Method for producing anode active material for secondary battery, anode active material for secondary battery, method for producing anode for secondary battery, anode for secondary battery, and secondary battery
US-2015287983-A1 · Oct 8, 2015 · US
Titanium oxide compound, and electrode and lithium ion secondary battery each manufactured using same
US9972840B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9972840-B2 |
| Application number | US-201414774315-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 24, 2014 |
| Priority date | Mar 29, 2013 |
| Publication date | May 15, 2018 |
| Grant date | May 15, 2018 |
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Abstract
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A titanium oxide compound according to the present invention comprises bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, and contains calcium and/or silicon. The titanium oxide compound contains 0.005 to 2.5 mass % inclusive of calcium or 0.15 to 0.55 mass % inclusive of silicon, or contains 0.005 to 1.2 mass % inclusive of calcium and 0.15 to 0.2 mass % inclusive of silicon, or contains 0.005 to 0.1 mass % inclusive of calcium and 0.15 to 0.5 mass % inclusive of silicon.
First claim
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The invention claimed is: 1. A titanium oxide compound comprising bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, wherein the titanium oxide contains 0.15 to 0.55 mass % inclusive of silicon. 2. The titanium oxide compound according to claim 1 , wherein at least a part of the silicon exists as a solid solution in titanium oxide crystals. 3. The titanium oxide compound according to claim 1 , wherein pore volume of the titanium oxide compound is 0.01 to 0.5 mL/g, and specific surface area thereof is 1.0 to 20 m 2 /g. 4. An electrode using the titanium oxide compound according to claim 1 as electrode active material. 5. A lithium ion secondary battery using the electrode according to claim 4 as positive electrode or negative electrode. 6. A titanium oxide compound comprising bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, wherein the titanium oxide contains 0.005 to 1.2 mass % inclusive of calcium and 0.15 to 0.2 mass % inclusive of silicon, or contains 0.005 to 0.1 mass % inclusive of calcium and 0.15 to 0.5 mass % inclusive of silicon. 7. The titanium oxide compound according to claim 6 , wherein at least a part of the calcium and/or at least a part of the silicon exists as a solid solution in titanium oxide crystals. 8. The titanium oxide compound according to claim 6 , wherein pore volume of the titanium oxide compound is 0.01 to 0.5 mL/g, and specific surface area thereof is 1.0 to 20 m 2 /g. 9. An electrode using the titanium oxide compound according to claim 6 as electrode active material. 10. A lithium ion secondary battery using the electrode according to claim 9 as positive electrode or negative electrode.
Assignees
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Classifications
by d-values or two theta-values, e.g. as X-ray diagram · CPC title
Surface area · CPC title
containing elements as dopants · CPC title
Composites · CPC title
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
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- What does patent US9972840B2 cover?
- A titanium oxide compound according to the present invention comprises bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, and contains calcium and/or silicon. The titanium oxide compound contains 0.005 to 2.5 mass % inclusive of calcium or 0.15 to 0.55 mass % inclusive of silicon, or contains 0.005 to 1.2 mass % inclusive of calcium and 0.15 to 0.2 mass …
- Who is the assignee on this patent?
- Kubota Kk
- What technology area does this patent fall under?
- Primary CPC classification C01G23/005. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 15 2018 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).