▎ 摘 要
NOVELTY - A graphene aluminum ion secondary battery manufacturing method involves utilizing a graphene microchip material, a unique non-collector positive and negative plate primary molding process and a multi-cell unit series assembly technology. Positive electrode paste is prepared. Negative electrode plate is pretreated followed by placing positive electrode plate film on the negative electrode plate coated with the conductive silica gel on the third step, and pressing positive electrode using a press (rolling or horizontal static pressure), pressing diaphragm onto the negative aluminum plate to prepare positive and negative plate, performing electrolyte preparation by liquid containing aluminum ion configured as electrolyte of battery, repeating the process of making positive and negative plates, separating by the diaphragm and injecting into electrolyte, insulating last two adjacent plates with insulation, sealing with plastic, assembling into a battery. USE - Method for manufacturing graphene aluminum ion secondary battery. ADVANTAGE - The graphene aluminum ion battery has high charge and discharge rate, long cycle life, high energy conversion efficiency, high specific energy, safe non-combustion, low cost and wide market application. DETAILED DESCRIPTION - A graphene aluminum ion secondary battery manufacturing method involves utilizing a graphene microchip material, a unique non-collector positive and negative plate primary molding process and a multi-cell unit series assembly technology, where the battery comprises a positive electrode and a negative electrode, ionic electrolyte and the separator, the positive electrode is a carbon material (made of a graphene microchip, a binder, and water according to a positive electrode plate manufacturing process), the negative electrode is a high-purity aluminum material, and the ionic electrolyte is an organic salt-chlorine. Positive electrode paste is prepared by adding the graphene microchip to the adhesive, such as mixed solutions of polyvinylidene difluoride, N-methyl-2-Pyrrolidone, PTFE, phenolic resin, deionized water, three materials and the mixture prepared according to the ratio is stirred at a temperature of 20-45 degrees C for 1 to 3 hours (using a double planetary mixer or a twin-screw kneader) to obtain a positive electrode active material. Positive electrode plate is prepared by repeatedly tempering active material of the first positive electrode paste by a stretching machine for 2-10 times to form a crude film of the positive electrode, and pressing crude film of the positive electrode. Negative electrode plate is pretreated by successively cleaning high-purity aluminum (aluminum plate, aluminum sheet, aluminum foil, aluminum foam sheet) with acetic acid (anhydrous ethanol, acetone or other weak acid, weak alkali) and deionized water, coating one side of the cleaned negative plate with a layer of 0.1-100 micron followed by placing positive electrode plate film on the negative electrode plate coated with the conductive silica gel on the third step, and pressing positive electrode using a press (rolling or horizontal static pressure), pressing diaphragm onto the negative aluminum plate to prepare a positive and negative plate, performing electrolyte preparation by a liquid containing aluminum ion configured as an electrolyte of the battery, repeating the process of making the positive and negative plates, separating by the diaphragm and injecting into the electrolyte, insulating last two adjacent plates with insulation, sealing with plastic, assembling into a battery with any voltage of DC 2V-600V.