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A platform for research: civil engineering, architecture and urbanism
Continuous preparation method of an ultrathin ceramic chip solid composite electrolyte of lithium battery
The invention belongs to the technical field of lithium battery materials, and particularly relates to a continuous preparation method of an ultrathin ceramic chip solid composite electrolyte of a lithium battery. The method comprises the following steps: adding polyvinylpyrrolidone into absolute ethyl alcohol at room temperature, stirring for 10-15 minutes, sequentially adding a lithium source, alanthanum source and a zirconium source, mechanically stirring for 120 minutes or more, adding a defoaming agent, and defoaming in vacuum for 20-50 minutes to obtain precursor slurry; scraping the slurry on a porous polymer film to form a film, then heating the polymer film to 130-160 DEG C, biaxially stretching the film, placing the stretched film on a conveyor belt, and continuously passing through a drying oven to form a solid ceramic green belt; cutting the solid ceramic green tape into ceramic blank sheets, placing the ceramic blank sheets in a sintering furnace, raising the temperatureto 450-600 DEG C at the rate of 2-3 DEG C/min for heating and heat preservation for 1-2 hours, then raising the temperature to 700-850 DEG C at the rate of 5-10 DEG C/min for sintering and heat preservation for 2-4 hours, and taking out the ceramic blank sheets after furnace cooling.
本发明属于锂电池材料技术领域，具体涉及一种锂电池超薄陶瓷片固态复合电解质的连续制备方法。本发明的方法包括：在室温下将聚乙烯吡咯烷酮加入无水乙醇中，搅拌10～15min，依次加入锂源、镧源和锆源，机械搅拌120min以上，加入消泡剂真空除泡20～50min，得到前驱体浆料；将浆料刮涂在多孔聚合物薄膜上成膜，之后将聚合物薄膜加热至130～160℃，对薄膜进行双向拉伸，将拉伸后的薄膜置于传送带上，连续经过烘干炉形成固体陶瓷生带；将固体陶瓷生带裁剪为陶瓷坯片，置于烧结炉中，以2～3℃/min的速率升温至450～600℃进行加热，保温1～2h，然后以5～10℃/min升温速率加热到700～850℃烧结后保温2～4h，随炉冷后取出即得。
Continuous preparation method of an ultrathin ceramic chip solid composite electrolyte of lithium battery
The invention belongs to the technical field of lithium battery materials, and particularly relates to a continuous preparation method of an ultrathin ceramic chip solid composite electrolyte of a lithium battery. The method comprises the following steps: adding polyvinylpyrrolidone into absolute ethyl alcohol at room temperature, stirring for 10-15 minutes, sequentially adding a lithium source, alanthanum source and a zirconium source, mechanically stirring for 120 minutes or more, adding a defoaming agent, and defoaming in vacuum for 20-50 minutes to obtain precursor slurry; scraping the slurry on a porous polymer film to form a film, then heating the polymer film to 130-160 DEG C, biaxially stretching the film, placing the stretched film on a conveyor belt, and continuously passing through a drying oven to form a solid ceramic green belt; cutting the solid ceramic green tape into ceramic blank sheets, placing the ceramic blank sheets in a sintering furnace, raising the temperatureto 450-600 DEG C at the rate of 2-3 DEG C/min for heating and heat preservation for 1-2 hours, then raising the temperature to 700-850 DEG C at the rate of 5-10 DEG C/min for sintering and heat preservation for 2-4 hours, and taking out the ceramic blank sheets after furnace cooling.
本发明属于锂电池材料技术领域，具体涉及一种锂电池超薄陶瓷片固态复合电解质的连续制备方法。本发明的方法包括：在室温下将聚乙烯吡咯烷酮加入无水乙醇中，搅拌10～15min，依次加入锂源、镧源和锆源，机械搅拌120min以上，加入消泡剂真空除泡20～50min，得到前驱体浆料；将浆料刮涂在多孔聚合物薄膜上成膜，之后将聚合物薄膜加热至130～160℃，对薄膜进行双向拉伸，将拉伸后的薄膜置于传送带上，连续经过烘干炉形成固体陶瓷生带；将固体陶瓷生带裁剪为陶瓷坯片，置于烧结炉中，以2～3℃/min的速率升温至450～600℃进行加热，保温1～2h，然后以5～10℃/min升温速率加热到700～850℃烧结后保温2～4h，随炉冷后取出即得。
Continuous preparation method of an ultrathin ceramic chip solid composite electrolyte of lithium battery
一种锂电池超薄陶瓷片固态复合电解质的连续制备方法
LIAO JIANSONG (author) / CHEN QING (author) / SI WENBIN (author) / BAI TAO (author)
2021-03-30
Patent
Electronic Resource
Chinese
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