Title:
負極材料、電気化学装置及び電子装置
Document Type and Number:
Japanese Patent JP7378479
Kind Code:
B2
Abstract:
This application provides a negative electrode material, an electrochemical apparatus, and an electronic apparatus. The negative electrode material provided in embodiments of this application includes a silicon-based material, or a silicon-based material and graphite. The silicon-based material includes a silicon oxide material and a carbon layer located on a surface of the silicon oxide material. A particle size distribution of the silicon-based material satisfies 1≤(Dn99-Dn10)/Dn50≤4, Dn10≥1 µm, and Dn50≥3 µm. In the negative electrode material provided in the embodiments of this application, a number distribution of particle sizes of the silicon-based material can be controlled so that large and small particles are better matched, thereby improving cycling performance of an electrochemical apparatus.
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Inventors:
易 ▲ティン▼
Application Number:
JP2021539132A
Publication Date:
November 13, 2023
Filing Date:
December 28, 2020
Export Citation:
Assignee:
Ningde Amperex Technology Limited
International Classes:
H01M4/38; H01M4/36; H01M4/48; H01M4/587; H01M4/62; H01M10/052; H01M10/0567; H01M10/0569
Domestic Patent References:
| JP2007294432A | ||||
| JP2015164139A | ||||
| JP2015167145A |
Foreign References:
| WO2014002356A1 | ||||
| CN111029543A | ||||
| WO2018155609A1 |
Attorney, Agent or Firm:
Masao Sekiguchi
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