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Sagger for magnesium aluminate spinel-cordierite calcined lithium battery positive electrode material and preparation method of sagger
The invention discloses a sagger for a magnesium aluminate spinel-cordierite calcined lithium battery positive electrode material and a preparation method of the sagger, and the preparation method comprises the following steps: mixing 5-40t% of sepiolite mineral fine powder, 45-85wt% of alumina fine powder and 10-18wt% of fused magnesia fine powder in proportion, granulating, carrying out mechanical pressing, naturally drying, sintering at 1100-1300 DEG C, then crushing and screening to obtain reinforced granular aggregate and matrix fine powder A with different granularities, mixing 35-75wt%of sepiolite mineral fine powder, 25-50wt% of alumina fine powder and 0-15wt% of fused magnesia fine powder in proportion to obtain a mixture B, uniformly mixing the reinforced granular aggregate, thematrix fine powder A and the mixture B in proportion, performing mechanical pressing, drying at 100-110 DEG C, sintering at 1100-1300 DEG C, and obtaining the sagger for sintering the magnesium aluminate spinel-cordierite lithium battery positive electrode material. The preparation method is simple in process and low in cost, and the prepared sagger is high in strength, good in thermal shock stability, resistant to erosion of the lithium battery positive electrode material and long in service life.
本发明公开了一种镁铝尖晶石‑堇青石质煅烧锂电池正极材料用匣钵及其制备方法，制备方法包括：将5~40t%海泡石矿物细粉、45~85wt%氧化铝细粉、10~18wt%电熔镁砂细粉按比例混合，造粒，然后机压成型，自然干燥后在1100～1300℃下烧成，再破碎筛分得到不同粒度的增强颗粒骨料和基质细粉A，将35~75wt%海泡石矿物细粉、25~50wt%氧化铝细粉、0~15wt%电熔镁砂细粉按比例混合，得到混合料B，将增强颗粒骨料和基质细粉A、混合料B按照比例混合均匀，机压成型，100～110℃干燥后，1100～1300℃下烧成，制得镁铝尖晶石‑堇青石质锂电池正极材料烧结用匣钵。本发明工艺简单、成本低，所制备的匣钵强度高、热震稳定性好、耐锂电池正极材料侵蚀，寿命长。
Sagger for magnesium aluminate spinel-cordierite calcined lithium battery positive electrode material and preparation method of sagger
The invention discloses a sagger for a magnesium aluminate spinel-cordierite calcined lithium battery positive electrode material and a preparation method of the sagger, and the preparation method comprises the following steps: mixing 5-40t% of sepiolite mineral fine powder, 45-85wt% of alumina fine powder and 10-18wt% of fused magnesia fine powder in proportion, granulating, carrying out mechanical pressing, naturally drying, sintering at 1100-1300 DEG C, then crushing and screening to obtain reinforced granular aggregate and matrix fine powder A with different granularities, mixing 35-75wt%of sepiolite mineral fine powder, 25-50wt% of alumina fine powder and 0-15wt% of fused magnesia fine powder in proportion to obtain a mixture B, uniformly mixing the reinforced granular aggregate, thematrix fine powder A and the mixture B in proportion, performing mechanical pressing, drying at 100-110 DEG C, sintering at 1100-1300 DEG C, and obtaining the sagger for sintering the magnesium aluminate spinel-cordierite lithium battery positive electrode material. The preparation method is simple in process and low in cost, and the prepared sagger is high in strength, good in thermal shock stability, resistant to erosion of the lithium battery positive electrode material and long in service life.
本发明公开了一种镁铝尖晶石‑堇青石质煅烧锂电池正极材料用匣钵及其制备方法，制备方法包括：将5~40t%海泡石矿物细粉、45~85wt%氧化铝细粉、10~18wt%电熔镁砂细粉按比例混合，造粒，然后机压成型，自然干燥后在1100～1300℃下烧成，再破碎筛分得到不同粒度的增强颗粒骨料和基质细粉A，将35~75wt%海泡石矿物细粉、25~50wt%氧化铝细粉、0~15wt%电熔镁砂细粉按比例混合，得到混合料B，将增强颗粒骨料和基质细粉A、混合料B按照比例混合均匀，机压成型，100～110℃干燥后，1100～1300℃下烧成，制得镁铝尖晶石‑堇青石质锂电池正极材料烧结用匣钵。本发明工艺简单、成本低，所制备的匣钵强度高、热震稳定性好、耐锂电池正极材料侵蚀，寿命长。
Sagger for magnesium aluminate spinel-cordierite calcined lithium battery positive electrode material and preparation method of sagger
一种镁铝尖晶石-堇青石质煅烧锂电池正极材料用匣钵及其制备方法
TAN JIANJIE (author) / LI HAIFENG (author) / OUYANG DONGHONG (author) / LUO WENJUN (author) / XIE YAN (author) / HUANG JIANWU (author) / YANG ZHIHONG (author)
2021-01-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27D
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