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The Evolution of Battery Technology

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The Battery Series
Part 1: The Evolution of Battery Technology

The Battery Series is a five-part infographic series that explores what investors need to know about modern battery technology, including raw material supply, demand, and future applications.

Presented by: Nevada Energy Metals, eCobalt Solutions Inc., and Great Lakes Graphite

The Battery Series - Part 1The Battery Series - Part 2The Battery Series - Part 3The Battery Series - Part 4The Battery Series - Part 5

The Battery Series: The Evolution of Battery Technology

The Battery Series - Part 1The Battery Series - Part 2The Battery Series - Part 3The Battery Series - Part 4The Battery Series - Part 5

Introduction to The Battery Series

Today, how we store energy is just as important as how we create it.

Battery technology already makes electric cars possible, as well as helping us to store emergency power, fly satellites, and use portable electronic devices.

But tomorrow, could you be boarding a battery-powered airplane, or living in a city powered at night by solar energy?

The Battery Series is a five-part infographic series that explores how batteries work, the players in the market, the materials needed to build batteries, and how future battery developments may affect the world. This is Part 1, which looks at the basics of batteries and the history of battery technology.

Sponsors
Nevada Energy Metals
eCobalt Solutions Inc.
Great Lakes Graphite

Battery Basics

Batteries convert stored chemical energy directly into electrical energy. Batteries have three main components:

(-) Anode:The negative electrode that gets oxidized, releasing electrons

(+) Cathode: The positive electrode that is reduced, by acquiring electrons

Electrolyte: The medium that provides the ion transport mechanism between the cathode and anode of a cell. It can be liquid or solid.

At the most basic level, batteries are very simple. In fact, a primitive battery can even be made with a copper penny, galvanized nail (zinc), and a lemon or potato.

The Evolution of Battery Technology

While creating a simple battery is quite easy, the challenge is that making a good battery is very difficult. Balancing power, weight, cost, and other factors involves managing many trade-offs, and scientists have worked for hundreds of years to get to today’s level of efficiency.

Here’s a brief history of how batteries have changed over the years:

Voltaic Pile (1799)

Italian physicist Alessandro Volta, in 1799, created the first electrical battery that could provide continuous electrical current to a circuit. The voltaic pile used zinc and copper for electrodes with brine-soaked paper for an electrolyte.

His invention disproved the common theory that electricity could only be created by living beings.

Daniell Cell (1836)

About 40 years later, a British chemist named John Frederic Daniell would create a new cell that would solve the “hydrogen bubble” problem of the Voltaic pile. This previous problem, in which bubbles collected on the bottom of the zinc electrodes, limited the pile’s lifespan and uses.

The Daniell cell, invented in 1836, used a copper pot filled with copper sulfate solution, which was further immersed in an earthenware container filled with sulfuric acid and a zinc electrode.

The Daniell cell’s electrical potential became the basis unit for voltage, equal to one volt.

Lead-acid (1859)

The lead-acid battery was the first rechargeable battery, invented in 1859 by French physicist Gaston Planté.

Lead-acid batteries excel in two areas: they are very low cost, and they also can supply high surge currents.
This makes them suitable for automobile starter motors even with today’s technology, and it’s part of the reason $44.7 billion of lead-acid batteries were sold globally in 2014.

Nickel Cadmium (1899)

NiCd batteries were invented in 1899 by Waldemar Jungner in Sweden. The first ones were “wet-cells” similar to lead-acid batteries, using a liquid electrolyte.

Nickel Cadmium batteries helped pave the way for modern technology, but they are being used less and less because of cadmium’s toxicity. NiCd batteries lost 80% of their market share in the 1990s to batteries that are more familiar to us today.

Alkaline Batteries (1950s)

Popularized by brands like Duracell and Energizer, alkaline batteries are used in regular household devices from remote controls to flashlights. They are inexpensive and typically non-rechargeable, though they can be made rechargeable by using a specially designed cell.

The modern alkaline battery was invented by Canadian engineer Lewis Urry in the 1950s. Using zinc and manganese oxide in the electrodes, the battery type gets its name from the alkaline electrolyte used: potassium hydroxide.

Over 10 billion alkaline batteries have been made in the world.

