Invention Grant
- Patent Title: Non-aqueous electrolyte secondary battery including tungsten
-
Application No.: US14975946Application Date: 2015-12-21
-
Publication No.: US09960449B2Publication Date: 2018-05-01
- Inventor: Koji Takahata
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Aichi-ken
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2014-266675 20141226
- Main IPC: H01M4/62
- IPC: H01M4/62 ; H01M10/0568 ; H01M4/485 ; H01M4/525 ; H01M4/505 ; H01M10/052 ; H01M10/44 ; H01M4/36

Abstract:
Provided is a non-aqueous electrolyte secondary battery with reduced resistance in a low SOC range, with the battery having a coating on its negative electrode active material. This invention provides a non-aqueous electrolyte secondary battery comprising a positive electrode that has a positive electrode active material layer comprising a positive electrode active material, a negative electrode that has a negative electrode active material layer comprising a negative electrode active material, and a non-aqueous electrolyte. The negative electrode active material has a coating. The coating comprises an oxalato complex-derived component and an N-methyl-2-pyrrolidone-derived component. The non-aqueous electrolyte secondary battery internally comprises tungsten. The tungsten content per unit capacity of the non-aqueous electrolyte secondary battery is 0.0048 g/Ah to 0.0078 g/Ah.
Public/Granted literature
- US20160190595A1 NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY Public/Granted day:2016-06-30
Information query