34results about How to "Enhance internal bonding" patented technology

A method for preparing a rice husk-based negative electrode material, belonging to the field of biomass energy chemical industry, the specific steps are: (1) pulverizing the rice husk and hydrolyzing it with dilute acid at 100°C-120°C for 0.5h-1h to prepare xylose solution and hydrolyzed slag ; (2) The hydrolysis slag is impregnated with zinc chloride and activated to prepare the primary negative electrode material; (3) The C / SiO2 porous negative electrode material is prepared by modifying the electrode pitch. Compared with the prior art, the advantages of the method of the present invention are as follows: (1) using rice husk as a raw material, using dilute acid hydrolysis pretreatment, regulating the ratio of carbon and silicon, and solving the problem of inner and outer silicon dioxide in pyrolytic carbon. The distribution of carbon and carbon is not uniform, and there are large pieces of carbon in the inner layer. Due to the different microstructure, the problem of lithium intercalation and delithiation is not synchronized to reduce the specific capacity; (2) the use of pitch to treat the primary negative electrode material improves the conductivity; The carbon structure improves the anti-powdering ability; the surface functional groups are covered to avoid leakage current and improve cycle stability.

The invention discloses paper news media. The paper news media is prepared from, by weight, 60 parts of deinking chemical pulp, 18 parts of bamboo alkaline hydrogen peroxide mechanical pulp, 7 parts of bamboo chemical hot grinding mechanical pulp, 15 parts of aspen alkaline hydrogen peroxide hot grinding mechanical pulp, 0.03-0.08 part of brightener, 8-15 parts of filler, 0.5-1.5 parts of enhancer, 0.3-1 part of retention and drainage aid and 0.1-0.3 part of sizing agent. The prepared paper news media is high in brightness, opaqueness and strength and excellent in comprehensive performance.