Composite thermistor material, thermistor, thermosensitive lug and lithium-ion battery
A thermistor and tab technology, applied in the field of composite thermistor materials, can solve problems such as protection, affecting battery rate performance and cycle performance, and soft pack batteries cannot pass the overcharge test.
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[0071] Example 1
[0072] The present invention provides a PTC thermistor containing C60 fullerene, which is composed of two layers of metal foil (aluminum) with a sheet-shaped PTC core material inside. The PTC core material is composed of PTC materials, additives, and C60 fullerene Composition, the weight parts of each core material are as follows:
[0073] PTC material: 70wt%; PTC material is barium titanate;
[0074] Additives: 25wt% (additives include: 5 parts by weight of coupling agent (silane coupling agent), 3 parts by weight of flame retardant (aluminum hydroxide), 3 parts by weight of antioxidant (dilauryl thiodipropionate) , Anti-aging agent (4,4'-dithiodimorpholine) 3 parts by weight, accelerator (zinc dimethyldithiocarbamate) 4 parts by weight, cross-linking agent (N N'-methylene dipropylene Amide) 3 parts by weight, dispersant (sodium methylene naphthalene sulfonate) 4 parts by weight);
[0075] C60 fullerene: 5wt%.
[0076] The preparation method of PTC thermistor cont...
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[0086] Example 2
[0087] The present invention provides a PTC thermistor containing C60 fullerene, which is composed of two layers of metal foils with a sheet-shaped PTC core material inside. The PTC core material is composed of PTC materials, additives, and C60 fullerenes, each The parts by weight of the core material are as follows:
[0088] PTC material: 60wt%; PTC material is iron powder (20wt%), copper powder (20wt%), titanium dioxide (20wt%);
[0089] Additives: 30wt% (additives include: 6 parts by weight of coupling agent (silane coupling agent), 4 parts by weight of flame retardant (aluminum hydroxide), 3 parts by weight of antioxidant (dilauryl thiodipropionate) , Anti-aging agent (4,4'-dithiodimorpholine) 4 parts by weight, accelerator (zinc dimethyldithiocarbamate) 4 parts by weight, crosslinking agent (N N'-methylene bispropylene Amide) 4 parts by weight, dispersant (sodium methylene naphthalene sulfonate) 5 parts by weight);
[0090] C60 fullerene: 10wt%.
[0091] This ...
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