Other

Chinese Academy of Sciences

Baotou Dongbao Bio Tech Co Ltd.

Yanchuan Guo

Xin Hui Zhang

Haitao Xu

Ying Cui

Rongfu Li

Yuanfen Hu

Keli Chen

Qiangli Gao

Bing Zhang

Eric Hanxiang Sun

Fang Liu

Jianing Wang

Furong Wang

A method of preparing collagen active peptides with antiproliferative activity against cancer cells. The collagen active peptides are obtained by hydrolysis of papain and trypsin and a specific purifying process. The collagen active peptides have antiproliferative activity against cancer cells, such as ovarian carcinoma cells including SKOV3, OVCAR3, 436 and SRO82 and the prostate cancer cells including PC3, LnCAPC1, and LnCAPC2.

Techniques of preparing collagen active peptides

The invention relates to a composite gel polymer Li-ion battery and its producing method. The Li-ion battery cell includes a three-layer composite layer of positive electrode current collector, positive electrode active material and gel polymer electrolyte obtained by a two-layer one-step coating process; a two-layer composite layer of negative electrode current collector and negative electrode active material obtained by a single-layer coating process or a negative electrode two-layer composite layer coated with a little polyurethane adhesive(s) on the surface. The gel polymer Li-ion battery cell is obtained by laminating the resultant two composite layers. The gel polymer Li-ion battery cell has a small thickness and a compact structure, and is laminated closely and easy for preparation and industrial automatic production. The Li battery prepared by the method has a uniform structure, a low internal resistance, a high uniformity, a good unity, and a high safety.

Method of producing a gel polymer Li-ion battery

The present invention relates to a gel polymer Li-ion battery electrode slice and a method for preparing the same. The electrode slice comprises a two-layer composite structure of electrode active material/gel electrolyte or a three-layer composite structure of electrode active material/gel electrolyte/electrode active material. The method includes preparation and filtration of gel polymer Li-ion battery electrode slurry and gel polymer electrolyte slurry and a multi-layer one-step coating process, and includes the following steps: a) grinding an electrode active material, and adding an adhesive, a surfactant, a dispersant thereto to obtain a raw slurry of the electrode active material; b) filtering the raw slurry of the electrode active material to obtain a uniform, fine precoating slurry; c) dispersing a monomer, a curing agent of the gel electrolyte and a polymer Li battery electrolyte into a solvent, and filtering the resultant dispersion to obtain a precoating gel electrolyte slurry; and d) coating directly the precoating slurries obtained in steps b) and c) on a composite film of current collector and polyester by a multi-layer one-step coating process to obtain a battery electrode slice of a two-layer composite structure of electrode active material/gel electrolyte or of a three-layer composite structure of electrode active material/gel electrolyte/electrode active material.

Gel polymer Li-ion battery electrode slice and preparing method thereof

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Beijing, China

Yanchuan Guo