Nickel-Metal Hydride (1989)

Similar to the rechargeable NiCd battery, the NiMH formulation uses a hydrogen-absorbing alloy instead of toxic cadmium. This makes it more environmentally safe – and it also helps to increase the energy density.

NiMH batteries are used in power tools, digital cameras, and some other electronic devices. They also were used in early hybrid vehicles such as the Toyota Prius.

The development of the NiMH spanned two decades, and was sponsored by Daimler-Benz and Volkswagen AG. The first commercially available cells were in 1989.

Lithium-Ion (1991)

Sony released the first commercial lithium-ion battery in 1991.

Lithium-ion batteries have high energy density and have a number of specific cathode formulations for different applications.

For example, lithium cobalt dioxide (LiCoO2) cathodes are used in laptops and smartphones, while lithium nickel cobalt aluminum oxide (LiNiCoAlO2) cathodes, also known as NCAs, are used in the batteries of vehicles such as the Tesla Model S.

Graphite is a common material for use in the anode, and the electrolyte is most often a type of lithium salt suspended in an organic solvent.

The Rechargeable Battery Spectrum

There are several factors that could affect battery choice, including cost.

However, here are two of the most important factors that determine the fit and use of rechargeable batteries specifically:

Think of specific energy as in the amount of water in a tank. It’s the amount of energy a battery holds in total.

Meanwhile, specific power is the speed at which that water can pour out of the tank. It’s the amount of current a battery can supply for a given use.

And while today the lithium-ion battery is the workhorse for gadgets and electric vehicles – what batteries will be vital to our future? How big is that market?

Find out in the rest of the Battery Series. (Parts 2 through 5 will be released throughout the summer of 2016).

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Technology

Mapped: Drone Privacy Laws Around the World

By 2025, the global commercial drone market could reach $42.8 billion. With such diverse uses, how do countries navigate drone privacy laws?

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Mapped: Drone Privacy Laws Around the World

View the high-resolution of the infographic by clicking here.

From Olympic opening ceremonies to public safety, drone applications have come a long way.

In fact, their modern applications are set to almost double the total value of the commercial drone market from $22.5 billion to $42.8 billion between 2020-2025, at a 13.8% compound annual growth rate (CAGR).

Naturally, such diverse and complex uses can go quickly awry if not monitored and regulated correctly by governments—yet in some cases, it’s because of governments that drones’ uses border on sinister.

This in-depth map from Surfshark explores the murky guidelines surrounding drone privacy laws around the world, and some case studies of how they’re used in every region.

How Are Drone Privacy Laws Classified?

According to the map researchers, drone and unmanned aerial vehicle (UAV) regulations typically fall into one of the following buckets:

  1. Outright ban
  2. Effective ban
  3. Visual line of sight required
    Pilots need to be able to see the drones at all times, and must usually obtain a license or permit
  4. Experimental visual line of sight
    Pilots can let the drone fly outside their field of vision e.g. during a race
  5. Restrictions apply
    Drones need to be registered, and/or additional observers are required
  6. Unrestricted
    When drones are flown around private property and airports, and under 500 feet (150 meters)
  7. No drone-related legislation

Categories are assigned based on legislation as of October 2020.

Clearly, there is some overlap among these categories. They are highly dependent on judgment calls made by specific legal authorities, and change based on what a drone is being used for.

Explore the drone privacy laws in your specific country here:

