Solvent:
Propylene Carbonate PC (Propylene?Carbonate)
Ethylene Carbonate EC (Ethylene?Carbonate)
Dimethyl?Carbonate DEC (Dimethyl?Carbonate)
Methyl ester. Propiolic?Acid1,4 -butylpropyl ester GBL (γ-?Butyrolactone)
Solutes LiPF6 (major) LiBF4 LiClO4 LiAsF6 LiCF3SO3
Solutes:
LiPF6 (major)
LiBF4
LiClO4
LiAsF6
LiCF3SO3
Working Principle:
1, lithium-ion battery structure and working principle: the so-called lithium-ion battery refers to the two compounds can be reversibly embedded and de-embedded lithium ions as a negative and positive electrodes composed of secondary battery. People will rely on the transfer of lithium ions between the positive and negative electrodes to complete the battery charging and discharging work, a unique mechanism of lithium-ion battery image known as "rocking chair battery", commonly known as "lithium". LiCoO2 as an example: (1) battery charging, lithium ions from the positive electrode de-embedded, embedded in the negative electrode, and vice versa when discharging. This requires an electrode in the assembly before the embedded lithium state, generally choose the relative lithium potential is greater than 3V and stable in the air embedded lithium transition metal oxides as the positive electrode, such as LiCoO2, LiNiO2, LiMn2O4, LiFePO4. (2) for the negative electrode of the material is to choose the potential as close as possible to the lithium potential of the lithium compounds can be embedded, such as a variety of carbon materials, including natural graphite, synthetic graphite, carbon fibers, intermediate phase, and the lithium compounds can be embedded in the negative electrode. Graphite, carbon fiber, intermediate-phase spherical carbon, etc. and metal oxides, including SnO, SnO2, tin composite oxide SnBxPyOz (x = 0.4 ~ 0.6, y = 0.6 ~ 0.4, z = (2 + 3x + 5y)/2), etc..