Title:
POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR NON-AQUEOUS ELECTROLYTIC SECONDARY CELLS, POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTIC SECONDARY CELLS, NON-AQUEOUS ELECTROLYTIC SECONDARY CELL, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR NON-AQUEOUS ELECTROLYTIC SECONDARY CELLS
Document Type and Number:
WIPO Patent Application WO/2018/030148
Kind Code:
A1
Abstract:
A purpose of the present invention is to provide a positive electrode active substance for non-aqueous electrolytic secondary cells that is capable of suppressing a reduction in capacitance restoration rate after storage at a high temperature. The non-aqueous electrolytic secondary cell according to the present invention includes: secondary particles formed by agglomerating primary particles of a lithium-containing transition metal oxide; secondary particles formed by agglomerating primary particles of a rare earth compound; and a magnesium compound. On surfaces of the secondary particles of the lithium-containing transition metal oxide, the secondary particles of the rare earth compound are attached to recesses formed between adjacent primary particles of the lithium-containing transition metal oxide, and are attached to each of the primary particles forming the recesses. The magnesium compound is attached to surfaces of the secondary particles of the lithium-containing transition metal compound.
Inventors:
JITO DAIZO
OGASAWARA TAKESHI
OGASAWARA TAKESHI
Application Number:
PCT/JP2017/026953
Publication Date:
February 15, 2018
Filing Date:
July 26, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M4/485; H01M4/36; H01M4/525
Domestic Patent References:
| WO2015125444A1 | 2015-08-27 | |||
| WO2016031147A1 | 2016-03-03 | |||
| WO2016103591A1 | 2016-06-30 | |||
| WO2015005439A1 | 2015-01-15 | |||
| WO2015136892A1 | 2015-09-17 |
Foreign References:
| JP2009004316A | 2009-01-08 | |||
| JP2008159543A | 2008-07-10 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
Download PDF:
Previous Patent: LINEAR IMAGE SENSOR AND METHOD FOR MANUFACTURING SAME
Next Patent: INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD
Next Patent: INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD