Both mobile phone and laptop batteries are used for charging. Lithium batteries are divided into two categories: lithium batteries and lithium batteries, but they are usually called lithium batteries. Due to their danger, pure lithium batteries are more widely used in daily electronic products. Less. Learn more about the working principle and structure of lithium batteries with photos today, and fully understand lithium batteries.
Lithium-ion battery construction Have a general understanding of the working principle of lithium-ion batteries.
The components of a lithium-ion battery are as follows:
Positive electrode-active material is usually lithium manganese oxide or lithium cobalt oxide, nickel cobalt lithium manganate material, electric bicycles usually use nickel cobalt lithium manganate (commonly known as 3 yuan) or 3 yuan plus a small amount of lithium manganate, pure manganese acid Lithium and lithium iron phosphate are large in size, poor in performance, and high in cost. The thickness of the electrode solution for electrolytic aluminum foil is 10-20 microns.
(2) Diaphragm - a specially shaped polymer film with a microporous structure that allows lithium ions to pass through freely, but electrons cannot pass through.
(3) Negative electrode - the active material is graphite, or carbon similar to graphite structure, and electrolytic copper foil with a thickness of 7-15 microns is used to conduct electricity.
Organic electrolyte - dissolve the carbonate solvent with lithium 6 fluorophosphate, and dissolve the polymer with gel electrolyte.
(5) Battery casing - divided into steel casing (seldom used in square shape), aluminum casing, nickel-plated iron casing (used for cylindrical batteries), aluminum-plastic film (soft packaging), etc. There is also a battery cover, which is also the lead-out of the positive and negative electrodes of the battery end.