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Title:
NONAQUEOUS SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2017/038628
Kind Code:
A1
Abstract:
Provided are: a nonaqueous secondary battery having excellent charge and discharge characteristics with a large current; and a method for manufacturing this nonaqueous secondary battery. A nonaqueous secondary battery according to the present invention is characterized by being provided with: a positive electrode that has a positive electrode mixture layer, which contains a positive electrode active material, a binder and a conductive assistant, on one surface or both surfaces of a collector; a negative electrode that has a negative electrode mixture layer, which contains a negative electrode active material and a binder, on one surface or both surfaces of a collector; a separator; and a nonaqueous electrolyte solution that contains a lithium salt and an organic solvent. This nonaqueous secondary battery is also characterized in that the positive electrode mixture layer contains an olivine-type compound as the positive electrode active material, while containing, as the binder, a polymer (A) that has a unit represented by general formula (1) in each molecule. (In general formula (1), R1 represents H or a methyl group; and R2 represents an alkyl group having 1-18 carbon atoms.)

Inventors:
KOJIMA, Eri (C/O HITACH MAXELL LTD, 1-88, Ushitora 1-chome, Ibaraki-sh, Osaka 67, 〒5678567, JP)
KAMINE, Hirokazu (C/O HITACH MAXELL LTD, 1-88, Ushitora 1-chome, Ibaraki-sh, Osaka 67, 〒5678567, JP)
UEDA, Atsushi (C/O HITACH MAXELL LTD, 1-88, Ushitora 1-chome, Ibaraki-sh, Osaka 67, 〒5678567, JP)
Application Number:
JP2016/074829
Publication Date:
March 09, 2017
Filing Date:
August 25, 2016
Export Citation:
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Assignee:
HITACHI MAXELL, LTD. (1-88, Ushitora 1-chome Ibaraki-sh, Osaka 67, 〒5678567, JP)
International Classes:
H01M10/0525; C08F2/44; C08F259/06; H01M4/133; H01M4/58; H01M4/587; H01M4/62; H01M4/66; H01M4/70; H01M10/0566; H01M10/0567; H01M10/0569
Domestic Patent References:
2015-02-26
Foreign References:
JP2012133895A2012-07-12
JP2010272272A2010-12-02
JP2010205430A2010-09-16
JP2010212041A2010-09-24
JP2013187034A2013-09-19
JP2005222829A2005-08-18
JP2012216518A2012-11-08
JP2014139903A2014-07-31
JP2001319685A2001-11-16
JP2004327279A2004-11-18
Attorney, Agent or Firm:
MIWA, Tetsuo et al. (Kohken Bldg. #501, 2-34-4 Higashi-mikuni, Yodogawa-ku, Osaka-sh, Osaka 02, 〒5320002, JP)
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