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Slurry composition for negative electrodes of lithium ion secondary batteries, negative electrode for lithium ion secondary batteries, and lithium ion secondary battery
US2016260973A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016260973-A1 |
| Application number | US-201415030665-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 23, 2014 |
| Priority date | Oct 28, 2013 |
| Publication date | Sep 8, 2016 |
| Grant date | — |
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Abstract
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A slurry composition for a negative electrode of a lithium ion secondary battery, the slurry composition including 100 parts by weight of an active material (A) containing 8% by weight or higher of a non-carbon negative electrode active material, 0.5 to 10 parts by weight of a water-soluble polymer (B) containing a carboxy group, 0.01 to 0.5 parts by weight of a particulate polymer (C), and water; a negative electrode for a lithium ion secondary battery including a negative electrode material layer obtained therefrom; and a lithium ion secondary battery having the same.
First claim
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1 . A slurry composition for a negative electrode of a lithium ion secondary battery, the slurry composition comprising: 100 parts by weight of an active material (A) containing 8% by weight or higher of a non-carbon negative electrode active material; 0.5 to 10 parts by weight of a water-soluble polymer (B) containing a carboxy group; 0.01 to 0.5 parts by weight of a particulate polymer (C); and water. 2 . The slurry composition according to claim 1 , wherein the non-carbon negative electrode active material contained in the active material (A) is a silicon active material. 3 . The slurry composition according to claim 1 , wherein the water-soluble polymer (B) is selected from the group consisting of carboxymethyl cellulose, a polycarboxylic acid, salts thereof, and mixtures thereof. 4 . The slurry composition according to claim 1 , wherein the particulate polymer (C) includes an aliphatic conjugated diene monomer unit and an aromatic vinyl monomer unit. 5 . A negative electrode for a lithium ion secondary battery, the negative electrode comprising a negative electrode material layer obtained from the slurry composition according to claim 1 . 6 . A lithium ion secondary battery, comprising: the negative electrode for a lithium ion secondary battery according to claim 5 ; a positive electrode; an electrolytic solution; and a separator.
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Classifications
characterised by the solutes · CPC title
Silicon or alloys based on silicon · CPC title
of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title
of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title
as mixtures · CPC title
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- What does patent US2016260973A1 cover?
- A slurry composition for a negative electrode of a lithium ion secondary battery, the slurry composition including 100 parts by weight of an active material (A) containing 8% by weight or higher of a non-carbon negative electrode active material, 0.5 to 10 parts by weight of a water-soluble polymer (B) containing a carboxy group, 0.01 to 0.5 parts by weight of a particulate polymer (C), and wat…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/0404. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 08 2016 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).