- Patent Title: Carbonaceous material for non-aqueous electrolyte secondary battery, negative electrode for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte
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Application No.: US15770767Application Date: 2016-10-27
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Publication No.: US11355755B2Publication Date: 2022-06-07
- Inventor: Tomohiro Kawakami , Takafumi Izawa , Taketoshi Okuno , Jun-Sang Cho , Hideharu Iwasaki
- Applicant: KURARAY CO., LTD.
- Applicant Address: JP Kurashiki
- Assignee: KURARAY CO., LTD.
- Current Assignee: KURARAY CO., LTD.
- Current Assignee Address: JP Kurashiki
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2015-214336 20151030
- International Application: PCT/JP2016/081927 WO 20161027
- International Announcement: WO2017/073686 WO 20170504
- Main IPC: H01M4/583
- IPC: H01M4/583 ; H01M4/587 ; C01B32/05 ; H01M4/133 ; H01M10/0525 ; H01M4/02

Abstract:
A carbonaceous material for a non-aqueous electrolyte secondary battery, having an average interplanar spacing d002 of the (002) plane within a range of 0.36 to 0.42 nm calculated by using the Bragg equation according to a wide-angle X-ray diffraction method, a specific surface area within a range of 8 to 30 m2/g obtained by a nitrogen adsorption BET three-point method, a nitrogen element content of 0.5 mass % or less, an oxygen element content of 0.3 mass % or less, and an average particle diameter of 1 to 2.8 μm according to a laser scattering method.
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