发明名称 |
PRODUCTION METHOD FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY |
摘要 |
A production method for non-aqueous electrolyte secondary batteries includes a conditioning process in which an electrode group having a positive electrode and a negative electrode wound by interposing a separator therebetween is inserted inside a case a non-aqueous electrolyte including an overcharge additive is injected and the case is sealed, after which a restraining pressure is applied to the case, and charge/discharge is performed at least once. After initial charging in the conditioning process, a fracture portion is formed in secondary particles of a positive electrode active material, and then a conductive coating is formed on the fracture portion. |
申请公布号 |
US2016087315(A1) |
申请公布日期 |
2016.03.24 |
申请号 |
US201214370320 |
申请日期 |
2012.01.20 |
申请人 |
OYAMA Yutaka |
发明人 |
OYAMA Yutaka |
分类号 |
H01M10/42;H01M4/525;H01M2/34;H01M10/44;H01M4/36;H01M10/0567;H01M10/0587;H01M4/505;H01M4/62 |
主分类号 |
H01M10/42 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing a non-aqueous electrolyte secondary battery, the method including: inserting an electrode group having a positive electrode and a negative electrode wound by interposing a separator therebetween into a case; injecting a non-aqueous electrolyte solution containing an overcharge additive and hermetically closing the case; and then performing a conditioning process to charge and discharge the battery at least once or more while applying restraining pressure to the case,
wherein the conditioning process includes forming a fracture portion in secondary particles of a positive active material after initial charge, and further forming a conductive coating on the fracture portion. |
地址 |
Toyota-shi JP |