Battery module, battery pack comprising same, and vehicle
US-12034140-B2 · Jul 9, 2024 · US
Capacity recovery method and capacity recovery system for secondary battery
US2018151926A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018151926-A1 |
| Application number | US-201715819886-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 21, 2017 |
| Priority date | Nov 30, 2016 |
| Publication date | May 31, 2018 |
| Grant date | — |
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- Title
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Abstract
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In a capacity recovery method for a secondary battery including a negative electrode active material layer having a facing portion that faces a positive electrode active material layer and a non-facing portion that does not face the positive electrode active material layer, the secondary battery is retained in a state where temperature of the non-facing portion is higher than temperature of the facing portion for a prescribed time.
First claim
Opening claim text (preview).
What is claimed is: 1 . A capacity recovery method for a secondary battery, the secondary battery including a positive electrode having a positive electrode active material layer, a negative electrode having a negative electrode active material layer, and an electrolyte, the negative electrode active material layer having a facing portion that faces the positive electrode active material layer and a non-facing portion that does not face the positive electrode active material layer, the capacity recovery method comprising: retaining the secondary battery in a state where temperature of the non-facing portion is higher than temperature of the facing portion for a prescribed time. 2 . The capacity recovery method according to claim 1 , wherein when the temperature of the non-facing portion is equal to or below the temperature of the facing portion, the non-facing portion is heated. 3 . The capacity recovery method according to claim 1 , wherein when the temperature of the non-facing portion is equal to or below the temperature of the facing portion, the facing portion is cooled. 4 . The capacity recovery method according to claim 1 , wherein before the secondary battery is retained for the prescribed time, the secondary battery is discharged to reduce a state of charge or an SOC of the secondary battery to 0% or below. 5 . A capacity recovery system for a secondary battery, comprising: a secondary battery including a positive electrode having a positive electrode active material layer, a negative electrode having a negative electrode active material layer, and an electrolyte, the negative electrode active material layer having a facing portion that faces the positive electrode active material layer and a non-facing portion that does not face the positive electrode active material layer: a first temperature sensor that detects temperature of the facing portion; a second temperature sensor that detects temperature of the non-facing portion; a thermoregulator that regulates the temperature of at least one of the facing portion and the non-facing portion, when the temperature of the non-facing portion is equal to or below the temperature of the facing portion; and a controller that controls the secondary battery, the first temperature sensor, the second temperature sensor, and the thermoregulator, wherein the controller is configured to retain the secondary battery in a state where the temperature of the non-facing portion is higher than the temperature of the facing portion for a prescribed time.
Assignees
Inventors
Classifications
- H01M10/617Primary
for achieving uniformity or desired distribution of temperature · CPC title
- H01M10/44Primary
Methods for charging or discharging (circuits for charging H02J7/00) · CPC title
Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title
Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing · CPC title
Heating or keeping warm · CPC title
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- What does patent US2018151926A1 cover?
- In a capacity recovery method for a secondary battery including a negative electrode active material layer having a facing portion that faces a positive electrode active material layer and a non-facing portion that does not face the positive electrode active material layer, the secondary battery is retained in a state where temperature of the non-facing portion is higher than temperature of the…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/617. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 31 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).