Preparation method of electrostatic spinning lithium ion battery negative electrode plate
A technology for lithium-ion batteries and negative pole pieces, applied in battery electrodes, electrode manufacturing, secondary batteries, etc., can solve problems such as low production efficiency, achieve low production costs, increase transmission rate, and improve conductivity
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[0020] Example 1
[0021] A method for preparing the negative pole piece of an electrospinning lithium ion battery includes the following steps:
[0022] (1) The polyoxometalate lithium salt Li 3 PMo 12 O 40 Dissolve in deionized water to form a lithium polyoxometalate solution;
[0023] (2) Add graphite to the polyoxometalate lithium salt solution, and add the surfactant sodium dodecylbenzene sulfonate to form a spinning solution; the aqueous adhesive LA13x is: acrylonitrile multi-element copolymer, respectively Any of LA132, LA133 and LA135.
[0024] (3) Put the spinning solution into the electrospinning instrument for spinning, the receiving plate is copper foil, the spinneret is in multiple groups, and the distance between the spinneret and the receiving plate is 0.1-8cm (the best distance is 5cm) ; The voltage is 16-20KV (the best is 18Kv); the jet velocity is 0.1-0.3mL / S (the best flow rate is 0.2mL / S), and the filaments are densely and uniformly bonded to the copper foil, and ...
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[0027] Example 2
[0028] The preparation method and test method are the same as in Example 1, except that the polyoxometalate lithium salt is replaced with Li 3 PW 12 O 40 .
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[0029] Example 3
[0030] The preparation method and test method are the same as in Example 1, except that the polyoxometalate lithium salt is replaced with Li 4 SiMo 12 O 40 .
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