-(5)What are the most promising new materials for lithium batteries in the future

(5)What are the most promising new materials for lithium batteries in the future
author:enerbyte source:本站 click337 Release date: 2023-11-07 08:35:56
abstract:
The advantages of lithium rich base as a positive electrode material include: High energy density and abundant important raw materials Due to the short development time, there are currently a series of issues with lithium rich manganese based materials:...

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The advantages of lithium rich base as a positive electrode material include:

High energy density and abundant important raw materials

Due to the short development time, there are currently a series of issues with lithium rich manganese based materials:

The first discharge efficiency is very low, the material undergoes oxygen evolution during the cycling process, posing safety hazards, poor cycling life, and low rate performance.

At present, the methods to solve these problems include coating, acid treatment, doping, pre cycling, heat treatment, etc. Although lithium rich manganese based materials have significant capacity advantages and huge potential, due to slow technological progress, it will take time for them to be launched in large quantities.

6. Power type nickel cobalt lithium manganese material

The route of power lithium batteries has always been highly controversial, so routes such as lithium iron phosphate, lithium manganese oxide, and ternary materials have been adopted. The domestic power lithium battery route is mainly based on lithium iron phosphate, but with Tesla's global popularity, its use of ternary material routes has caused a craze.

Although lithium iron phosphate has high safety, its weak energy density cannot be overcome, and new energy vehicles require longer range. Therefore, in the long run, materials with higher capacity will replace lithium iron phosphate as the next generation mainstream technology route.

The nickel cobalt lithium manganese oxide ternary material is most likely to become the mainstream material for the next generation of power lithium batteries in China. Domestic electric vehicles such as the Beiqi E150EV, Jianghuai IEV4, Chery EQ, and Blue have successively launched the ternary route, with a significant increase in unit weight density compared to lithium iron phosphate batteries.

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