Aqueous alkali metal ion battery based on colloid or gel electrolyte and preparation method thereof
A technology of gel electrolyte and alkali metal ions, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as difficult grid connection, corrosion, and low cycle life
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Embodiment 1
[0036] Such as figure 1 , an aqueous alkali metal ion battery based on a colloidal or gel electrolyte, the positive electrode uses 94% by mass carbon-coated λ-MnO 2 and 6% graphite to make the positive electrode sheet; the negative electrode is made of 8% graphite by mass percentage, 1% acetylene black, and 91% carbon coating (TiO) 2 P 2 o 7 Negative electrode sheet is made; colloidal electrolyte is made by adopting 9% sodium sulfate, 19% fumed silicon dioxide, 0.3% polyethylene glycol, 0.4% sodium iminosuccinate and the rest ratio is water. From left to right, the positive electrode current collector, positive electrode material, fiber separator, negative electrode material, and negative electrode current collector are assembled in sequence, and the above colloidal electrolyte is filled, and the battery is completed through the gel process. Such as figure 2 As shown, at a current density of 1mA / cm 2 Under the following conditions, it is found that after one charge and d...
Embodiment 2
[0038] Such as figure 1 , an aqueous alkali metal ion battery based on a colloidal or gel electrolyte, the positive electrode uses 96% by mass carbon-coated Na 2 NiFe(CN) 6 and 4% acetylene black to make the positive electrode sheet; the negative electrode is made of 3% graphite, 7% acetylene black, and 90% carbon-coated NaTi 2 (PO 4 ) 3 Negative electrode sheet is made; colloidal electrolyte is made by adopting 9% sodium sulfate, 19% fumed silicon dioxide, 0.3% polyethylene glycol, 0.4% sodium iminosuccinate and the rest ratio is water. From left to right, the positive electrode current collector, positive electrode material, fiber separator, negative electrode material, and negative electrode current collector are assembled in sequence, and the above colloidal electrolyte is filled, and the battery is completed through the gel process.
Embodiment 3
[0040] Such as figure 1 , an aqueous alkali metal ion battery based on a colloidal or gel electrolyte, the positive electrode uses 94% by mass carbon-coated λ-MnO 2 and 6% graphite to make the positive electrode sheet; the negative electrode is made of 8% graphite by mass percentage, 1% acetylene black, and 91% carbon coating (TiO) 2 P 2 o 7 Make the negative pole piece; adopt 7% sodium sulfate, 0.6% glycerin, 0.1% sodium hydroxide, and the rest is polyacrylamide colloid with a solid content of 17% to make a colloidal electrolyte. From left to right, the positive electrode current collector, positive electrode material, fiber separator, negative electrode material, and negative electrode current collector are assembled in sequence, and the above colloidal electrolyte is filled, and the battery is completed through the gel process.
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