NOVEL LITHIUM TITANATE, METHOD FOR PRODUCING SAME, ELECTRODE ACTIVE MATERIAL CONTAINING THE LITHIUM TITANATE, AND ELECTRICITY STORAGE DEVICE USING THE ELECTRODE ACTIVE MATERIAL

Disclosed are: a novel lithium titanate; and a method for producing the novel lithium titanate. Specifically disclosed is a compound that has a chemical composition represented by general formula (1): Li2Ti18O37, or the compound additionally containing copper and/or tin. The compound represented by...

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Bibliographische Detailangaben
Hauptverfasser:	SUITA, TOKUO, SOTOKAWA, TOMOYUKI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	Disclosed are: a novel lithium titanate; and a method for producing the novel lithium titanate. Specifically disclosed is a compound that has a chemical composition represented by general formula (1): Li2Ti18O37, or the compound additionally containing copper and/or tin. The compound represented by general formula (1) is synthesized by causing a lithium compound to react with a compound that has a chemical composition represented by general formula (2): H2Ti12O25 in a liquid phase so that some of hydrogen ions contained in the compound represented by general formula (2) are substituted by lithium ions, and then carrying out solid-liquid separation and thermal dehydration. An electricity storage device which uses, as a constituent member, an electrode that contains an electrode active material produced from the compound represented by general formula (1) has excellent charge and discharge cycle characteristics, especially excellent charge and discharge cycle characteristics at high temperatures, and is expected to have high capacity.