The density of the new lithium metal battery is 560 Wh/kg: this is twice as much as modern ones
Lithium metal batteries have a highenergy storage density, but are often unstable. As the battery charges and discharges, small cracks appear in the battery, into which electrolyte penetrates, exacerbating the destruction.
In the new work, the authors were looking for such a combinationmaterials of electrodes with electrolyte, which would not cause destruction of the battery and loss of capacity. As a result, the researchers used a special layered structure of the lithium metal battery cathode with low cobalt content.
In fact, the material of the new cathode containedunusually high nickel content (NCM88). Also, instead of the traditional organic-based LP30 electrolyte, a non-volatile and non-flammable dual-anion liquid electrolyte (ILE) was adopted.
The combination of the NCM88 cathode and ILE electrolyte met all the requirements: the authors achieved record energy storage density and wear resistance.
Read more:
Giant iceberg A74 collides with the coast of Antarctica
Two new dinosaur species discovered in China
What is the Kessler effect, and also when and what will the collision of satellites in orbit lead to?