Invention Grant
US09203079B2 Anode for secondary battery, secondary battery, and method of manufacturing anode for secondary battery
有权
二次电池用阳极,二次电池,二次电池用阳极的制造方法
- Patent Title: Anode for secondary battery, secondary battery, and method of manufacturing anode for secondary battery
- Patent Title (中): 二次电池用阳极,二次电池,二次电池用阳极的制造方法
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Application No.: US14176356Application Date: 2014-02-10
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Publication No.: US09203079B2Publication Date: 2015-12-01
- Inventor: Takakazu Hirose , Isamu Konishiike , Kenichi Kawase
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Dentons US LLP
- Priority: JP2005-161258 20050601
- Main IPC: H01M4/134
- IPC: H01M4/134 ; H01M4/1395 ; H01M2/02 ; H01M10/052 ; H01M4/38

Abstract:
An anode for a secondary battery capable of improving cycle characteristics, a secondary battery using the anode, and a method of manufacturing an anode for secondary battery. An anode active material layer is formed by vapor phase deposition method, and contains Si as an element. In the anode active material layer, there are a plurality of primary particles grown in the thickness direction. The primary particles aggregate and form a plurality of secondary particles. At least some of the primary particles have shape curved in the identical direction to an anode current collector on the cross section in the thickness direction. Thereby, stress due to expansion and shrinkage due to charge and discharge can be relaxed.
Public/Granted literature
- US20140154566A1 ANODE FOR SECONDARY BATTERY, SECONDARY BATTERY, AND METHOD OF MANUFACTURING ANODE FOR SECONDARY BATTERY Public/Granted day:2014-06-05
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