리튬 이온 배터리의 과도한 내부 저항의 원인은 무엇입니까? Posted by batterymanufactory.com
1. Lithium Cell produce process part (1) There is too little conductive agent in the positive electrode ingredients (the conductivity between materials is not good, because the conductivity of lithium cobalt itself is very poor) (2) There are too many binders in the positive electrode ingredients (binders are generally polymer materials with strong insulating properties) (3) There are too many binders in the negative electrode ingredients (the binders are generally polymer materials with strong insulating properties) (4) Uneven distribution of ingredients (5) The binder solvent is incomplete when compounding (not completely soluble in NMP, water) (6) The surface density of coating and drawing is too large (large ion migration distance) (7) The compaction density of the lithium ion battery is too large, and the roller is too compact. (Rolling is too dead, and some of the active material structure is destroyed) (8) The positive lug is not welded firmly, and there is a virtual we...