Method of evaluating power storage device, method of manufacturing power storage device, and test system
US-11650260-B2 · May 16, 2023 · US
Method of evaluating power storage device, method of manufacturing power storage device, and test system
US12253566B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12253566-B2 |
| Application number | US-202318295517-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 4, 2023 |
| Priority date | Nov 29, 2017 |
| Publication date | Mar 18, 2025 |
| Grant date | Mar 18, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of evaluating a power storage device comprising: (a) preparing a power storage device including an electrode assembly that includes a positive electrode and a negative electrode; (b) adjusting a state of charge of the power storage device; (c) selecting the positive electrode or the negative electrode as a reference electrode; (d) performing an operation to insert a conductive rod-shaped member into the electrode assembly while a potential difference between the reference electrode and the rod-shaped member is measured after the state of charge is adjusted; (e) stopping the rod-shaped member such that a short-circuiting stops at the short-circuiting between one layer of the positive electrode and one layer of the negative electrode by monitoring a variation of the potential difference; and (f) evaluating the power storage device by monitoring a state of the power storage device after the short-circuiting.
Assignees
Inventors
Classifications
Charging or discharging for charge maintenance, battery initiation or rejuvenation · CPC title
Arrangements for measuring battery or accumulator variables (for monitoring G01R31/382) · CPC title
Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections (testing of sparking plugs H01T13/58) · CPC title
Testing apparatus · CPC title
Methods for charging or discharging (circuits for charging H02J7/00) · CPC title
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- What does patent US12253566B2 cover?
- A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is …
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01R31/388. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 18 2025 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).