| abstract |
The invention discloses a method for preparing a double-sided porous cellulose solid electrolyte, which specifically includes the following steps: step 1, respectively preparing oxidized cellulose solution and esterified cellulose solution; step 2, oxidized cellulose solution and esterified cellulose solution according to step 1 The cellulose solution is used to prepare a double-sided porous cellulose membrane; in step 3, a solid electrolyte is prepared according to the cellulose membrane obtained in step 2. The crystal form of the natural cellulose used in the present invention is cellulose I, which itself contains a large number of intramolecular and intermolecular hydrogen bonds, and is difficult to be directly modified. II makes it easy to be modified into modified cellulose, and the molecular chain still contains a large number of hydroxyl groups. After oxidation modification and esterification modification, it becomes oxidized cellulose containing carboxyl group and esterification containing ester group. Cellulose, so that the cellulose composite film combines the advantages of oxidized cellulose and esterified cellulose at the same time. |