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Production process of difluorophosphate, nonaqueous electrolytic solution and nonaqueous electrolytic secondary battery
US9028786B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9028786-B2 |
| Application number | US-201113113541-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 23, 2011 |
| Priority date | Dec 2, 2008 |
| Publication date | May 12, 2015 |
| Grant date | May 12, 2015 |
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Abstract
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To provide a technique for simply and easily producing a high-purity difluorophosphate and provide a production process of an electrolytic solution using the obtained difluorophosphate, an electrolytic solution and a secondary battery. A process for producing a difluorophosphate, comprising the following step (1) or (2): (1) reacting (A) at least one member selected from the group consisting of oxoacids, oxoacid anhydrides and oxyhalides of phosphorus with (B) a hexafluorophosphate in the presence of hydrogen fluoride, or (2) reacting at least one halide selected from the group consisting of alkali metal halides, alkaline earth metal halides, aluminum halides and onium halides with difluorophosphoric acid in the presence of a hexafluorophosphate. Also, a nonaqueous electrolytic solution containing the obtained difluorophosphate, and a nonaqueous electrolytic secondary battery containing the nonaqueous electrolytic solution.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for producing a difluorophosphate, comprising: reacting at least one halide selected from the group consisting of an alkali metal halide, an alkaline earth metal halide, an aluminum halide and an onium halide with difluorophosphoric acid in the presence of a hexafluorophosphate at a reaction temperature of from 100° C. to 200° C. 2. The production process of a difluorophosphate as claimed in claim 1 , wherein in said re…
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Cross-Sectional Technologies · mapped topic
- H01M10/052Primary
Electricity · mapped topic
Electricity · mapped topic
- C01B25/455Primary
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
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- What does patent US9028786B2 cover?
- To provide a technique for simply and easily producing a high-purity difluorophosphate and provide a production process of an electrolytic solution using the obtained difluorophosphate, an electrolytic solution and a secondary battery. A process for producing a difluorophosphate, comprising the following step (1) or (2): (1) reacting (A) at least one member selected from the grou…
- Who is the assignee on this patent?
- Nishida Tetsuo, Tomisaki Megumi, Shogami Kazuhiko, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification H01M10/052. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 12 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).