...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 world's reserves of such metals.
The US Geological Survey mineral commodity summary for 2017 for rare earths gives China's 2016 rare earth's production at 105,...
There is plenty of people trying ad hoc experiments about what happens to phones put in a microwave:
Cell Phone In A Microwave! video
Cell Phone In The Microwave video
Is It A Good Idea To Microwave A Cell Phone? video - excludes battery
Without peer-review and a proper literature search, there is a limit to how much we can trust these anecdotes. Further, ...
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 batteries. The problem is that in order to get a decent range, you need a lot of batteries. From an engineering perspective, these batteries are heavy, which ...
It cannot be done safely, or with more than limited success. Your results may vary.
First, we need to understand how batteries work. Two chemicals with opposite charges are separated in a cell. When a circuit is completed from the cathode (+) to the anode (-), electromagnetism happens and the two chemicals react with each other, releasing electricity, until ...
China holds 95% of the world production of Rare-earth Elements
When the letter says...
The rare metals [...]. More than 85% of the world’s supply comes from China
...I believe the author means Rare-earth Elements/Rare-earth Metals.
REMs are necessary elements in the production of electronics, computer chips of all kinds, computer/phone displays, solar ...
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:
Imagine the satisfaction of driving your environmentally friendly
electric car for 1,500 miles without having to stop to recharge the
battery – a distance ...
No, lithium scarcity is not a barrier to the take-up of electric vehicles.
The world’s largest untapped lithium reserve -- containing enough of the lightest metal to make batteries for more than 4.8 billion electric cars ... according to the U.S. Geological Survey.
Yes, bouncing batteries tell you if they are charged or not.
The claim started with this YouTube video:
How To Test a AA battery, Easiest Way For Any Battery Fast, Easy!
After it went viral, scientists in the US have been curious, and later they confirmed that a simple bounce test can be used as a technique if a battery is charged.
A team led by Daniel ...
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 lithium-ion batteries, [Benchmark Mineral Intelligence analyst Caspar Rawles] he said.
Oddly enough a techcruch piece is somewhat contradictory
Interestingly, despite my comment above (which was based on some info I had on early laptop batteries) I have found this article on batteryuniversity.com on Lithium based batteries. I would definitely recommend reading it, and the other information pages there - a lot of good into on the different types:
This table compares the number of discharge/charge ...
No, that claim is highly inaccurate. I'm guessing that it's somehow related to the part of a talk that was widely quoted (also by mainstream media):
Shai Agassi, the founder and former CEO of Better Place, also touted
the importance of the rate of battery innovation during his talk at
the Cleantech Investor Summit. He said the energy density of ...
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 produced as a by-product of nickel mining, and the main source has been the DRC (Congo); there, the use of child "labor" has been getting significant public exposure, ...
Yes, it can.
This video explains why it works
This test works equally well for AA, AAA, C, D and 9 Volt alkaline
It is our understanding that the following chemical reactions occur
and helps to explain our observations.
A non-rechargeable alkaline battery begins life using zinc powder
mixed into a gel containing a potassium ...
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 they do. Here's the abstract of Choi and Lim, (who stated their affiliation as Samsung) "Factors that affect cycle-life and possible degradation mechanisms of a ...
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 ion batteries.
China produced 2000/35,000 or 6% according the 2017 USGS report on lithium.
Many lithium ion batteries also contain cobalt.
China produced ...
Lithium ion batteries are considered as hazardous materials for purposes of airline transportation regulations because they can overheat and ignite in certain conditions and, once ignited, can rapidly spread and be especially difficult to reduce. Research into lithium ion battery fire and explosion shows that the fuel, oxygen and energy existing in lithium ...
First post in this group. Generally any lithium battery is rather dangerous. My experience stems from drone flight (lipos mostly), reasonable travel (airplane) and research to keep things safe.
Regarding "explode", that is a little hyperbolic. There is not really a "boom", more like a fizz that turns into a fire and possibly a jet of flame. Explosions are ...
This paper Bouncing Alkaline Batteries: A Basic Solution confirms the causal link between battery bounce characteristics and state of charge for selected battery chemistries and describes the mechanism imvolved. They say:
The coefficient of restitution of alkaline batteries has been shown to increase as a function of
depth of discharge. In this work, using ...
Storing Li-ion batteries at low temperatures does appear to reduce the rate of capacity loss (page 4, figure 5). They only compared two storage temperatures (5C and 35C), but the batteries stored in the former displayed substantially less loss in capacity.