Country/TerritoryContinentDrone Legal Status (Oct. 2020)
AfghanistanAsiaUnrestricted
AlbaniaEuropeNo drone-related legislation
AlgeriaAfricaOutright ban
AndorraEuropeVisual line of sight required
AngolaAfricaNo drone-related legislation
Antigua and BarbudaNorth AmericaExperimental visual line of sight
ArgentinaSouth AmericaUnrestricted
ArmeniaEuropeNo drone-related legislation
ArubaNorth AmericaVisual line of sight required
AustraliaOceaniaExperimental visual line of sight
AustriaEuropeUnrestricted
AzerbaijanEuropeVisual line of sight required
Bahamas, TheNorth AmericaUnrestricted
BahrainAsiaNo drone-related legislation
BangladeshAsiaUnrestricted
BarbadosNorth AmericaOutright ban
BelarusEuropeNo drone-related legislation
BelgiumEuropeVisual line of sight required
BelizeNorth AmericaEffective ban
BeninAfricaNo drone-related legislation
BermudaNorth AmericaVisual line of sight required
BhutanAsiaEffective ban
BoliviaSouth AmericaNo drone-related legislation
Bosnia and HerzegovinaEuropeNo drone-related legislation
BotswanaAfricaVisual line of sight required
BrazilSouth AmericaVisual line of sight required
Brunei DarussalamAsiaOutright ban
BulgariaEuropeEffective ban
Burkina FasoAfricaNo drone-related legislation
BurundiAfricaNo drone-related legislation
Cabo VerdeAfricaVisual line of sight required
CambodiaAsiaNo drone-related legislation
CameroonAfricaVisual line of sight required
CanadaNorth AmericaExperimental visual line of sight
Cayman IslandsNorth AmericaExperimental visual line of sight
Central African RepublicAfricaNo drone-related legislation
ChadAfricaUnrestricted
ChileSouth AmericaVisual line of sight required
ChinaAsiaExperimental visual line of sight
ColombiaSouth AmericaVisual line of sight required
ComorosAfricaNo drone-related legislation
Congo, Dem. Rep.AfricaNo drone-related legislation
Congo, Rep.AfricaNo drone-related legislation
Costa RicaNorth AmericaVisual line of sight required
Cote d'IvoireAfricaOutright ban
CroatiaEuropeVisual line of sight required
CubaNorth AmericaOutright ban
CuracaoNorth AmericaVisual line of sight required
CyprusEuropeVisual line of sight required
Czech RepublicEuropeExperimental visual line of sight
DenmarkEuropeExperimental visual line of sight
DjiboutiAfricaNo drone-related legislation
DominicaNorth AmericaNo drone-related legislation
Dominican RepublicNorth AmericaVisual line of sight required
EcuadorSouth AmericaVisual line of sight required
Egypt, Arab Rep.AfricaEffective ban
El SalvadorNorth AmericaNo drone-related legislation
Equatorial GuineaAfricaNo drone-related legislation
EritreaAfricaNo drone-related legislation
EstoniaEuropeUnrestricted
EthiopiaAfricaNo drone-related legislation
Faroe IslandsEuropeUnrestricted
FijiOceaniaVisual line of sight required
FinlandEuropeExperimental visual line of sight
FranceEuropeExperimental visual line of sight
GabonAfricaNo drone-related legislation
Gambia, TheAfricaNo drone-related legislation
GeorgiaEuropeVisual line of sight required
GermanyEuropeExperimental visual line of sight
GhanaAfricaExperimental visual line of sight
GibraltarEuropeEffective ban
GreeceEuropeUnrestricted
GreenlandNorth AmericaVisual line of sight required
GrenadaNorth AmericaNo drone-related legislation
GuamOceaniaUnrestricted
GuatemalaNorth AmericaNo drone-related legislation
GuineaAfricaNo drone-related legislation
Guinea-BissauAfricaNo drone-related legislation
GuyanaSouth AmericaExperimental visual line of sight
HaitiNorth AmericaNo drone-related legislation
HondurasNorth AmericaNo drone-related legislation
Hong Kong SAR, ChinaAsiaVisual line of sight required
HungaryEuropeUnrestricted
IcelandEuropeVisual line of sight required
IndiaAsiaVisual line of sight required
IndonesiaAsiaVisual line of sight required
Iran, Islamic Rep.AsiaOutright ban
IraqAsiaOutright ban
IrelandEuropeExperimental visual line of sight
IsraelAsiaVisual line of sight required
ItalyEuropeVisual line of sight required
JamaicaNorth AmericaVisual line of sight required
JapanAsiaExperimental visual line of sight
JordanAsiaUnrestricted
KazakhstanEuropeNo drone-related legislation
KenyaAfricaEffective ban
KiribatiOceaniaNo drone-related legislation
Korea, Dem. People’s Rep.AsiaNo drone-related legislation
Korea, Rep.AsiaVisual line of sight required
KosovoEuropeVisual line of sight required
KuwaitAsiaOutright ban
Kyrgyz RepublicAsiaOutright ban
Lao PDRAsiaUnrestricted
LatviaEuropeUnrestricted
LebanonAsiaNo drone-related legislation
LesothoAfricaNo drone-related legislation
