Preparation of imides containing a fluorosulfonyl group
US-2017047607-A1 · Feb 16, 2017 · US
Salts for multivalent ion batteries
US10680285B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10680285-B2 |
| Application number | US-201816025676-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 2, 2018 |
| Priority date | Nov 13, 2015 |
| Publication date | Jun 9, 2020 |
| Grant date | Jun 9, 2020 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Methods for preparing electrolyte salts for alkaline earth metal-ion batteries (e.g., calcium and magnesium ion batteries) are described. The electrolyte salts comprise alkaline earth metal (e.g., Mg or Ca) salts of 3,4-dicyano-2-trifluoromethylimidazole (TDI). The methods comprise contacting TDI with an alkaline earth metal bis(trifluoroacetate) salt in trifluoroacetic acid.
First claim
Opening claim text (preview).
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A method for preparing an alkaline earth metal salt of 3,4-dicyano-2-trifluoromethylimidazole (TDI) useful as an electrolyte salt for an alkaline earth metal-ion battery, the method comprising: contacting TDI with a solution containing about 0.5 molar equivalents of an alkaline earth metal bis-trifluoroacetate salt of the formula (CF 3 CO 2 ) 2 M, dissolved in trifluoroacetic acid to form a TDI salt of formula: wherein M is an alkaline earth metal; and recovering the TDI salt. 2. The method of claim 1 , wherein M is Mg. 3. The method of claim 1 , wherein M is Ca. 4. The method of claim 1 , wherein salt of the formula (CF 3 CO 2 ) 2 M, is dissolved in trifluoroacetic acid at a concentration in the range of 0.05 to about 2 molar. 5. The method of claim 4 , wherein M is Mg ion. 6. The method of claim 4 , wherein M is Ca ion. 7. The method of claim 1 , wherein the step of recovering the TDI salt comprises filtration or evaporation of trifluoroacetic acid solvent. 8. A method for preparing an alkaline earth metal salt of 3,4-dicyano-2-trifluoromethylimidazole (TDI) useful as an electrolyte salt for an alkaline earth metal-ion battery, the method comprising: contacting TDI with a solution containing about 0.45 to about 0.75 molar equivalents of an alkaline earth metal bis-trifluoroacetate salt of the formula (CF 3 CO 2 ) 2 M, dissolved in trifluoroacetic acid to form a TDI salt of formula: wherein M is an alkaline earth metal; and recovering the TDI salt. 9. The method of claim 8 , wherein M is Mg. 10. The method of claim 8 , wherein M is Ca. 11. The method of claim 8 , wherein salt of the formula (CF 3 CO 2 ) 2 M, is dissolved in trifluoroacetic acid at a concentration in the range of 0.05 to about 2 molar. 12. The method of claim 11 , wherein M is Mg ion. 13. The method of claim 11 , wherein M is Ca ion. 14. The method of claim 8 , wherein the step of recovering the TDI salt comprises filtration or evaporation of trifluoroacetic acid solvent.
Assignees
Inventors
Classifications
with hydrocarbon radicals, substituted by halogen atoms, attached to other ring members · CPC title
containing one or more sulfur atoms · CPC title
Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium · CPC title
containing also one or more oxygen atoms, e.g. nitrosyl halides · CPC title
characterised by the solvents · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10680285B2 cover?
- Methods for preparing electrolyte salts for alkaline earth metal-ion batteries (e.g., calcium and magnesium ion batteries) are described. The electrolyte salts comprise alkaline earth metal (e.g., Mg or Ca) salts of 3,4-dicyano-2-trifluoromethylimidazole (TDI). The methods comprise contacting TDI with an alkaline earth metal bis(trifluoroacetate) salt in trifluoroacetic acid.
- Who is the assignee on this patent?
- Uchicago Argonne Llc
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0568. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 09 2020 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).