• 专利标题:   Safety adhesive paper useful in lithium battery, comprises substrate and acrylite monomer, modified fillers, reference agents, curing agents and solvents as pressure -sensitive rubber layer, where modified fillers includes inorganic fillers and siane coupling agents.
  • 专利号:   CN115651557-A
  • 发明人:   TAN Y, WEI X, HUANG X
  • 专利权人:   HUIZHOU LIWEI NEW ENERGY TECHNOLOGY CO
  • 国际专利分类:   C09J011/04, C09J133/08, C09J007/24, C09J007/25, C09J007/38, H01M010/052, H01M050/24, H01M050/536
  • 专利详细信息:   CN115651557-A 31 Jan 2023 C09J-007/25 202318 Chinese
  • 申请详细信息:   CN115651557-A CN11346190 31 Oct 2022
  • 优先权号:   CN11346190

▎ 摘  要

NOVELTY - Safety adhesive tape, comprises substrate and acrylate monomers, modified fillers, initiators, curing agents and solvents as a pressure-sensitive adhesive layer. The modified filler include inorganic filler and silane coupling agent. USE - The safety adhesive tape, is useful in lithium battery (claimed), which is useful in mobile phone, flat computer and other mobile electronic product power consumption. ADVANTAGE - The safety adhesive tape has heat conduction and flame-retardant effect, improves the heat abuse performance of the lithium battery, overcharging and high temperature short circuit test, reduces the burr generated by the tab welding generated by self-discharge, improve the consistency of the battery performance, can make the cell formation of a lithium battery is more uniform, reducing the electric core inner weak point. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: preparing the security adhesive tape comprising uniformly mixing an acrylate monomer with a solvent, and raising the temperature to obtain a monomer mixture, adding the initiator solution A dropwise into the monomer mixture, then raising the temperature, keeping warm and passing nitrogen to react, cooling down to obtain the acrylate prepolymer, adding the modified filler to the acrylate prepolymer to obtain the prepolymer polymer mixture I, adding initiator solution B in the prepolymer mixture I, and maintaining the temperature for reaction to obtain the prepolymer mixture II, adding the initiator solution C to the prepolymer mixture II, heating up and carrying out heat preservation reaction to obtain an acrylic resin, lowering temperature of the acrylic resin, and adding solvent to the acrylic resin to obtain a pressure-sensitive adhesive liquid, adding the curing agent into the pressure-sensitive adhesive liquid and mix evenly to obtain the pressure-sensitive adhesive coating, coating pressure-sensitive adhesive coating on the pretreated side of the substrate, coating, and curing at a high temperature; and lithium battery, comprising a anode sheet, cathode sheet and the safety adhesive tape, the safety adhesive tape is attached to the anode sheet and the cathode sheet respectively. DESCRIPTION OF DRAWING(S) - The drawing shows a structure schematic diagram of the safety adhesive paper. 1Substrate 2Pressure-sensitive adhesive layer 3Release layer