Invention Grant
- Patent Title: Nonaqueous electrolyte battery, battery pack and vehicle
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Application No.: US14302176Application Date: 2014-06-11
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Publication No.: US09786909B2Publication Date: 2017-10-10
- Inventor: Hidesato Saruwatari , Hideaki Morishima , Hiroki Inagaki , Norio Takami
- Applicant: Kabushiki Kaisha Toshiba
- Applicant Address: JP Minato-ku
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-085716 20070328
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M4/485 ; H01M4/131 ; H01M4/525 ; B60K1/00 ; H01M4/48 ; H01M10/052 ; H01M10/48 ; H01M4/66

Abstract:
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 μm and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 μm or less to a total pore volume is 20% or more.
Public/Granted literature
- US20140287309A1 NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE Public/Granted day:2014-09-25
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