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Special sagger for synthesizing lithium battery positive electrode material and preparation method of special sagger
The invention belongs to the technical field of refractory materials, and relates to a special sagger for synthesizing a lithium battery positive electrode material and a preparation method of the special sagger. The special sagger for synthesizing the lithium battery positive electrode material comprises a base body and a magnesium oxide ceramic composite layer coating the surface of the base body. According to the sagger, the maximum using temperature of the magnesium oxide ceramic composite layer on the surface of the sagger can reach 1300 DEG C under the protective atmosphere and the inertatmosphere, so that the sagger is suitable for the high-temperature and alkaline strong-corrosion environment under the reducing atmosphere; a compact coating can be formed on the base body, so thatthe surface of the sagger has good high-temperature stability, thermal shock resistance and alkali corrosion resistance; and the service life of the sagger is prolonged. Experimental results show thatthe special sagger for synthesizing the lithium battery positive electrode material provided by the invention has the compressive strength of 85-95MPa and is high in compressive strength; and the special sagger can be used for 47-60 times, and the service life of the special sagger is long.
本发明属于耐火材料技术领域，具体涉及一种锂电池正极材料合成专用匣钵及其制备方法。本发明提供了一种合成锂电池正极材料专用匣钵，包括基体和基体表面包覆的氧化镁陶瓷复合层。在本发明中，匣钵表面的氧化镁陶瓷复合层在保护气氛和惰性气氛下的最高使用温度可达1300℃，适用于还原气氛下高温、碱性强腐蚀环境，基体可以形成致密涂层，使匣钵表面具有良好的高温稳定性、抗热震性和耐碱性腐蚀性能，有利于提高匣钵使用寿命。实验结果表明，本发明提供的合成锂电池正极材料专用匣钵抗压强度为85～95MPa，抗压强度高；使用寿命为47～60次，使用寿命长。
Special sagger for synthesizing lithium battery positive electrode material and preparation method of special sagger
The invention belongs to the technical field of refractory materials, and relates to a special sagger for synthesizing a lithium battery positive electrode material and a preparation method of the special sagger. The special sagger for synthesizing the lithium battery positive electrode material comprises a base body and a magnesium oxide ceramic composite layer coating the surface of the base body. According to the sagger, the maximum using temperature of the magnesium oxide ceramic composite layer on the surface of the sagger can reach 1300 DEG C under the protective atmosphere and the inertatmosphere, so that the sagger is suitable for the high-temperature and alkaline strong-corrosion environment under the reducing atmosphere; a compact coating can be formed on the base body, so thatthe surface of the sagger has good high-temperature stability, thermal shock resistance and alkali corrosion resistance; and the service life of the sagger is prolonged. Experimental results show thatthe special sagger for synthesizing the lithium battery positive electrode material provided by the invention has the compressive strength of 85-95MPa and is high in compressive strength; and the special sagger can be used for 47-60 times, and the service life of the special sagger is long.
本发明属于耐火材料技术领域，具体涉及一种锂电池正极材料合成专用匣钵及其制备方法。本发明提供了一种合成锂电池正极材料专用匣钵，包括基体和基体表面包覆的氧化镁陶瓷复合层。在本发明中，匣钵表面的氧化镁陶瓷复合层在保护气氛和惰性气氛下的最高使用温度可达1300℃，适用于还原气氛下高温、碱性强腐蚀环境，基体可以形成致密涂层，使匣钵表面具有良好的高温稳定性、抗热震性和耐碱性腐蚀性能，有利于提高匣钵使用寿命。实验结果表明，本发明提供的合成锂电池正极材料专用匣钵抗压强度为85～95MPa，抗压强度高；使用寿命为47～60次，使用寿命长。
Special sagger for synthesizing lithium battery positive electrode material and preparation method of special sagger
一种合成锂电池正极材料专用匣钵及其制备方法
GONG RUOYI (author) / JI HAOYUE (author) / GONG HUANCHAO (author) / LIU HAILI (author) / LIU GUANGHAI (author) / ZHU YOU (author)
2021-03-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27D
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