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71 votes

Do 1.5% of lithium-ion batteries overheat, explode, or catch fire each year?

On the face of it, this is worrying ... On the face of it, this statistic is ridiculous, and it does not jibe with other statistics on the same page. The web page also claims In 2020, the US ...
David Hammen's user avatar
  • 15.2k
65 votes

Does China control 85% of the supply of rare metals used in lithium batteries?

...but China only has 37% of the world's reserves Michael Karnerfors has provided evidence that China produces 95% of the world's rare earth elements. However, China does not hold that much of the ...
kingledion's user avatar
  • 1,103
50 votes

Can human body heat cause a mobile phone's battery to "run down at a faster rate"?

This diagram from this research paper shows that the self discharge rate of lithium ion batteries (such as used in phones) depends on the storage temperature: 20°C is about room temperature (just ...
JRE's user avatar
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20 votes

Has an engineer called Trevor Jackson invented a revolutionary battery allowing for a car range of 1500 miles?

While I don't know if this particular company is doing something useful or not, I can talk about what an aluminum battery could be used for in electric cars. In general, electric cars use lithium ion ...
user3757614's user avatar
15 votes

Can human body heat cause a mobile phone's battery to "run down at a faster rate"?

Effects of temperature on batteries are complex: Higher temperatures will cause a higher self-discharge rate. However, for a battery in a phone which is turned on, self-discharge is negligible ...
jcaron's user avatar
  • 897
13 votes

Has an engineer called Trevor Jackson invented a revolutionary battery allowing for a car range of 1500 miles?

This is not intended as a complete answer, but we do know the inventor does exist and has made these claims. But the articles are misleading, especially the Daily Mail one using language like this: ...
Jerome Viveiros's user avatar
12 votes

Can human body heat cause a mobile phone's battery to "run down at a faster rate"?

The opposite is possible in some situations, even likely. In many batteries, the internal resistance (Wikipedia for further reading) decreases with increasing temperature. This is effectively a ...
Chris H's user avatar
  • 411
11 votes

Does China control 85% of the supply of rare metals used in lithium batteries?

Based on an CNBC piece with similar claims, the Guardian letter seems to be talking about cobalt: For example, China controls 80 percent of the market in chemical cobalt, a crucial ingredient in ...
against very long user names's user avatar
6 votes

Does China control 85% of the supply of rare metals used in lithium batteries?

As you can read in this article, the main metals used in the common design of Li-ion battery are Lithium and Cobalt; lithium is quite abundant, but cobalt is a bit harder to find. It is usually ...
Floris's user avatar
  • 351
4 votes
Accepted

Does fully discharging a Lithium-based battery reduce its lifespan?

For a TLDR version, jump to the last paragraph. Since AccuBattery links to another paper than the one they actually cited, I felt like double checking if they represented the paper correctly... and ...
against very long user names's user avatar
2 votes

Does China control 85% of the supply of rare metals used in lithium batteries?

Some of the answers are referring to "rare earth" elements. There is nothing in the claim or lithium ion batteries related to rare earth elements. Lithium is the only metal ubiquitous to lithium ...
DavePhD's user avatar
  • 107k
1 vote

Are nano diamond batteries a breakthrough in battery technology?

Already from the draft article appearing on Wikipedia you can spot the issue: Its power density will be far lower than that of conventional chemical batteries If they get to the market as they are ...
FluidCode's user avatar
  • 777

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