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US-2015377975-A1 · Dec 31, 2015 · US
Inspection method for all-solid secondary battery and manufacturing method of all-solid secondary battery utilizing the inspection method
US10241155B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10241155-B2 |
| Application number | US-201615211754-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 15, 2016 |
| Priority date | Jul 22, 2015 |
| Publication date | Mar 26, 2019 |
| Grant date | Mar 26, 2019 |
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Abstract
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A method for inspecting a constituent unit cell to be stacked in an all-solid secondary battery of the present disclosure includes (A) measuring an open-circuit voltage between the positive electrode and the negative electrode of a constituent unit cell before a short-circuiting step is performed, (B) temporarily short-circuiting the positive electrode and the negative electrode of the constituent unit cell, (C) measuring an open-circuit voltage between the positive electrode and the negative electrode of the constituent unit cell after a given time has elapsed since the end of step (B), and (D) judging the constituent unit cell to be unusable when the open-circuit voltage measured in step (C) is less than a threshold value. A method for manufacturing an all-solid secondary battery of the present disclosure includes stacking a plurality of constituent unit cells excluding constituent unit cells judged to be unusable by the above inspection method.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for inspecting a constituent unit cell to be stacked in an all-solid secondary battery before forming said all-solid secondary battery, comprising: (A) measuring an open-circuit voltage between the positive electrode and the negative electrode of said constituent unit cell before a short-circuiting step is performed, (B) temporarily short-circuiting the positive electrode and the negative electrode of said constituent unit cell, (C) measuring an open-circuit voltage between the positive electrode and the negative electrode of said constituent unit cell after a given time has elapsed since the end of step (B), and (D) judging said constituent unit cell to be unusable when said open-circuit voltage measured in step (C) is less than a threshold value. 2. The method according to claim 1 , wherein the electrolyte of said all-solid secondary battery is a sulfide solid electrolyte. 3. A method for manufacturing an all-solid secondary battery, comprising stacking a plurality of constituent unit cells excluding constituent unit cells judged to be unusable by the inspection method according to claim 1 . 4. The method according to claim 1 , wherein the threshold value is based on the open-circuit voltage measured in step (A).
Assignees
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Classifications
Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title
Physics · mapped topic
Physics · mapped topic
Solid materials · CPC title
Construction or manufacture · CPC title
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- What does patent US10241155B2 cover?
- A method for inspecting a constituent unit cell to be stacked in an all-solid secondary battery of the present disclosure includes (A) measuring an open-circuit voltage between the positive electrode and the negative electrode of a constituent unit cell before a short-circuiting step is performed, (B) temporarily short-circuiting the positive electrode and the negative electrode of the constitu…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01R31/3627. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 26 2019 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).