High-voltage high-power single-crystal ternary positive electrode material and preparation method and application thereof
By coating the surface of nickel-cobalt-manganese particles with graphene and nano-oxides, a uniformly distributed internal void structure and a stable lithium-ion conductor coating layer are formed, solving the cycle performance and safety performance problems of high-voltage lithium-ion batteries and achieving high energy density and long lifespan lithium-ion battery performance.
CN117393745BActive Publication Date: 2026-06-26HEFEI GUOXUAN HIGH TECH POWER ENERGY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI GUOXUAN HIGH TECH POWER ENERGY
- Filing Date
- 2023-09-28
- Publication Date
- 2026-06-26
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Figure CN117393745B_ABST
Abstract
The application discloses a high-voltage high-power single-crystal ternary positive electrode material and a preparation method and application thereof. x Co y Mn 1‑x‑y O2, has a uniformly distributed internal void structure, a high powder compaction density and a good electrolyte infiltration effect, thereby improving battery power performance and cycle performance, and solving problems such as occurrence of a side reaction between a positive electrode active material and electrolyte, poor electrochemical performance of a lithium battery under high voltage, poor fast-charging performance and cycle performance and the like.
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