Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-energy-efficiency carbon sagger and preparation method thereof
The invention relates to the technical field of lithium battery production, in particular to a high-energy-efficiency carbon sagger and a preparation method thereof.The high-energy-efficiency carbon sagger is prepared from carbon coarse aggregate, carbon fine aggregate, carbon fine powder, a tempering additive and a water-soluble binding agent through high-temperature carbonation. A crucible base body with a controllable microstructure is prepared by utilizing different grain grading, composite binding agents such as modified resin and industrial syrup are adopted, the strength of a carbon sagger biscuit is improved, the damage rate is reduced, a three-dimensional network-shaped structure is formed in the sagger in the roasting process to wrap aggregate and fill air holes, and the erosion resistance of the carbon sagger is enhanced; a group grafted on a carbon chain of the modified resin has good affinity with a tempering agent, Fe2AlB2 fibers with excellent damage tolerance are generated in situ through catalysis while zirconium boride, aluminum powder, iron powder and boron gangue are enriched, the toughness and thermal shock resistance of the product are further improved through the coupling effect of a modified resin framework and Fe2AlB2 whiskers, and the service life of the product is prolonged.
本发明涉及锂电池生产技术领域，尤其涉及一种高能效碳素匣钵及其制备方法，一种高能效碳素匣钵，由碳素粗骨料、碳素细骨料、碳素细粉、调质添加剂、水溶性结合剂经高温碳素化制得。利用不同颗粒级配制备显微结构可控的坩埚基体，采用改性树脂、工业糖浆等复合结合剂，提升碳素匣钵素坯强度，减少损坏率，焙烧过程中在匣钵内部形成三维网络状结构包覆骨料，填充气孔，增强碳素匣钵抗侵蚀能力；改性树脂碳链上枝接的基团与调质剂有良好的亲和性，在富集硼化锆、铝粉、铁粉和硼矸的同时，催化原位生成了具有优良损伤容限的Fe2AlB2纤维，改性树脂骨架、Fe2AlB2晶须的耦合作用进一步提高了产品的韧性与热震稳定性，增加其服役寿命。
High-energy-efficiency carbon sagger and preparation method thereof
The invention relates to the technical field of lithium battery production, in particular to a high-energy-efficiency carbon sagger and a preparation method thereof.The high-energy-efficiency carbon sagger is prepared from carbon coarse aggregate, carbon fine aggregate, carbon fine powder, a tempering additive and a water-soluble binding agent through high-temperature carbonation. A crucible base body with a controllable microstructure is prepared by utilizing different grain grading, composite binding agents such as modified resin and industrial syrup are adopted, the strength of a carbon sagger biscuit is improved, the damage rate is reduced, a three-dimensional network-shaped structure is formed in the sagger in the roasting process to wrap aggregate and fill air holes, and the erosion resistance of the carbon sagger is enhanced; a group grafted on a carbon chain of the modified resin has good affinity with a tempering agent, Fe2AlB2 fibers with excellent damage tolerance are generated in situ through catalysis while zirconium boride, aluminum powder, iron powder and boron gangue are enriched, the toughness and thermal shock resistance of the product are further improved through the coupling effect of a modified resin framework and Fe2AlB2 whiskers, and the service life of the product is prolonged.
本发明涉及锂电池生产技术领域，尤其涉及一种高能效碳素匣钵及其制备方法，一种高能效碳素匣钵，由碳素粗骨料、碳素细骨料、碳素细粉、调质添加剂、水溶性结合剂经高温碳素化制得。利用不同颗粒级配制备显微结构可控的坩埚基体，采用改性树脂、工业糖浆等复合结合剂，提升碳素匣钵素坯强度，减少损坏率，焙烧过程中在匣钵内部形成三维网络状结构包覆骨料，填充气孔，增强碳素匣钵抗侵蚀能力；改性树脂碳链上枝接的基团与调质剂有良好的亲和性，在富集硼化锆、铝粉、铁粉和硼矸的同时，催化原位生成了具有优良损伤容限的Fe2AlB2纤维，改性树脂骨架、Fe2AlB2晶须的耦合作用进一步提高了产品的韧性与热震稳定性，增加其服役寿命。
High-energy-efficiency carbon sagger and preparation method thereof
一种高能效碳素匣钵及其制备方法
YU CHAO (Autor:in) / ZHU HONGXI (Autor:in) / WU JIANXIANG (Autor:in) / WU PEIXIA (Autor:in)
21.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
Carbon-carbon composite sagger and preparation method and application thereof
| Europäisches Patentamt | 2024