Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of self-supporting thin film hard carbon material
The invention discloses a self-supporting film hard carbon material preparation method, which comprises: dissolving p-phenylenediamine and 3, 3 ', 4, 4'-biphenyl tetracarboxylic dianhydride in N-methyl pyrrolidone, and carrying out in-situ polymerization to obtain a polyamide acid solution; preparing a polyamic acid film by using the polyamic acid solution, wherein the thickness of the polyamic acid film is micron-sized; carrying out imidization treatment on the polyamide acid film to prepare a polyimide film; the polyimide film is subjected to carbonization treatment in an argon atmosphere, the self-supporting film hard carbon material is prepared, and when carbonization treatment is carried out, the pressure of 80-480 Pa is applied to the polyimide film. According to the method, the polyimide film is adopted as a carbonization precursor, preparation is easy, and the synthesis path is simple. The obtained self-supporting thin film hard carbon material improves the electrochemical sodium storage performance of an electrode material.
本发明公开一种自支撑薄膜硬碳材料制备方法，该硬碳材料的制备方法包括将对苯二胺与3,3',4,4'‑联苯四羧酸二酐溶解在N‑甲基吡咯烷酮中，原位聚合后，得到聚酰胺酸溶液；利用所述聚酰胺酸溶液制备聚酰胺酸薄膜，所述聚酰胺酸薄膜的厚度为微米级；对所述聚酰胺酸薄膜进行亚胺化处理，制得聚酰亚胺薄膜；在氩气气氛下，对所述聚酰亚胺薄膜进行碳化处理，制得所述自支撑薄膜硬碳材料，进行所述碳化处理处理时，对所述聚酰亚胺薄膜施加80~480Pa的压力。该方法通过采用聚酰亚胺薄膜作为碳化前驱体，制备容易，合成路径简单。得到的自支撑薄膜硬碳材料改善了电极材料的电化学储钠性能。
Preparation method of self-supporting thin film hard carbon material
The invention discloses a self-supporting film hard carbon material preparation method, which comprises: dissolving p-phenylenediamine and 3, 3 ', 4, 4'-biphenyl tetracarboxylic dianhydride in N-methyl pyrrolidone, and carrying out in-situ polymerization to obtain a polyamide acid solution; preparing a polyamic acid film by using the polyamic acid solution, wherein the thickness of the polyamic acid film is micron-sized; carrying out imidization treatment on the polyamide acid film to prepare a polyimide film; the polyimide film is subjected to carbonization treatment in an argon atmosphere, the self-supporting film hard carbon material is prepared, and when carbonization treatment is carried out, the pressure of 80-480 Pa is applied to the polyimide film. According to the method, the polyimide film is adopted as a carbonization precursor, preparation is easy, and the synthesis path is simple. The obtained self-supporting thin film hard carbon material improves the electrochemical sodium storage performance of an electrode material.
本发明公开一种自支撑薄膜硬碳材料制备方法，该硬碳材料的制备方法包括将对苯二胺与3,3',4,4'‑联苯四羧酸二酐溶解在N‑甲基吡咯烷酮中，原位聚合后，得到聚酰胺酸溶液；利用所述聚酰胺酸溶液制备聚酰胺酸薄膜，所述聚酰胺酸薄膜的厚度为微米级；对所述聚酰胺酸薄膜进行亚胺化处理，制得聚酰亚胺薄膜；在氩气气氛下，对所述聚酰亚胺薄膜进行碳化处理，制得所述自支撑薄膜硬碳材料，进行所述碳化处理处理时，对所述聚酰亚胺薄膜施加80~480Pa的压力。该方法通过采用聚酰亚胺薄膜作为碳化前驱体，制备容易，合成路径简单。得到的自支撑薄膜硬碳材料改善了电极材料的电化学储钠性能。
Preparation method of self-supporting thin film hard carbon material
一种自支撑薄膜硬碳材料制备方法
LIU XIAOXU (Autor:in) / REN PEIPEI (Autor:in)
27.12.2024
Patent
Elektronische Ressource
Chinesisch
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