Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/065831
Kind Code:
A1
Abstract:
A lithium ion secondary battery comprising: a positive electrode; a negative electrode that includes a negative electrode active substance having a reaction potential of at least 0.5 V relative to the lithium potential and has an electrochemical capacity per unit area that is no more than the electrochemical capacity per unit area of the positive electrode; and an electrolyte including a solvent, an electrolyte salt, and at least one type out of a diphenyl carbonate compound, an unsaturated cyclic carbonate ester, a first maleic anhydride compound, and a second maleic anhydride compound.
Inventors:
ASAKAWA YUICHIRO (JP)
TSUIKI HIROFUMI (JP)
UENO HIROSHI (JP)
ASSRESAHEGN DASALEGN BIRHANU (CA)
DAIGLE JEAN-CHRISTOPHE (CA)
ZAGHIB KARIM (CA)
TSUIKI HIROFUMI (JP)
UENO HIROSHI (JP)
ASSRESAHEGN DASALEGN BIRHANU (CA)
DAIGLE JEAN-CHRISTOPHE (CA)
ZAGHIB KARIM (CA)
Application Number:
PCT/JP2018/035973
Publication Date:
April 02, 2020
Filing Date:
September 27, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
HYDRO QUEBEC (CA)
HYDRO QUEBEC (CA)
International Classes:
H01M10/0567; H01M4/485; H01M4/58; H01M10/0525
Domestic Patent References:
| WO2015033620A1 | 2015-03-12 | |||
| WO2018116529A1 | 2018-06-28 |
Foreign References:
| JP2011054490A | 2011-03-17 | |||
| JP2004311272A | 2004-11-04 | |||
| JP2000058115A | 2000-02-25 | |||
| JP2011091039A | 2011-05-06 |
Other References:
ZHANG S.S.: "A review on electrolyte additives for lithium-ion batteries", JOURNAL OF POWER SOURCES, vol. 162, 2006, pages 1379 - 94, XP055557116, DOI: 10.1016/j.jpowsour.2006.07.074
See also references of EP 3859860A4
See also references of EP 3859860A4
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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