Lithium battery and electrode for same, and preparation method of solid electrolyte film
A solid electrolyte membrane and lithium-ion battery technology, applied in the field of materials, can solve the problems of high requirements for thin-film electrode equipment, organic solvent pollution, complex process, etc., and achieve the effects of simple equipment and process, pollution reduction, and simple equipment
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specific Embodiment approach 1
[0030] Specific implementation mode 1: In this implementation mode, the lithium-ion battery positive electrode LiCoO 2 The preparation method of the electrode is carried out according to the following steps:
[0031] According to the mass ratio of 8.7:0.5:0.8, the active material LiCoO 2 , The conductive agent acetylene black and the binder PVDF powder are weighed, and the ball milling speed is 200-450r / min for 1 hour to mix evenly, and then transfer the mixed material to the laser printing ink cartridge. The aluminum foil is fixed on the substrate with adhesive tape, and the uniform electrode to be prepared can be obtained by printing.
specific Embodiment approach 2
[0032] Specific embodiment two: the preparation method of lithium-ion battery positive electrode in this embodiment is carried out according to the following steps:
[0033] According to the mass ratio of 8:1:1, the active material LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2, The conductive agent acetylene black and the binder PVDF powder are weighed, and the ball milling speed is 200-450r / min. After ball milling for 1 hour and mixed evenly, the mixed material is transferred to the laser printing ink cartridge. The copper foil is fixed on the substrate with adhesive tape, and the uniform electrode to be prepared can be obtained by printing.
specific Embodiment approach 3
[0034] Specific embodiment three: the preparation method of lithium ion battery negative electrode graphite electrode in the present embodiment is carried out according to the following steps:
[0035] According to the mass ratio of 8:1:0.5:0.5, the active material graphite, the conductive agent acetylene black and the binder (CMC, SBR) powder are weighed, and the ball milling speed is 200-450r / min. After mixing evenly, the mixed material transferred to the laser print cartridge. The copper foil was fixed on the substrate with adhesive tape, and the printing was repeated twice to obtain the uniform electrode to be prepared.
[0036] figure 1 It is the electrode printed by laser in this embodiment. The substrate is white paper, the base is the current collector copper foil, and the black is the active material electrode. From figure 1 It can be seen that the electrode can be printed according to the method and the size of the printed electrode can be controlled by a compute...
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