Method for realizing high voltage of monomer battery, preparation of monomer battery and battery pack manufacturing method of monomer batteries
A single battery, single voltage technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve problems such as bulky battery packs
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Embodiment 1
[0036] The preparation method of the battery pack of this embodiment comprises the following preparation steps:
[0037] Preparation of positive electrode: Using NMP as solvent, 95.5% nickel-cobalt lithium manganese oxide (LiNixCoyMn(1-x-y)O2, where x=1 / 5~4 / 5, y=1 / 5~4 / 5), 1.6 % of conductive carbon, 1.0% of BP-2000 and 2% of polyvinylidene fluoride were mixed and stirred to form the active material layer A slurry, the solid content of the active material layer A slurry was 65%, and 16 μm aluminum foil was used as the positive electrode current collector. Then apply the active material first layer slurry on the surface of 16 μm aluminum foil to form the active material first layer, dry it, and then use a roller press to compact the pole piece to make a positive pole piece, and then use a punching machine or a film cutter. The large sheet is made into a positive electrode sheet of a specified size with an aluminum foil current collector. Preparation of the negative electrode: t...
Embodiment 2
[0040] The preparation method of the battery pack of this embodiment comprises the following preparation steps:
[0041] a) Preparation of positive electrode: 95.5% nickel-cobalt lithium manganese oxide (LiNixCoyMn(1-x-y)O2, where x=1 / 5~4 / 5, y=1 / 5~4 / 5) was used as solvent in NMP , 1.6% of conductive carbon, 1.0% of BP-2000 and 2% of polyvinylidene fluoride were mixed and stirred to form the active material layer A slurry, the solid content of the active material layer A slurry was 65%, and 16 μm aluminum foil was used as the positive electrode collector Fluid, and then apply the active material layer slurry on the surface of 16μm aluminum foil to form the active material layer, dry, and then use a roller press to compact the pole piece to make a positive pole piece, and then use a punching machine or film cutting The machine made the large sheet into a positive electrode sheet of a specified size with an aluminum foil current collector.
[0042] b) Preparation of the negative...
Embodiment 3
[0047] The preparation method of the battery pack of this embodiment comprises the following preparation steps:
[0048] a) Preparation of positive electrode: 95.5% nickel-cobalt lithium manganese oxide (LiNixCoyMn(1-x-y)O2, where x=1 / 5~4 / 5, y=1 / 5~4 / 5) was used as solvent in NMP , 1.6% of conductive carbon, 1.0% of BP-2000 and 2% of polyvinylidene fluoride were mixed and stirred to form the active material layer A slurry, the solid content of the active material layer A slurry was 65%, and 16 μm aluminum foil was used as the positive electrode collector Fluid, and then apply the active material layer slurry on the surface of 16μm aluminum foil to form the active material layer, dry, and then use a roller press to compact the pole piece to make a positive pole piece, and then use a punching machine or film cutting The machine made the large sheet into a positive electrode sheet of a specified size with an aluminum foil current collector.
[0049] b) Preparation of the negative...
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