Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
LITHIUM TITANATE SINTERED PLATE
Provided is a lithium titanate sintered plate having high lithium ion conductivity and high electron conductivity and resulting in satisfactory high-rate charge/discharge performance and superior high-temperature operation characteristics when incorporated as a negative electrode into a lithium secondary battery. The lithium titanate sintered plate in the present invention is usable in a negative electrode of a lithium secondary battery. The lithium titanate sintered plate has a structure in which a plurality of primary grains are bonded, and has: a thickness of 10 to 290 µm; a primary grain diameter of 0.70 µm or less, the primary grain diameter being a mean grain diameter of the primary grains; a porosity of 21 to 45%; an open pore rate of 60% or more; a mean pore aspect ratio of 1.15 or more; a ratio of 30% or more of pores having an aspect ratio of 1.30 or more to all the pores; and a mean pore diameter of 0.70 µm or less, wherein volume-based D10 and D90 pore diameters satisfy the relationship: 4.0 ≤ D90/D10 ≤ 50.
LITHIUM TITANATE SINTERED PLATE
Provided is a lithium titanate sintered plate having high lithium ion conductivity and high electron conductivity and resulting in satisfactory high-rate charge/discharge performance and superior high-temperature operation characteristics when incorporated as a negative electrode into a lithium secondary battery. The lithium titanate sintered plate in the present invention is usable in a negative electrode of a lithium secondary battery. The lithium titanate sintered plate has a structure in which a plurality of primary grains are bonded, and has: a thickness of 10 to 290 µm; a primary grain diameter of 0.70 µm or less, the primary grain diameter being a mean grain diameter of the primary grains; a porosity of 21 to 45%; an open pore rate of 60% or more; a mean pore aspect ratio of 1.15 or more; a ratio of 30% or more of pores having an aspect ratio of 1.30 or more to all the pores; and a mean pore diameter of 0.70 µm or less, wherein volume-based D10 and D90 pore diameters satisfy the relationship: 4.0 ≤ D90/D10 ≤ 50.
LITHIUM TITANATE SINTERED PLATE
GESINTERTE PLATTE AUS LITHIUMTITANAT
PLAQUE FRITTÉE DE TITANATE DE LITHIUM
YURA YUKINOBU (Autor:in) / OKADA SHIGEKI (Autor:in) / KOBAYASHI NOBUYUKI (Autor:in)
25.08.2021
Patent
Elektronische Ressource
Englisch
IPC:
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
/
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
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METHOD OF MANUFACTURING SINTERED BODY CONTAINING SPINEL TYPE LITHIUM TITANATE
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