A kind of bromide cylindrical battery and its assembly method
A cylindrical battery and bromide technology, applied in battery electrodes, secondary batteries, assembled battery machines, etc., can solve the problems of rising raw materials for lithium-ion power batteries, poor safety of lithium-ion power batteries, and restrictions on the promotion and application of electric vehicles. Achieve the effect of mature production technology, high specific energy and low price
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Embodiment 1
[0120] A bromide cylindrical battery, which includes a carbon electrode, a magnesium negative electrode, an ultrafine glass fiber diaphragm, a bottom cylinder, a cap, an electrolyte and a shell; the carbon electrode includes an aluminum foil and a bromide positive electrode component coated on the surface of the aluminum foil.
[0121] The bromide cathode component is made up of the following components by weight: 80 parts of tetraethylammonium tribromide, high specific surface area activated carbon (the specific surface area is 3500m 2 / g) 10 parts, carbon nanotubes 5 parts and PVDF 5 parts.
[0122] The positive electrode containing the bromide positive electrode component adopts the following preparation method:
[0123] (1) Put tetraethylammonium tribromide, activated carbon with high specific surface area, carbon nanotubes and PVDF into a ball mill jar, and ball mill for 55 minutes;
[0124] (2) add N-methylpyrrolidone in the ball mill jar, make the total mass of tetraet...
Embodiment 2
[0140] Compared with Example 1, except that the assembling method of the bromide cylindrical battery is different, others are the same as Example 1.
[0141] The assembly method of bromide cylindrical battery comprises the following steps:
[0142] Such as figure 2 As shown, the magnesium negative electrode 3 is first connected to the bottom cylinder 2 through the negative electrode ear 7, and fixed by screws; the carbon electrode 5 is connected to the cap 1 through the positive electrode ear 6, and fixed by screws; then the carbon electrode and the magnesium negative electrode are connected The space is separated by an ultra-fine glass fiber diaphragm, wound into a cylinder by a winding machine, loaded into the bottom cylinder 2, and the cap 1 is riveted on the bottom cylinder 2.
[0143] After the battery is assembled, the electrolyte solution is injected into the battery electrode group, and after formation, aging, air extraction, and secondary sealing, a bromide cylindri...
Embodiment 3
[0145] Compared with Example 1, in the preparation method of bromide, raw material organic salt is N-ethyl-N-butylmorpholine bromide, and bromide is N-ethyl-N-butylmorpholine tribromide , others are identical with embodiment 1.
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