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A platform for research: civil engineering, architecture and urbanism
Graphite sagger for high-density lithium battery and preparation method of graphite sagger
The invention relates to the technical field of graphite saggers, in particular to a graphite sagger for a high-density lithium battery and a preparation method of the graphite sagger, and the preparation method comprises the steps of graphite recovery and impurity removal, crushing and grinding, resin mixing, primary pre-pressing, isostatic compaction, atmosphere protection carbonization sintering and the like. Recycled materials with various particle sizes are separated from the recycled graphite through screens with different mesh numbers, then the recycled materials are mixed according to different sizes to achieve an excellent particle grading effect, and the resin accounts for 5%-10% of the total amount of the recycled materials. The recycled material is adopted as a graphite main body, so that the production cost is low, and gradient cyclic utilization of graphite products is realized; higher blank density can be obtained through excellent grain composition and a one-time pre-pressing process; compared with the conventional hydraulic process, the isostatic pressing process can obtain the graphite saggar with higher strength and more excellent uniformity.
本发明涉及石墨匣钵技术领域，具体涉及一种高密度锂电用石墨匣钵及其制备方法，所述制备方法包含回收石墨除杂、破碎磨粉、树脂混合、一次预压、等静压成型、气氛保护碳化烧结等步骤。回收石墨通过不同目数筛网分离出多种粒径回收料，然后大小混合实现优良的颗粒级配效果，其中树脂占回收料总量的5％‑10％。本发明采用回收料为石墨主体，生产成本低，实现了石墨产品的梯次循环利用；优良的颗粒级配以及一次预压工艺可得到更高的坯体密度；等静压成型工艺相对常规液压工艺可得到更高强度及均匀性更优良的石墨匣钵。
Graphite sagger for high-density lithium battery and preparation method of graphite sagger
The invention relates to the technical field of graphite saggers, in particular to a graphite sagger for a high-density lithium battery and a preparation method of the graphite sagger, and the preparation method comprises the steps of graphite recovery and impurity removal, crushing and grinding, resin mixing, primary pre-pressing, isostatic compaction, atmosphere protection carbonization sintering and the like. Recycled materials with various particle sizes are separated from the recycled graphite through screens with different mesh numbers, then the recycled materials are mixed according to different sizes to achieve an excellent particle grading effect, and the resin accounts for 5%-10% of the total amount of the recycled materials. The recycled material is adopted as a graphite main body, so that the production cost is low, and gradient cyclic utilization of graphite products is realized; higher blank density can be obtained through excellent grain composition and a one-time pre-pressing process; compared with the conventional hydraulic process, the isostatic pressing process can obtain the graphite saggar with higher strength and more excellent uniformity.
本发明涉及石墨匣钵技术领域，具体涉及一种高密度锂电用石墨匣钵及其制备方法，所述制备方法包含回收石墨除杂、破碎磨粉、树脂混合、一次预压、等静压成型、气氛保护碳化烧结等步骤。回收石墨通过不同目数筛网分离出多种粒径回收料，然后大小混合实现优良的颗粒级配效果，其中树脂占回收料总量的5％‑10％。本发明采用回收料为石墨主体，生产成本低，实现了石墨产品的梯次循环利用；优良的颗粒级配以及一次预压工艺可得到更高的坯体密度；等静压成型工艺相对常规液压工艺可得到更高强度及均匀性更优良的石墨匣钵。
Graphite sagger for high-density lithium battery and preparation method of graphite sagger
一种高密度锂电用石墨匣钵及其制备方法
HUANG SHAOFENG (author) / GAO YINGQUAN (author) / SHEN WEI (author) / ZHU YAFENG (author)
2024-09-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27D
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