2results about How to "High appearance requirements" patented technology

Disclosed is a brimless cylindrical battery structure, comprising a combination cover with a pressure relief structure, a bottom cover, a roll core with single or multiple tabs at both ends, and a shell used as a roll core storage container, a combination cover, and a welding carrier for the bottom cover; the roll core is put into the shell; the positive tab of the roll core is connected to the combination cover, and the negative tab of the roll core is connected to the bottom cover; the combination cover forms the positive pole accordingly, and the bottom cover forms the negative pole accordingly; the combination cover and the bottom cover are sealed and installed on both sides of the shell. The invention has high consistency in appearance and size, higher safety performance and higher capacity battery to increase customer experience.

The invention discloses a low-whitening ethyl cyanoacrylate adhesive composition and a preparation method thereof, and relates to the technical field of instant dry adhesives. The low-whitening ethyl cyanoacrylate adhesive composition is prepared from the following components in parts by weight: 80 to 88 parts of alpha-ethyl cyanoacrylate, 1.2 to 4.0 parts of a cyanoacetamide volatile anchoring agent, 5.0 to 12.0 parts of a low vapor pressure cyanoacrylate monomer, 0.055 to 0.38 part of a stabilizer and 2.0 to 7.0 parts of a thickening agent. According to the low-whitening ethyl cyanoacrylate adhesive composition provided by the invention, the whitening phenomenon can be remarkably reduced, and the main monomer is still alpha-ethyl cyanoacrylate, so that the quick positioning, high shear strength and good adhesive property to various substrates of the traditional ECA adhesive are maintained; the comprehensive performance is balanced.