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Saggar for sintering lithium transition metal oxide, and preparation method therefor
A saggar for sintering a lithium transition metal oxide, and a preparation method therefor. The saggar comprises a base layer, and a shallow layer and a coating layer on the surface of the base layer. The base layer comprises the following raw materials: silicon carbide, magnesium aluminum spinel, aluminum oxide-magnesium oxide-yttrium oxide composite fibers, zircon powder, and a binder; the shallow layer comprises the following raw materials: silicon carbide, magnesium aluminum spinel, aluminum oxide-titanium oxide composite fibers, yttrium oxide-zirconium oxide composite fibers, and a binder; the coating layer comprises the following raw materials: silicon carbide, magnesium aluminum spinel, magnesium oxide, fiber zirconium oxide, lithium transition metal oxide powder, and a binder. The saggar according to embodiments of the present disclosure has good corrosion resistance and a small coefficient of thermal expansion, and corrosion phenomena such as cracking, peeling, and slag dropping are not likely to occur when a positive electrode material is in contact with the saggar, such that the service life of the saggar is prolonged.
Saggar for sintering lithium transition metal oxide, and preparation method therefor
A saggar for sintering a lithium transition metal oxide, and a preparation method therefor. The saggar comprises a base layer, and a shallow layer and a coating layer on the surface of the base layer. The base layer comprises the following raw materials: silicon carbide, magnesium aluminum spinel, aluminum oxide-magnesium oxide-yttrium oxide composite fibers, zircon powder, and a binder; the shallow layer comprises the following raw materials: silicon carbide, magnesium aluminum spinel, aluminum oxide-titanium oxide composite fibers, yttrium oxide-zirconium oxide composite fibers, and a binder; the coating layer comprises the following raw materials: silicon carbide, magnesium aluminum spinel, magnesium oxide, fiber zirconium oxide, lithium transition metal oxide powder, and a binder. The saggar according to embodiments of the present disclosure has good corrosion resistance and a small coefficient of thermal expansion, and corrosion phenomena such as cracking, peeling, and slag dropping are not likely to occur when a positive electrode material is in contact with the saggar, such that the service life of the saggar is prolonged.
Saggar for sintering lithium transition metal oxide, and preparation method therefor
BIN LI (author) / DINGSHAN RUAN (author) / SHENGHE TANG (author) / LING LI (author) / XINGYU WU (author) / CHANGDONG LI (author)
2023-09-20
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
/
F27D
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