Electrolyte solution and lithium ion battery

US10930976B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10930976-B2
Application numberUS-201916294334-A
CountryUS
Kind codeB2
Filing dateMar 6, 2019
Priority dateMar 16, 2018
Publication dateFeb 23, 2021
Grant dateFeb 23, 2021

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An electrolyte solution is used for a lithium ion battery. The electrolyte solution contains at least a solvent and lithium salt. The solvent contains at least methoxymethyl formate.

First claim

Opening claim text (preview).

What is claimed is: 1. An electrolyte solution for a lithium ion battery, the electrolytic solution comprising: a solvent; and lithium salt, the solvent containing at least 40 vol % methoxymethyl formate. 2. The electrolyte solution according to claim 1 , wherein the solvent contains at least 60 vol % of methoxymethyl formate. 3. The electrolyte solution according to claim 1 , wherein the solvent contains at least 80 vol % of methoxymethyl formate. 4. A lithium ion battery comprising at least the electrolyte solution according to claim 1 . 5. The electrolyte solution according to claim 1 , wherein the solvent contains at least 60 vol % of methoxymethyl formate and a remainder of the solvent consists of a chain carbonate. 6. The electrolyte solution according to claim 1 , wherein the solvent contains at least 60 vol % of methoxymethyl formate and a remainder of the solvent consists of a chain carbonate and a cyclic carbonate. 7. The electrolyte solution according to claim 1 , wherein the solvent contains at least 60 vol % of methoxymethyl formate and a remainder of the solvent consists of a cyclic carbonate. 8. The electrolyte solution according to claim 1 , wherein the solvent contains at least 80 vol % of methoxymethyl formate and a remainder of the solvent consists of a chain carbonate. 9. The electrolyte solution according to claim 1 , wherein the solvent contains at least 80 vol % of methoxymethyl formate and a remainder of the solvent consists of a chain carbonate and a cyclic carbonate. 10. The electrolyte solution according to claim 1 , wherein the solvent contains at least 80 vol % of methoxymethyl formate and a remainder of the solvent consists of a cyclic carbonate. 11. The electrolyte solution according to claim 1 , wherein a remainder of the solvent consists of a chain carbonate. 12. The electrolyte solution according to claim 1 , wherein a remainder of the solvent consists of a chain carbonate and a cyclic carbonate. 13. The electrolyte solution according to claim 1 , wherein a remainder of the solvent consists of a cyclic carbonate.

Assignees

Inventors

Classifications

  • characterised by the solvent · CPC title

  • characterised by the solvents · CPC title

  • Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

  • Mixture of solvents · CPC title

  • Energy storage using batteries · CPC title

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Frequently asked questions

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What does patent US10930976B2 cover?
An electrolyte solution is used for a lithium ion battery. The electrolyte solution contains at least a solvent and lithium salt. The solvent contains at least methoxymethyl formate.
Who is the assignee on this patent?
Toyota Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M10/0569. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Feb 23 2021 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).