Title:
ELECTROLYTE SOLUTION FOR ALKALI METAL-SULFUR-BASED SECONDARY BATTERY, AND ALKALI METAL-SULFUR-BASED SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2018/163778
Kind Code:
A1
Abstract:
Provided are the following: an electrolyte solution for an alkali metal-sulfur-based secondary battery, which does not require addition of lithium polysulfide, exhibits excellent cycle performance, and has low resistance during charging and discharging; and an alkali metal-sulfur-based secondary battery. This electrolyte solution for an alkali metal-sulfur-based secondary battery is provided with a positive electrode that includes a composite carbon material that contains a carbon material and a sulfur-containing positive electrode active substance. The electrolyte solution is characterized in that the carbon material has a pore volume ratio (micropore/mesopore) of 1.5 or more, and in containing a fluorinated ether represented by formula (1): R11-(OR12)n11-O-R13. (In the formula, R11 and R13 may be the same as, or different from, each other, and each denote an alkyl group that may have a fluorine atom, but at least one of R11 and R13 has a fluorine atom. R12 is an alkylene group that may have a fluorine atom. n11 is 0, 1 or 2.)
Inventors:
ISHIKAWA MASASHI (JP)
TORII YUYA (JP)
UCHIDA SATOSHI (JP)
YAMAGATA MASAKI (JP)
YAMAZAKI SHIGEAKI (JP)
KINOSHITA SHINICHI (JP)
TORII YUYA (JP)
UCHIDA SATOSHI (JP)
YAMAGATA MASAKI (JP)
YAMAZAKI SHIGEAKI (JP)
KINOSHITA SHINICHI (JP)
Application Number:
PCT/JP2018/005770
Publication Date:
September 13, 2018
Filing Date:
February 19, 2018
Export Citation:
Assignee:
THE SCHOOL CORPORATION KANSAI UNIV (JP)
DAIKIN IND LTD (JP)
DAIKIN IND LTD (JP)
International Classes:
H01M10/0569; H01M4/36; H01M4/38; H01M10/052
Domestic Patent References:
| WO2008096729A1 | 2008-08-14 | |||
| WO2016075916A1 | 2016-05-19 | |||
| WO2015166636A1 | 2015-11-05 |
Foreign References:
| JP2016100094A | 2016-05-30 | |||
| JP2008218387A | 2008-09-18 | |||
| JP2012178339A | 2012-09-13 | |||
| JP2016115417A | 2016-06-23 | |||
| JP2010095390A | 2010-04-30 | |||
| JP2010095390A | 2010-04-30 | |||
| JPS584557B2 | 1983-01-26 | |||
| JP2005108724A | 2005-04-21 | |||
| JP2013225497A | 2013-10-31 |
Other References:
See also references of EP 3609013A4
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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