Title:
BISSULFONATE COMPOUND, PREPARATION METHOD THEREFOR, ELECTROLYTE SOLUTION AND ENERGY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/057597
Kind Code:
A1
Abstract:
Provided are a bissulfonate compound, a preparation method therefor, an electrolytic solution and an energy storage device. The bissulfonate compound has a structure of (I) and is applied as an additive to an energy storage device, so that a stable SEI film can be formed on a surface of a negative electrode of the energy storage device, and the decomposition of a solvent in the electrolytic solution can be suppressed. As the stable SEI film can be formed on the surface of the negative electrode, lithium ions can be smoothly embedded and disembedded at a low temperature, thereby improving the low-temperature performance of the energy storage device. Furthermore, a sulfonate group in the bissulfonate compound can coordinate with transition metal ions to form a complex, so that the surface of the positive electrode is passivated, the dissolution of the metal ions of the positive electrode is suppressed, and the decomposition effect of the solvent by an active substance in a high oxidation state is reduced, thereby improving the electrochemical performance of the energy storage device under a high temperature condition. In an energy storage device, the bissulfonate compound can inhibit the increase of the direct current internal resistance, and improve the high temperature performance and the low-temperature performance of the energy storage device.
Inventors:
CAO GEJIN (CN)
FAN WEIZHEN (CN)
FAN CHAOJUN (CN)
XU LEI (CN)
XIN YONG (CN)
ZHAO JINGWEI (CN)
FAN WEIZHEN (CN)
FAN CHAOJUN (CN)
XU LEI (CN)
XIN YONG (CN)
ZHAO JINGWEI (CN)
Application Number:
PCT/CN2020/115937
Publication Date:
April 01, 2021
Filing Date:
September 17, 2020
Export Citation:
Assignee:
GUANGZHOU TINCI MATERIALS TECH CO LTD (CN)
International Classes:
C07C303/28; C07C309/65; H01M10/0567
Foreign References:
| CN110668978A | 2020-01-10 | |||
| JP2009140921A | 2009-06-25 | |||
| CN102484280A | 2012-05-30 | |||
| US3346612A | 1967-10-10 | |||
| CN106467606A | 2017-03-01 |
Other References:
ABE KOJI, COLERA MANUEL, SHIMAMOTO KEI, KONDO MASAHIDE, MIYOSHI KAZUHIRO: "Functional Electrolytes:Recent Advances in Development of Additives for Resistance Reduction", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 161, no. 6, 17 April 2014 (2014-04-17), pages A863 - A870, XP055796500, ISSN: 0013-4651, DOI: 10.1149/2.086405jes
DATABASE REGISTRY 27 April 2016 (2016-04-27), ANONYMOUS: "3,5-Piperidinediol, 3,5-dimethanesulfonate (CA INDEX NAME)", XP055796526, retrieved from STN Database accession no. 1899045-61-4
DATABASE REGISTRY 10 June 2013 (2013-06-10), ANONYMOUS: "1-Propanesulfonic acid, 1,1'-(3,4-thiophenediyl) ester (CA INDEX NAME)", XP055796523, retrieved from STN Database accession no. 1436431-87-6
DATABASE REGISTRY 15 February 2012 (2012-02-15), ANONYMOUS: "Pentitol, 1,5-anhydro-2-deoxy-, 3,4-dimethanesulfonate (CA INDEX NAME)", XP055796520, retrieved from STN Database accession no. 1356835-23-8
DATABASE REGISTRY 15 August 2010 (2010-08-15), ANONYMOUS: "D-erythro-Pentitol, 1,5-anhydro-2-deoxy-, 3,4-bis(1,1,1-trifluoromethanesulfonate) (CA INDEX NAME)", XP055796511, retrieved from STN Database accession no. 1236185-84-4
See also references of EP 4043433A4
DATABASE REGISTRY 27 April 2016 (2016-04-27), ANONYMOUS: "3,5-Piperidinediol, 3,5-dimethanesulfonate (CA INDEX NAME)", XP055796526, retrieved from STN Database accession no. 1899045-61-4
DATABASE REGISTRY 10 June 2013 (2013-06-10), ANONYMOUS: "1-Propanesulfonic acid, 1,1'-(3,4-thiophenediyl) ester (CA INDEX NAME)", XP055796523, retrieved from STN Database accession no. 1436431-87-6
DATABASE REGISTRY 15 February 2012 (2012-02-15), ANONYMOUS: "Pentitol, 1,5-anhydro-2-deoxy-, 3,4-dimethanesulfonate (CA INDEX NAME)", XP055796520, retrieved from STN Database accession no. 1356835-23-8
DATABASE REGISTRY 15 August 2010 (2010-08-15), ANONYMOUS: "D-erythro-Pentitol, 1,5-anhydro-2-deoxy-, 3,4-bis(1,1,1-trifluoromethanesulfonate) (CA INDEX NAME)", XP055796511, retrieved from STN Database accession no. 1236185-84-4
See also references of EP 4043433A4
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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