Technology
Visualizing the Critical Metals in a Smartphone
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Visualizing the Critical Metals in a Smartphone
In an increasingly connected world, smartphones have become an inseparable part of our lives.
Over 60% of the world’s population owns a mobile phone and smartphone adoption continues to rise in developing countries around the world.
While each brand has its own mix of components, whether it’s a Samsung or an iPhone, most smartphones can carry roughly 80% of the stable elements on the periodic table.
But some of the vital metals to build these devices are considered at risk due to geological scarcity, geopolitical issues, and other factors.
Smartphone Part | Critical Metal |
---|---|
Touch Screen | indium |
Display | lanthanum; gadolinium; praseodymium; europium; terbium; dysprosium |
Electronics | nickel, gallium, tantalum |
Casing | nickel, magnesium |
Battery | lithium, nickel, cobalt |
Microphone, speakers, vibration unit | nickel, praseodymium, neodymium, gadolinium, terbium, dysprosium |
What’s in Your Pocket?
This infographic based on data from the University of Birmingham details all the critical metals that you carry in your pocket with your smartphone.
1. Touch Screen
Screens are made up of multiple layers of glass and plastic, coated with a conductor material called indium which is highly conductive and transparent.
Indium responds when contacted by another electrical conductor, like our fingers.
When we touch the screen, an electric circuit is completed where the finger makes contact with the screen, changing the electrical charge at this location. The device registers this electrical charge as a “touch event”, then prompting a response.
2. Display
Smartphones screens display images on a liquid crystal display (LCD). Just like in most TVs and computer monitors, a phone LCD uses an electrical current to adjust the color of each pixel.
Several rare earth elements are used to produce the colors on screen.
3. Electronics
Smartphones employ multiple antenna systems, such as Bluetooth, GPS, and WiFi.
The distance between these antenna systems is usually small making it extremely difficult to achieve flawless performance. Capacitors made of the rare, hard, blue-gray metal tantalum are used for filtering and frequency tuning.
Nickel is also used in capacitors and in mobile phone electrical connections. Another silvery metal, gallium, is used in semiconductors.
4. Microphone, Speakers, Vibration Unit
Nickel is used in the microphone diaphragm (that vibrates in response to sound waves).
Alloys containing rare earths neodymium, praseodymium and gadolinium are used in the magnets contained in the speaker and microphone. Neodymium, terbium and dysprosium are also used in the vibration unit.
5. Casing
There are many materials used to make phone cases, such as plastic, aluminum, carbon fiber, and even gold. Commonly, the cases have nickel to reduce electromagnetic interference (EMI) and magnesium alloys for EMI shielding.
6. Battery
Unless you bought your smartphone a decade ago, your device most likely carries a lithium-ion battery, which is charged and discharged by lithium ions moving between the negative (anode) and positive (cathode) electrodes.
What’s Next?
Smartphones will naturally evolve as consumers look for ever-more useful features. Foldable phones, 5G technology with higher download speeds, and extra cameras are just a few of the changes expected.
As technology continues to improve, so will the demand for the metals necessary for the next generation of smartphones.
This post was originally featured on Elements
Technology
Countries With the Highest Rates of Crypto Ownership
While the U.S. is a major market for cryptocurrencies, two countries surpass it in terms of their rates of crypto ownership.
Countries With the Highest Rates of Crypto Ownership
This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.
This graphic ranks the top 10 countries by their rate of cryptocurrency ownership, which is the percentage of the population that owns crypto. These figures come from crypto payment gateway, Triple-A, and are as of 2023.
Data and Highlights
The table below lists the rates of crypto ownership in the top 10 countries, as well as the number of people this amounts to.
Country | % of Population Who Own Crypto | # of Crypto Owners |
---|---|---|
🇦🇪 United Arab Emirates | 30.4 | 3M |
🇻🇳 Vietnam | 21.2 | 21M |
🇺🇸 U.S. | 15.6 | 53M |
🇮🇷 Iran | 13.5 | 12M |
🇵🇭 Philippines | 13.4 | 16M |
🇧🇷 Brazil | 12 | 26M |
🇸🇦 Saudi Arabia | 11.4 | 4M |
🇸🇬 Singapore | 11.1 | 665K |
🇺🇦 Ukraine | 10.6 | 4M |
🇻🇪 Venezuela | 10.3 | 3M |
Note that if we were to rank countries based on their actual number of crypto owners, India would rank first at 93 million people, China would rank second at 59 million people, and the U.S. would rank third at 52 million people.
The UAE Takes the Top Spot
The United Arab Emirates (UAE) boasts the highest rates of crypto ownership globally. The country’s government is considered to be very crypto friendly, as described in Henley & Partners’ Crypto Wealth Report 2023:
In the UAE, the Financial Services Regulatory Authority (FSRA-ADGM) was the first to provide rules and regulations regarding cryptocurrency purchasing and selling. The Emirates are generally very open to new technologies and have proposed zero taxes for crypto owners and businesses.
Vietnam leads Southeast Asia
According to the Crypto Council for Innovation, cryptocurrency holdings in Vietnam are also untaxed, making them an attractive asset.
Another reason for Vietnam’s high rates of ownership could be its large unbanked population (people without access to financial services). Cryptocurrencies may provide an alternative means of accessing these services without relying on traditional banks.
Learn More About Crypto From Visual Capitalist
If you enjoyed this post, be sure to check out The World’s Largest Corporate Holders of Bitcoin, which ranks the top 12 publicly traded companies by their Bitcoin holdings.
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