There is still plenty of room for lithium-ion batteries
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2020/10/27 10:18:06
Since SONY commercialized the first batch of lithium ion batteries in 1991, the "rocking chair batteries" with the above-mentioned lithium ions flowing back and forth have become the most promising and the fastest growing market.However, limited by the principle of lithium-ion batteries, the energy density of existing lithium-ion batteries has decreased from 7% annual growth rate to 2%, and is gradually approaching its theoretical limit.On the contrary, with the progress of society, people's demand for portable and clean life is stronger.
The use of electrode materials with less mass and more energy storage is expected to build lithium-ion batteries with higher energy density.The specific capacity of lithium metal is up to 3860mAh/g, which is the ultimate material for high specific energy batteries.But using lithium metal directly as a cathode material for the battery could not escape a "tarsal maggot" - dendrites.In the face of this cause lithium battery safety hazards of the "enemy", the world's scientists are making unremitting efforts.
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