LiberiaAfricaNo drone-related legislation
LibyaAfricaNo drone-related legislation
LiechtensteinEuropeExperimental visual line of sight
LithuaniaEuropeVisual line of sight required
LuxembourgEuropeVisual line of sight required
Macao SAR, ChinaAsiaVisual line of sight required
MadagascarAfricaOutright ban
MalawiAfricaVisual line of sight required
MalaysiaAsiaEffective ban
MaldivesAsiaEffective ban
MaliAfricaNo drone-related legislation
MaltaEuropeUnrestricted
Marshall IslandsOceaniaNo drone-related legislation
MauritaniaAfricaNo drone-related legislation
MauritiusAfricaVisual line of sight required
MexicoNorth AmericaVisual line of sight required
Micronesia, Fed. Sts.OceaniaNo drone-related legislation
MoldovaEuropeNo drone-related legislation
MonacoEuropeUnrestricted
MongoliaAsiaNo drone-related legislation
MontenegroEuropeVisual line of sight required
MoroccoAfricaOutright ban
MozambiqueAfricaNo drone-related legislation
MyanmarAsiaEffective ban
NamibiaAfricaVisual line of sight required
NauruOceaniaNo drone-related legislation
NepalAsiaVisual line of sight required
NetherlandsEuropeVisual line of sight required
New CaledoniaOceaniaNo drone-related legislation
New ZealandOceaniaExperimental visual line of sight
NicaraguaNorth AmericaOutright ban
NigerAfricaNo drone-related legislation
NigeriaAfricaEffective ban
North MacedoniaEuropeVisual line of sight required
NorwayEuropeVisual line of sight required
OmanAsiaEffective ban
PakistanAsiaNo drone-related legislation
PalauOceaniaNo drone-related legislation
PanamaNorth AmericaUnrestricted
Papua New GuineaOceaniaVisual line of sight required
ParaguaySouth AmericaNo drone-related legislation
PeruSouth AmericaVisual line of sight required
PhilippinesAsiaVisual line of sight required
PolandEuropeExperimental visual line of sight
PortugalEuropeExperimental visual line of sight
Puerto RicoNorth AmericaExperimental visual line of sight
QatarAsiaUnrestricted
RomaniaEuropeVisual line of sight required
Russian FederationEuropeExperimental visual line of sight
RwandaAfricaExperimental visual line of sight
SamoaOceaniaNo drone-related legislation
San MarinoEuropeNo drone-related legislation
Sao Tome and PrincipeAfricaNo drone-related legislation
Saudi ArabiaAsiaExperimental visual line of sight
SenegalAfricaOutright ban
SerbiaEuropeUnrestricted
SeychellesAfricaVisual line of sight required
Sierra LeoneAfricaNo drone-related legislation
SingaporeAsiaExperimental visual line of sight
Sint Maarten (Dutch part)North AmericaExperimental visual line of sight
Slovak RepublicEuropeVisual line of sight required
SloveniaEuropeOutright ban
Solomon IslandsOceaniaVisual line of sight required
SomaliaAfricaNo drone-related legislation
South AfricaAfricaExperimental visual line of sight
South SudanAfricaNo drone-related legislation
SpainEuropeExperimental visual line of sight
Sri LankaAsiaExperimental visual line of sight
St. Kitts and NevisNorth AmericaNo drone-related legislation
St. LuciaNorth AmericaUnrestricted
St. Martin (French part)North AmericaExperimental visual line of sight
St. Vincent and the GrenadinesNorth AmericaNo drone-related legislation
SudanAfricaNo drone-related legislation
SurinameSouth AmericaNo drone-related legislation
SwazilandAfricaVisual line of sight required
SwedenEuropeUnrestricted
SwitzerlandEuropeUnrestricted
Syrian Arab RepublicAsiaOutright ban
TaiwanAsiaVisual line of sight required
TajikistanAsiaNo drone-related legislation
TanzaniaAfricaVisual line of sight required
ThailandAsiaVisual line of sight required
Timor-LesteAsiaNo drone-related legislation
TogoAfricaNo drone-related legislation
TongaOceaniaNo drone-related legislation
Trinidad and TobagoNorth AmericaExperimental visual line of sight
TunisiaAfricaNo drone-related legislation
TurkeyEuropeUnrestricted
TurkmenistanAsiaNo drone-related legislation
Turks and Caicos IslandsNorth AmericaUnrestricted
TuvaluOceaniaNo drone-related legislation
UgandaAfricaExperimental visual line of sight
UkraineEuropeVisual line of sight required
United Arab EmiratesAsiaVisual line of sight required
United KingdomEuropeExperimental visual line of sight
United StatesNorth AmericaExperimental visual line of sight
UruguaySouth AmericaVisual line of sight required
UzbekistanAsiaOutright ban
VanuatuOceaniaVisual line of sight required
Venezuela, RBSouth AmericaUnrestricted
VietnamAsiaUnrestricted
Yemen, Rep.AsiaNo drone-related legislation
ZambiaAfricaVisual line of sight required
ZimbabweAfricaExperimental visual line of sight

