Method for preparing phosphorylation-modified composite high-toughness storage battery case
A storage battery and high toughness technology, which is applied to the surface coating liquid device, anti-corrosion coating, fire-proof coating, etc. It can solve the problems such as the internal stress of the plastic shell is not completely eliminated, collision, beating, falling, battery sealing adhesive failure, etc. , to achieve the effect of alleviating the failure of sealing adhesive joints, promoting plasticization, and high practical value
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Embodiment 1
[0032] A method for preparing a phosphorylation-modified composite high-toughness battery case;
[0033] The technical problem to be solved by the present invention adopts the following technical solutions to realize:
[0034] A method for preparing a phosphorylated modified composite high-toughness battery case,
[0035] The preparation method of the phosphorylation-modified composite high-toughness battery case comprises the following steps:
[0036] (1) Take the above-mentioned sodium hypophosphite monohydrate, add it to deionized water 50 times its weight, stir evenly, send it into a constant temperature water bath at 76°C, slowly add the above-mentioned paraformaldehyde, and add the above-mentioned 35% hydrochloric acid under stirring condition , insulated and stirred for 8 hours under the protection of nitrogen, cooled the discharged material, filtered with suction, and vacuum-dried the precipitate at 80°C for 10 hours to obtain hydroxyalkylated phosphinic acid;
[003...
Embodiment 2
[0054] A phosphorylation-modified composite high-toughness battery case and a preparation method thereof;
[0055] The technical problem to be solved by the present invention adopts the following technical solutions to realize:
[0056] A phosphorylation-modified composite high-toughness battery casing and a preparation method thereof, comprising the following steps:
[0057] (1) Take the above-mentioned sodium hypophosphite monohydrate, add it to deionized water 50 times its weight, stir evenly, send it into a constant temperature water bath at 80°C, slowly add the above-mentioned paraformaldehyde, and add the above-mentioned 36% hydrochloric acid under stirring condition , insulated and stirred for 8 hours under the protection of nitrogen, cooled the discharged material, filtered with suction, and vacuum-dried the precipitate at 85°C for 10 hours to obtain hydroxyalkylated phosphinic acid;
[0058] (2) adding the above-mentioned hydroxyalkylated phosphinic acid into THF whi...
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