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LITHIUM MANGANATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
The present invention relates to lithium manganate particles having a primary particle diameter of 1 to 8 µm and forming substantially single-phase particles, which have a composition represented by the following chemical formula: Li 1+x Mn 2-x-y Y1 y O 4 + Y2 in which Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is P and is present in an amount of 0.01 to 0.6 mol% based on Mn; and x and y satisfy 0.03 ¤ x ¤ 0.15 and 0.05 ¤ y ¤ 0.20, respectively, and which lithium manganate particles have a specific surface area of the lithium manganate particles of 0.3 to 0.9 m 2 /g (as measured by BET method); and have an average particle diameter (D 50 ) of the lithium manganate particles of 3 to 10 µm. A positive electrode active substance of a lithium ion secondary battery using the lithium manganate particles of the present invention has a high output and is excellent in high-temperature stability.
LITHIUM MANGANATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
The present invention relates to lithium manganate particles having a primary particle diameter of 1 to 8 µm and forming substantially single-phase particles, which have a composition represented by the following chemical formula: Li 1+x Mn 2-x-y Y1 y O 4 + Y2 in which Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is P and is present in an amount of 0.01 to 0.6 mol% based on Mn; and x and y satisfy 0.03 ¤ x ¤ 0.15 and 0.05 ¤ y ¤ 0.20, respectively, and which lithium manganate particles have a specific surface area of the lithium manganate particles of 0.3 to 0.9 m 2 /g (as measured by BET method); and have an average particle diameter (D 50 ) of the lithium manganate particles of 3 to 10 µm. A positive electrode active substance of a lithium ion secondary battery using the lithium manganate particles of the present invention has a high output and is excellent in high-temperature stability.
LITHIUM MANGANATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
LITHIUM-MANGANAT FÜR EINE SEKUNDÄRBATTERIE MIT WASSERFREIEM ELEKTROLYT, HERSTELLUNGSVERFAHREN DAFÜR UND SEKUNDÄRBATTERIE MIT WASSERFREIEM ELEKTROLYT
MANGANATE DE LITHIUM POUR BATTERIE SECONDAIRE À ÉLECTROLYTE NON AQUEUX, SON PROCÉDÉ DE FABRICATION ET BATTERIE SECONDAIRE À ÉLECTROLYTE NON AQUEUX
KOGA KAZUMICHI (author) / UEGAMI MASAYUKI (author) / ISHIZAKI KAZUTOSHI (author) / SADAMURA HIDEAKI (author)
2018-08-08
Patent
Electronic Resource
English
IPC:
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
/
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
METHOD FOR PRODUCING LITHIUM MANGANATE PARTICLE POWDER AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
| European Patent Office | 2018
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| European Patent Office | 2023