LITHIUM ION SECONDARY BATTERY AND ELECTROLYTE SOLUTION THEREOF
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United States of America Patent
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N/A
Issued Date -
Aug 27, 2015
app pub date -
May 28, 2014
filing date -
Feb 21, 2014
priority date (Note) -
Published
status (Latency Note)
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Abstract
The present disclosure provides a lithium ion secondary battery and electrolyte solution thereof. The electrolyte solution of the lithium ion secondary battery includes a nonaqueous organic solvent, and a lithium salt dissolved in the nonaqueous organic solvent. The nonaqueous organic solvent includes a dicyano ester compound of a structure shown by Formula I, Formula II, or Formula III. Formula I represents dicyano carbonate ester compounds, Formula II represents dicyano sulfite ester compounds, Formula III represents dicyano sulfate ester compounds, and the value n is an integer between 1 and 4. The lithium ion secondary battery according to the present disclosure includes the aforementioned electrolyte solution. At a working voltage of 4.3 V or higher, the lithium ion secondary battery according to the present disclosure can effectively suppress the oxidation of the electrolyte solution and improve the storage performance of the lithium ion secondary battery at high temperature.
First Claim
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Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| CN | B | CN103779604 | Feb 21, 2014 |
| JP | B2 | JP5890860 | May 28, 2014 |
International Classification(s)
- 2014 Application Filing Year
- H01M Class
- 4927 Applications Filed
- 4171 Patents Issued To-Date
- 84.66 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- H01M Class
- 12.12 % this patent is cited more than
- 10 Age