Metal organic framework-derived carbon aerogel, preparation method thereof and application in lithium ion batteries
US-12183924-B2 · Dec 31, 2024 · US
Energy storage device
US2024322119A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024322119-A1 |
| Application number | US-202218578125-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 11, 2022 |
| Priority date | Jul 12, 2021 |
| Publication date | Sep 26, 2024 |
| Grant date | — |
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- Title
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Abstract
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An energy storage device according to one aspect of the present invention includes: a negative electrode including a negative active material layer; and a nonaqueous electrolyte. The negative active material layer contains a negative active material. The negative active material contains natural graphite particles. The natural graphite particles have an internal porosity of 2% or less. A state of charge of the negative active material in a charged state is 0.6 or less.
First claim
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1 . An energy storage device comprising: a negative electrode including a negative active material layer; and a nonaqueous electrolyte, wherein the negative active material layer contains a negative active material, the negative active material contains natural graphite particles, the natural graphite particles have an internal porosity of 2% or less, and a state of charge of the negative active material in a charged state is 0.6 or less. 2 . The energy storage device according to claim 1 , wherein the negative active material layer has a porosity of 40% or more. 3 . The energy storage device according to claim 1 , wherein the energy storage device is used for a power source for a hybrid vehicle and a plug-in hybrid vehicle. 4 . The energy storage device according to claim 1 , wherein the state of charge of the negative active material in the charged state is 0.45 or more. 5 . The energy storage device according to claim 1 , wherein the natural graphite particles have an average particle size of 7 μm or more. 6 . The energy storage device according to claim 1 , wherein the natural graphite particles have a BET specific surface area of 4.5 m 2 /g or less.
Assignees
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Classifications
Batteries in motive systems, e.g. vehicle, ship, plane · CPC title
Negative electrodes · CPC title
Physical characteristics, e.g. porosity, surface area · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Electrodes composed of, or comprising, active material · CPC title
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- What does patent US2024322119A1 cover?
- An energy storage device according to one aspect of the present invention includes: a negative electrode including a negative active material layer; and a nonaqueous electrolyte. The negative active material layer contains a negative active material. The negative active material contains natural graphite particles. The natural graphite particles have an internal porosity of 2% or less. A state …
- Who is the assignee on this patent?
- Gs Yuasa Int Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/133. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 26 2024 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).