So How Are Drones Used Worldwide?

The myriad of drone uses are literally and metaphorically up in the air—while they originated in military needs, drone uses now range from hobbies such as aerial photography to supporting disaster relief.

The following regional maps show privacy laws in closer detail, while also highlighting interesting case studies on how drones are used.

North America

Drone Privacy Laws 820px North America
Click here for the high-resolution version of this graphic.

According to the latest drone numbers, 70.5% of registered U.S. drones are recreational, but these proportions may soon decline in favor of commercial uses. As of December 2020, civilian drones are allowed to fly over populated areas, a step towards fulfilling their potential in package delivery.

Meanwhile, countries like Mexico are beginning to rely on drones to combat crime, with good results. In the city of Ensenada, a single drone’s surveillance patrol resulted in a 10% drop in overall crime rates in 2018. Drones are increasingly being used to monitor illicit activity such as drug trafficking routes.

South America

Drone Privacy Laws 820px South America
Click here for the high-resolution version of this graphic.

Interestingly, the environmental applications of drones come into play in the Amazon rainforest. An indigenous tribe in Brazil is using drones to track levels of deforestation and forest fires—and presenting that data evidence to authorities to urge them to act.

Across the continent, drones are also in place to deliver everything from hospital supplies to life jackets in Chile and El Salvador.

Europe

Drone Privacy Laws 820px Europe
Click here for the high-resolution version of this graphic.

The first unmanned, radio-controlled aircraft test flight occurred in the United Kingdom in 1917. The Kettering Aerial Target (or “The Bug”) carried 180 pounds of explosives and became the basis for modern missiles.

While Europe has some of the most liberal drone privacy laws today, that doesn’t mean they’re lenient. Even among countries that allow experimental visual lines of sight (such as Finland and Portugal), special permissions are required.

Middle East and Central Asia

Drone Privacy Laws 820px Middle east and central asia
Click here for the high-resolution version of this graphic.

The military applications of drones persist in this region. Iran was one of the first to use armed drones and continues to do so, while simultaneously banning their public use.

Neighboring Turkey also relies on kamikaze drones, augmented by AI and facial recognition, to strengthen border security.

Rest of Asia and Oceania

Drone Privacy Laws 820px Rest of Asia Oceania
Click here for the high-resolution version of this graphic.

China-based DJI is the world’s largest drone manufacturer, dominating 70% of the global market. Across Asia, drones have been in use for mass surveillance, particularly in China. In recent times, drones also track compliance with strict COVID-19 guidelines in Malaysia and Singapore.

Meanwhile, in Japan, Nokia is testing out a drone network to provide a more rapid response to future natural disasters. The relief capabilities include disseminating more real-time updates and monitoring evacuation progress.

Africa

Drone Privacy Laws 820px Africa
Click here for the high-resolution version of this graphic.

While many parts of Africa haven’t developed any drone-related laws yet, promising innovation is rearing its head. Medical drones are already saving lives in Rwanda, delivering supplies in as little as 15 minutes.

