Title:
BORON-DOPED RESIN-COATED ARTIFICIAL GRAPHITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/166059
Kind Code:
A1
Abstract:
The present invention relates to the field of battery materials, and particularly relates to a boron-doped resin-coated artificial graphite material. The material is of a core-shell structure, wherein the core is artificial graphite, and the shell is a boron-doped hard-carbon coating layer with a coating amount of 0.5%-2%. In the boron-doped resin-coated artificial graphite material provided in the present invention, a graphite surface is coated with a boron-containing complex of lithium salt and hard carbon, such that the first round-trip efficiency of the material can be improved while the electronic and ionic conductivity of the material is also improved, thereby improving the power performance, cycle performance and energy density of a battery.
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Inventors:
WU WU (CN)
YANG YONGJUN (CN)
YANG YONGJUN (CN)
Application Number:
PCT/CN2021/099131
Publication Date:
August 11, 2022
Filing Date:
June 09, 2021
Export Citation:
Assignee:
GUANGDONG KAIJIN NEW ENERGY TECH CO LTD (CN)
International Classes:
H01M4/62; H01M4/36
Foreign References:
| CN102231434A | 2011-11-02 | |||
| CN109148847A | 2019-01-04 | |||
| CN111944267A | 2020-11-17 | |||
| US20200119338A1 | 2020-04-16 |
Attorney, Agent or Firm:
DONGGUAN HENGCHENG IP AGENCY CO., LTD. (CN)
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