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Sagger for sintering high-nickel NCM811-series ternary positive electrode material and preparation method of sagger
The invention discloses a sagger for sintering a high-nickel NCM811-series ternary positive electrode material and a preparation method of the sagger. The preparation method comprises the following specific steps: S1, mixing the fused zirconium spinel particles, the fused zirconium spinel fine powder, the rare earth composite yttrium zirconium ceramic powder and the zirconium boride fine powder to obtain a premix; s2, sequentially adding lime milk and zirconium oxide sol into the premix to obtain a mixture; s3, the mixture is subjected to pouring vibration molding, curing and demolding, and a green body is obtained; and S4, performing drying heat treatment on the green body, and cooling the green body to room temperature to obtain the sagger for sintering the high-nickel NCM811-series ternary positive electrode material. The process is simple, the sintering temperature is low, other impurity components are not introduced, and the prepared sagger for sintering the high-nickel NCM811-series ternary positive electrode material is good in sintering performance, high in strength, high in thermal shock stability and high in erosion permeability resistance of lithium and nickel components.
本发明公开了一种高镍NCM811系三元正极材料烧结用匣钵及其制备方法。制备方法具体步骤如下：S1、将电熔锆尖晶石颗粒、电熔锆尖晶石细粉、稀土复合钇锆陶瓷粉和硼化锆细粉混合得预混料；S2、向所述预混料中依次加入石灰乳和氧化锆溶胶得到混合料；S3、将所述混合料浇注振动成型、养护、脱模，得生坯；S4、将所述生坯干燥热处理后冷却至室温得高镍NCM811系三元正极材料烧结用匣钵。本发明工艺简单，烧结温度低，不引入其它杂质组分，所制备的高镍NCM811系三元正极材料烧结用匣钵烧结性能好，强度大，热震稳定性高，抗锂镍组分的侵蚀渗透性强。
Sagger for sintering high-nickel NCM811-series ternary positive electrode material and preparation method of sagger
The invention discloses a sagger for sintering a high-nickel NCM811-series ternary positive electrode material and a preparation method of the sagger. The preparation method comprises the following specific steps: S1, mixing the fused zirconium spinel particles, the fused zirconium spinel fine powder, the rare earth composite yttrium zirconium ceramic powder and the zirconium boride fine powder to obtain a premix; s2, sequentially adding lime milk and zirconium oxide sol into the premix to obtain a mixture; s3, the mixture is subjected to pouring vibration molding, curing and demolding, and a green body is obtained; and S4, performing drying heat treatment on the green body, and cooling the green body to room temperature to obtain the sagger for sintering the high-nickel NCM811-series ternary positive electrode material. The process is simple, the sintering temperature is low, other impurity components are not introduced, and the prepared sagger for sintering the high-nickel NCM811-series ternary positive electrode material is good in sintering performance, high in strength, high in thermal shock stability and high in erosion permeability resistance of lithium and nickel components.
本发明公开了一种高镍NCM811系三元正极材料烧结用匣钵及其制备方法。制备方法具体步骤如下：S1、将电熔锆尖晶石颗粒、电熔锆尖晶石细粉、稀土复合钇锆陶瓷粉和硼化锆细粉混合得预混料；S2、向所述预混料中依次加入石灰乳和氧化锆溶胶得到混合料；S3、将所述混合料浇注振动成型、养护、脱模，得生坯；S4、将所述生坯干燥热处理后冷却至室温得高镍NCM811系三元正极材料烧结用匣钵。本发明工艺简单，烧结温度低，不引入其它杂质组分，所制备的高镍NCM811系三元正极材料烧结用匣钵烧结性能好，强度大，热震稳定性高，抗锂镍组分的侵蚀渗透性强。
Sagger for sintering high-nickel NCM811-series ternary positive electrode material and preparation method of sagger
一种高镍NCM811系三元正极材料烧结用匣钵及其制备方法
ZHANG JIANCHENG (author)
2024-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27D
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