Liquid Electrolyte Composition, and Electrochemical Cell Comprising Said Electrolyte Composition
US-2024347772-A1 · Oct 17, 2024 · US
Non-aqueous electrolyte for secondary battery and non-aqueous electrolyte secondary battery
US8945781B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8945781-B2 |
| Application number | US-52223108-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 5, 2008 |
| Priority date | Feb 20, 2007 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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The present invention provides a non-aqueous electrolyte secondary battery wherein a reaction between a non-aqueous electrolyte and an electrode is suppressed and decrease in battery capacity under high temperature is restricted, so that long time excellent battery characteristics can be obtained. A non-aqueous solvent of the non-aqueous electrolyte contains: chain fluorinated carboxylic acid ester represented by the formula R1-CH 2 —COO—R2 where R1 represents hydrogen or alkyl group and R2 represents alkyl group and the sum of the carbon numbers of R1 and R2 is 3 or less, and in the case that R1 is hydrogen, at least one part of hydrogen in R2 is replaced with fluorine, and, in the case that R1 is alkyl group, at least one part of hydrogen in R1 and/or R2 is replaced with fluorine; and a film forming chemical compound decomposed in the range of +1.0 to 3.0 V based on an equilibrium potential between metal lithium and lithium ion.
First claim
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What is claimed is: 1. A non-aqueous electrolyte for secondary battery comprising a non-aqueous solvent dissolving lithium salt as an electrolyte, wherein said non-aqueous solvent contains: (A) methyl 3,3,3-trifluoropropionate represented by the below formula (1); CF 3 —CH 2 —COO—CH 3 (1) and (B) a film-forming chemical compound decomposed in the range of +1.0 to 3.0 V based on an equilibrium potential between metal lithium and lithium ion; wherein said film-formin…
Assignees
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Classifications
- H01M10/0525Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H01M10/0567Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8945781B2 cover?
- The present invention provides a non-aqueous electrolyte secondary battery wherein a reaction between a non-aqueous electrolyte and an electrode is suppressed and decrease in battery capacity under high temperature is restricted, so that long time excellent battery characteristics can be obtained. A non-aqueous solvent of the non-aqueous electrolyte contains: chain fluorinated carboxylic acid e…
- Who is the assignee on this patent?
- Chiga Takanobu, Saisho Keiji, Mogi Ryo, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).