ARTICLES

Cathode: In Lithium-ion battery, electricity is generated through chemical reactions of lithium. Thus, Lithium is an essential component of cathode, however, lithium is very unstable (reactive) in the element form, thus the combination of lithium and oxygen, i.e., lithium oxide is used for cathode. Typically, cathode is made from a chemical compound such as lithium- cobalt oxide (LiCoO2) or lithium iron phosphate (LiFePO4).

Electrolyte: Sits between the two electrodes to allow the movement of lithium ions between the two electrodes, however the electrolyte doesn’t let electrons to pass. The electrolyte primarily includes salts and solvents. Salts act as a passage for lithium ion and solvents are organic liquid used to dissolve the salt.

Separator: Placed between the two electrodes to block the flow of electrons inside the battery and prevent short-circuiting, further the separator includes dense micropores to allow the lithium ions to pass through. Typically, separators are made of polypropylene (PP), polyethylene (PE) and other plastics.

Anode: Typically made from carbon (graphite), primarily due to its structural stability, low electrochemical reactivity, high lithium- ion holding capacity, etc.