The difference between needle coke and ordinary crude coke for lithium battery negative electrode ma

Lithium batteries contain many materials. Let me explain briefly: 1. Positive electrode: positive electrode material (lithium cobalt oxide, lithium manganate, ternary material) + conductive agent (acetylene black) + adhesive (PVDF) + current collector (aluminum foil) 2. Negative electrode: Graphite + conductive agent (acetylene black) + thickener (CMC) + binder (SBR) + current collector (copper foil) 3. There is a separator between the electrodes positive and negative, which is PE/PP material with holes. Generally, there are single layer, double layer and three layer. 4. Between the positive and negative electrodes is the electrolyte used to conduct electricity. 5. Shell, including aluminum shell and steel shell. 6. Cover plate 7. The materials on it are combined and processed through various processes to form the core of the battery. 8. A protection plateis added to the top of the battery core (to prevent overcharging and overdischarging). 9. After packaging, it becomes a lithium battery seen in the market. In short, it will be clearer if you take apart a used lithium battery yourself and compare it with what I said. However, its production process remains relatively cumbersome and complex. If you have any questions, the host can add more.