Tianjin University

Shenzhen Salubris Pharmaceuticals Co. Ltd.

Qi Wang

Zhiyuan Tang

Lei Sun

Guowei Ling

Baohong Hou

Junbo Gong

Qiuxiang Yin

Jingkang Wang

Duanming Tan

Xiaopeng Song

Liting Liao

Ziyuan Di

A cylindrical single-piece lithium-ion battery of 400 Ah includes: a cylindrical battery enclosure (), a battery mandrel (), a plurality of tabs (), a wiring terminal (), a positive and negative electrode cover (); a positive electrode sheet, said battery positive electrode is composed of LiFePO, conductive carbon-black, graphite, adhesive such as PVDF, and solvent such as NMP; a negative electrode sheet, the battery negative electrode is composed of lithium titanate, conductive carbon-black, graphite, adhesive such as PVDF, and solvent such as NMP. The cylindrical lithium-ion battery made by the invention has a capacity of 400 Ah which is the one reportedly having the largest capacity in the world presently.

Cylindrical single-piece lithium-ion battery of 400Ah and its preparation method

This invention provides a new preparation method of Clopidogrel Hydrogen Sulfate spherical crystal form I, using single 2-butanol as solvent, controlling the concentration, addition way and addition speed of sulfuric acid used to salify to shorten the process time, thus separating out Clopidogrel Hydrogen Sulfate from solution system stably with spherality. And the Clopidogrel Hydrogen Sulfate obtained complies with the requirements of the follow-up process on residual solvent, bulk density and mobility.

Method for preparing spherical Clopidogrel Hydrogen Sulfate polymorph I

Growing community of inventors

Tianjin, China

Qi Wang