Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of magnesium-containing silicon monoxide
The invention discloses a preparation method of magnesium-containing silicon monoxide. The magnesium-containing silicon monoxide comprises the following raw materials: silicon dioxide powder, metal silicon powder, metal magnesium powder and a binder. The preparation method comprises the following steps: a, weighing the raw materials in parts by weight; b, putting the silicon dioxide powder, the metal silicon powder and the metal magnesium powder into a mixer to be fully mixed to prepare a mixture A; c, adding a binder into the mixer to be mixed with the mixture A; d, molding the mixture through a press machine, and drying until the moisture is less than or equal to 1% after molding; and e, putting the dried material into a vacuum sintering furnace, vacuumizing, heating and reacting, filling N2 after the reaction is finished, and cooling to 200 DEG C or below to obtain a product. The energy density of the negative electrode material of the lithium battery is improved, the first efficiency of the battery can reach 88-92%, the cooling time of a vacuum sintering furnace is shortened by one third, the labor intensity of operators is improved, the production cost of magnesium-containing silicon monoxide is reduced, the efficiency in the production process of the magnesium-containing silicon monoxide is improved, and the method is also suitable for silicon monoxide production.
本发明公开了一种含镁一氧化硅的制备方法，包括原料：二氧化硅粉、金属硅粉、金属镁粉和粘结剂：制备如下：a.将上述原料按照重量份数称取；b.将二氧化硅粉、金属硅粉和金属镁粉放入到混合器中充分混合，制得混合物A；c.粘结剂加入到混合器中与混合物A进行混合，d.混合料通过压力机成型，成型后干燥至水份≤1％，e.将干燥后料放入到真空烧结炉中，抽真空加热反应，反应结束后充入N2进行冷却到200℃以下得到产品。本发明不仅提高锂电池负极材料能量密度，还能让电池首效达到88—92％，让真空烧结炉冷却时间缩短三分之一，改善操作人员劳动强度，降低含镁一氧化硅生产成本，提高含镁一氧化硅生产过程中效率，本发明也适用于一氧化硅生产。
Preparation method of magnesium-containing silicon monoxide
The invention discloses a preparation method of magnesium-containing silicon monoxide. The magnesium-containing silicon monoxide comprises the following raw materials: silicon dioxide powder, metal silicon powder, metal magnesium powder and a binder. The preparation method comprises the following steps: a, weighing the raw materials in parts by weight; b, putting the silicon dioxide powder, the metal silicon powder and the metal magnesium powder into a mixer to be fully mixed to prepare a mixture A; c, adding a binder into the mixer to be mixed with the mixture A; d, molding the mixture through a press machine, and drying until the moisture is less than or equal to 1% after molding; and e, putting the dried material into a vacuum sintering furnace, vacuumizing, heating and reacting, filling N2 after the reaction is finished, and cooling to 200 DEG C or below to obtain a product. The energy density of the negative electrode material of the lithium battery is improved, the first efficiency of the battery can reach 88-92%, the cooling time of a vacuum sintering furnace is shortened by one third, the labor intensity of operators is improved, the production cost of magnesium-containing silicon monoxide is reduced, the efficiency in the production process of the magnesium-containing silicon monoxide is improved, and the method is also suitable for silicon monoxide production.
本发明公开了一种含镁一氧化硅的制备方法，包括原料：二氧化硅粉、金属硅粉、金属镁粉和粘结剂：制备如下：a.将上述原料按照重量份数称取；b.将二氧化硅粉、金属硅粉和金属镁粉放入到混合器中充分混合，制得混合物A；c.粘结剂加入到混合器中与混合物A进行混合，d.混合料通过压力机成型，成型后干燥至水份≤1％，e.将干燥后料放入到真空烧结炉中，抽真空加热反应，反应结束后充入N2进行冷却到200℃以下得到产品。本发明不仅提高锂电池负极材料能量密度，还能让电池首效达到88—92％，让真空烧结炉冷却时间缩短三分之一，改善操作人员劳动强度，降低含镁一氧化硅生产成本，提高含镁一氧化硅生产过程中效率，本发明也适用于一氧化硅生产。
Preparation method of magnesium-containing silicon monoxide
一种含镁一氧化硅的制备方法
WANG LIZHUO (Autor:in) / WANG YUFEI (Autor:in)
03.12.2021
Patent
Elektronische Ressource
Chinesisch
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