In the same vein, the pioneer African Drone and Data Academy (ADDA) opened in Malawi. The academy promotes drone usage for humanitarian and disaster preparedness, and aims to equip individuals with the relevant skills.

Towards Greater Heights?

As the uses of drones evolve over time, so will their legal status and the privacy concerns surrounding them. However, the adoption of any technology is always accompanied by a certain level of skepticism.

With drones, it remains to be seen whether they’ll mostly occupy the role of a friend or a foe for years to come—and that power lies only in the hands of those who remotely control them.

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The Business of Airbnb, by the Numbers

From rooms to revenue, this infographic breaks down the numbers behind the business of Airbnb—one of the most successful IPOs of 2020.

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The Business of Airbnb, by the Numbers

Airbnb was one of the most highly anticipated IPOs of 2020.

After a trading surge, the company’s market cap topped the $100 billion mark. Now that the dust has settled, here are some key numbers behind the company’s unique business model.

The Last 5 Years

Since 2015, Airbnb has had an epic run.

With a market cap of close to $90 billion, they are one of the largest businesses in the travel and tourism space. However, there is still plenty of room to grow: Airbnb identifies their total addressable market (TAM) to be worth $3.4 trillion.

Metric20152016201720182019
Gross Booking Value ($ Billions)$8.1B$13.9B$21.0B$29.4B$38.0B
Annual Nights & Experiences Booked (In Millions)72.4M125.7M185.8M250.3M326.9M
Revenues ($ Billions)$919M$1.6B$2.5B$3.6B$4.8B

Nights and experiences booked by customers have shot up 4.5x, from 72 million in 2015 to 326 million in 2019. At the same time, the gross dollar value of these bookings has surged from $8.1 billion to $38 billion.

No Shortage Of Space

Airbnb’s ability to scale its services is reflected by its room count, which is unmatched when compared to the hotel industry.

In 2019, Airbnb had nearly 5 million rooms available, a mammoth of a figure considering the next largest was Marriott at 1.3 million. The company is a giant thorn in the hotel industry’s side, and their room count is approximately the size of the five largest hotel chains combined.

A Shortage Of Profits

Despite a global presence and attractive numbers, the business of Airbnb is yet to be profitable.

Airbnb has lost money every year—and the company’s cumulative losses total $2.8 billion since 2008. Not surprisingly, those losses have been exacerbated during the pandemic, a common theme for all travel and tourism stocks. Airbnb had -4 million bookings in March, and these negative bookings helped lead to a -32% decline on their top line compared to 2019.

Metric201520162017201820192020 (Q1'-Q3')
Revenue$919M$1.6B$2.5B$3.6B$4.8B$2.5B
Net Income-$135M-$136M-$70M$-17M-$674M-$696M

Airbnb’s net income losses so far in fiscal 2020 (Q1-Q3) are -$696 million, the largest of any year.

Silver Linings

Airbnb has demonstrated an ability to adapt during this time of uncertainty through the introduction of digital experiences. They also made the tough decision to cut 25% of their staff this year.

Monthly bookings and experiences have shown signs of recovery. Since the negative bookings earlier in March, figures have crept back up to the 20 million range, near pre-pandemic levels.

A resilient segment for the business of Airbnb is short-distance travel within 50 miles of guest origin. As the pandemic expanded, people are taking vacations from their abodes by visiting less densely populated neighboring communities.

Another Hot IPO

The Airbnb IPO was one of many headline makers of 2020. When it comes to initial public offerings, markets as of late have shown no shortage of exuberance. Company shares have had the tendency to surge once hitting the secondary market, reflecting investor appetite. The Airbnb IPO experienced just this: initially intending to be priced at $56-$60 a share, in just a few weeks they traded as high as $160 per share.

The Renaissance IPO Index, a returns tracker for U.S. public offerings, reports that IPOs are up roughly 108% in the last calendar year, experiencing one of the best years on record.

But the aftermath of an IPO can just as likely go sour. Public companies are subject to more strenuous regulation relative to the private markets. And with a near $90 billion valuation, future expectations are high for Airbnb. The company will have to woo shareholders in the coming quarters to keep momentum, which likely means showing strides in an uncertain travel and tourism landscape.

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