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How The Phone Charger Works
Jul 25, 2017

Say to the lithium ion battery, first to simple introduce, the so-called lithium ion battery is used to suck, hidden from the carbon material as a cathode active material of lithium ion batteries, lithium ion symbols for Li - ion. You know that as batteries, it is generally composed of positive, negative, diaphragmatic, electrolyte and so on. So these materials used for lithium ion batteries are usually the following substances: 

Anode: lithium cobalt oxide (LiCoO2), lithium nickel (LiNiO2) lithium manganese acid (LiMn 2 O 4), etc. 

Negative pole: artificial graphite series, natural graphite series, coke series and so on; 

Diaphragm: single or multi-layer microporous membrane composed of polyethylene (PE) and polypropylene (PP); 

Electrolyte: propylene carbonate (PC) and ethylene carbonate (EC) and dimethyl carbonate (DMC), diethyl carbonate (DEC), methyl ethyl carbonate (MEC) of one yuan, binary or ternary mixtures 

Most lithium-ion batteries sold in the market are made of lithium cobalt oxide, which is a negative battery.

The working mechanism of li-ion battery is that when the battery is charged, the lithium in the anode material is dissolved into ions and embedded into the anode modified graphite layer. When the battery is discharged, the lithium ions are removed from the graphite layer, which passes through the isolation film to the layered structure of the anode cobalt oxide. Over charge and discharge of the lithium ion of embedding and emerge from the positive and negative, and so have they called the "rocking-chair batteries" lithium ion battery monomer of the rated voltage of 3.6 V, charging limit voltage of 4.2 V, discharge limit voltage of 2.5 V.