# US 2014/0154574 A1 · Negative electrode active substance and lithium battery

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- Number: US 2014/0154574 A1
- Document ID: US20140154574A1
- Status: Published application
- Kind: A1
- Application number: 14/086,727
- Filed: 2013-11-21
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Inventors: Kunihiro NOBUHARA
- Web page: https://patentgrep.com/patent/US20140154574A1

## CPC

- H01M 4/483: {for non-aqueous cells (H01M4/485 takes precedence)}
- H01M 4/485: of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence)
- H01M 4/5825: {Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines}
- C01G 47/00: Compounds of rhenium
- C01P 2002/72: by d-values or two theta-values, e.g. as X-ray diagram
- C01P 2006/40: Electric properties
- H01M 10/052: Li-accumulators
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- C01G: COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F (metal hydrides {monoborane, diborane or addition complexes thereof} C01B6/00; salts of oxyacids of halogens C01B11/00; peroxides, salts or peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium, or tellurium C01B19/00; binary compounds of nitrogen with metals C01B21/06; azides C01B21/08; {compounds containing nitrogen, other non-metals and metal C01B21/082}; metal amides C01B21/092; nitrites C01B21/50; {compounds of noble gases C01B23/0005}; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; carbides C01B32/90; compounds containing silicon C01B33/00; compounds containing boron C01B35/00; compounds having molecular sieve properties but not having base-exchange properties C01B37/00; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, C01B39/00; cyanides C01C3/08; salts of cyanamide C01C3/16; thiocyanates C01C3/20)
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A negative electrode active substance for lithium battery is an oxide containing Re at least.

## Claims

### Claim 1

A negative electrode active substance for a lithium battery, wherein the negative electrode active substance is an oxide containing Re at least.

### Claim 2 (depends on 1)

The negative electrode active substance according to claim 1, wherein the oxide is composed of only Re and O.

### Claim 3 (depends on 2)

The negative electrode active substance according to claim 2, wherein the oxide is ReO3.

### Claim 4 (depends on 1)

The negative electrode active substance according to claim 1, wherein the oxide further contains an element or a group capable of serving as a monovalent cation.

### Claim 5 (depends on 4)

The negative electrode active substance according to claim 4, wherein the oxide has an AReO4 crystal phase, where A is the element or the group capable of serving as the monovalent cation.

### Claim 6

Lithium battery comprising:
a positive electrode layer containing a positive electrode active substance;
a negative electrode layer containing a negative electrode active substance; and
an electrolyte layer disposed between the positive electrode layer and the negative electrode layer,
wherein the negative electrode active substance is an oxide containing Re at least.