This technology features a porous framework formed by stacking angular, polyhedral porous carbon particles through line or surface contact. By incorporating lithium metal into the interior and the interstitial spaces of this framework, the technology ensures structural stability and effectively suppresses lithium dendrite growth.
Conventional slurry-cast anodes often suffer from structural collapse due to binder aggregation, poor active material adhesion, and non-uniform distribution. When used with lithium metal anodes, these issues lead to dendrite growth, resulting in shortened cycle life and reduced safety.
This technology utilizes electrophoretic deposition to uniformly deposit a binder and porous carbon particles—with a particle size distribution satisfying 1.1 ≤ D90/D10 ≤ 1.9—onto a current collector, creating a robust porous framework. By filling the pores with lithium metal, it facilitates stable lithium plating and stripping. It is suitable for lithium metal battery anodes, electric vehicle cells requiring fast charging, and high-energy pouch cells that necessitate thick electrodes, as the framework remains intact even in thick electrodes, thereby maintaining a long cycle life.
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