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Charge control method, charge control apparatus, and battery-mounted equipment
US2023299370A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023299370-A1 |
| Application number | US-202217822752-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 26, 2022 |
| Priority date | Mar 17, 2022 |
| Publication date | Sep 21, 2023 |
| Grant date | — |
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Abstract
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In general, according to one embodiment, a charge control method includes acquiring a measured temperature of a lithium ion battery, acquiring a threshold value for stopping charging of the lithium ion battery according to the measured temperature of the lithium ion battery based on a relationship between a cycle life and a charging capacity of the lithium ion battery for each temperature of the lithium ion battery, and, charging the lithium ion battery based on the threshold value.
First claim
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What is claimed is: 1 . A charge control method comprising: acquiring a measured temperature of a lithium ion battery; acquiring a threshold value for stopping charging of the lithium ion battery according to the measured temperature of the lithium ion battery based on a relationship between a cycle life and a charging capacity of the lithium ion battery for each temperature of the lithium ion battery; and charging the lithium ion battery based on the threshold value. 2 . The charge control method according to claim 1 , wherein the lithium ion battery includes a negative electrode using an oxide containing niobium as an active material. 3 . The charge control method according to claim 1 , wherein the threshold value is a threshold value of the charging capacity of the lithium ion battery. 4 . The charge control method according to claim 1 , wherein the threshold value is a threshold value of a charging voltage of the lithium ion battery. 5 . The charge control method according to claim 1 , wherein the acquiring a threshold value includes acquiring the threshold value that satisfies a cycle life condition requested, based on the relationship between the cycle life and the charging capacity of the lithium ion battery for each temperature of the lithium ion battery. 6 . The charge control method according to claim 5 , further comprising accepting the request for the cycle life condition by an operation of a user. 7 . The charge control method according to claim 1 , wherein the acquiring a threshold value includes acquiring the threshold value that satisfies a charging capacity condition requested, based on the relationship between the cycle life and the charging capacity of the lithium ion battery for each temperature of the lithium ion battery. 8 . The charge control method according to claim 7 , further comprising accepting the request for the charging capacity condition by an operation of a user. 9 . The charge control method according to claim 1 , wherein the lithium ion battery includes a plurality of battery cells, and the acquiring a measured temperature of the lithium ion battery includes acquiring a highest temperature among measured temperatures of the battery cells. 10 . A charge control apparatus comprising a controller configured to: acquire a measured temperature of a lithium ion battery; acquire a threshold value for stopping charging of the lithium ion battery according to the measured temperature of the lithium ion battery, based on a relationship between a cycle life and a charging capacity of the lithium ion battery for each temperature of the lithium ion battery; and charge the lithium ion battery based on the threshold value. 11 . Battery-mounted equipment comprising the charge control apparatus according to claim 10 .
Assignees
Inventors
Classifications
the charge cycle being controlled or terminated in response to non-electric parameters · CPC title
in response to battery voltage · CPC title
with prioritisation of loads or sources · CPC title
Control of state of health [SOH] · CPC title
Control of state of charge [SOC] · CPC title
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Frequently asked questions
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- What does patent US2023299370A1 cover?
- In general, according to one embodiment, a charge control method includes acquiring a measured temperature of a lithium ion battery, acquiring a threshold value for stopping charging of the lithium ion battery according to the measured temperature of the lithium ion battery based on a relationship between a cycle life and a charging capacity of the lithium ion battery for each temperature of th…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification H02J7/977. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 21 2023 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).