System and method for charge protection of a lithium-ion battery

US2020020991A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2020020991-A1
Application numberUS-201716315062-A
CountryUS
Kind codeA1
Filing dateMar 31, 2017
Priority dateMar 31, 2017
Publication dateJan 16, 2020
Grant date

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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.

A method for controlling a charge process of a solid-state battery having a sulfur-based positive electrode is provided. The method includes monitoring the solid-state battery for production of sulfur fluid, and terminating a flow of charge current when sulfur fluid is detected.

First claim

Opening claim text (preview).

1 . A method for controlling a charge process of a solid-state battery having a sulfur-based positive electrode, the method comprising: monitoring the solid-state battery for production of sulfur fluid; and terminating a flow of charge current when sulfur fluid is detected. 2 . The method according to claim 1 , wherein the monitoring is performed by a sulfur fluid sensor. 3 . The method according to claim 1 , wherein the monitoring comprises measuring a resistance of a copper wire within a case of the solid-state battery. 4 . The method according to claim 3 , wherein when the resistance of the copper wire increases more than a predetermined amount, the presence of sulfur fluid is detected. 5 . A battery charger for a solid state battery having a sulfur-based positive electrode, the battery charger comprising: a current providing section configured to provide current to the solid-state battery; a monitoring section configured to monitor the solid-state battery for production of sulfur fluid; and a controller configured to terminate a flow of current to the solid-state battery when production of fluidized sulfur is detected. 6 . Use of a battery charger according to claim 5 , for charging a solid-state battery comprising a sulfur-based positive electrode and a sulfur fluid sensor, the sulfur fluid sensor preferably comprising a copper wire of predetermined resistance. 7 . The method according to claim 2 , wherein the monitoring comprises measuring a resistance of a copper wire within a case of the solid-state battery.

Assignees

Inventors

Classifications

  • H01M10/448Primary

    End of discharge regulating measures · CPC title

  • Solid materials · CPC title

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

  • Solid electrolytes · CPC title

  • of elements or alloys · CPC title

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Frequently asked questions

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What does patent US2020020991A1 cover?
A method for controlling a charge process of a solid-state battery having a sulfur-based positive electrode is provided. The method includes monitoring the solid-state battery for production of sulfur fluid, and terminating a flow of charge current when sulfur fluid is detected.
Who is the assignee on this patent?
Toyota Motor Europe
What technology area does this patent fall under?
Primary CPC classification H01M10/448. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Jan 16 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).