Time：Dec 12, 2022 Views：682
Positive material: LiMn2O4, negative material: graphite
During charging, Li+in the positive electrode and Li+in the electrolyte gather towards the negative electrode to obtain electrons, which are reduced to Li embedded in the carbon material of the negative electrode. During discharge, Li embedded in the negative carbon material loses electrons, enters the electrolyte, and Li+in the electrolyte moves to the positive electrode.
3. Composition principle of lithium battery
① Positive pole construction
LiMn2O4 (lithium manganate)+conductive agent (acetylene black)+adhesive (PVDF)+collector (aluminum foil) cathode
② Negative pole structure
Graphite+conductive agent (acetylene black)+adhesive (PVDF)+collector (copper foil) cathode
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