Invention Grant
- Patent Title: Positive electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery
-
Application No.: US16335088Application Date: 2017-05-19
-
Publication No.: US11043659B2Publication Date: 2021-06-22
- Inventor: Hidekazu Hiratsuka
- Applicant: Panasonic Corporation
- Applicant Address: JP Kadoma
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Kadoma
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JPJP2016-192034 20160929
- International Application: PCT/JP2017/018768 WO 20170519
- International Announcement: WO2018/061298 WO 20180405
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M4/13 ; H01M4/131 ; H01M10/052

Abstract:
A positive electrode for a nonaqueous electrolyte secondary battery includes a positive electrode current collector and a positive electrode mixture layer which contains a positive electrode active material and is disposed on the positive electrode current collector. The void ratio of the positive electrode mixture layer is 30% or less, and the void ratio of secondary particles of the positive electrode active material is within a range of 30% or more and 70% or less of the void ratio of the positive electrode mixture layer.
Public/Granted literature
Information query