(1) the cathode
　　Lithium lithium battery negative extremely lithium metal, due to the reaction with water can change drastically, so in the process of lithium-ion battery production must stay very dry (relative humidity is less than 2%). Lithium battery in the utilization of active material of lithium is as high as 100%, pure lithium is used as the anode, the purity of lithium should be greater than 99.9%, the main impurity for sodium, potassium and calcium oxide, its content is less than 0.015%, 0.01% and 0.06 & respectively. For high temperature battery, use lithium alloy, such as lithium lithium lithium aluminum, silicon and boron alloy, etc.
　　Lithium anode are mainly chip, paste and electroplating three forms. Chip lithium anode is by two lithium pills with roller pressure on both sides of the silver or nickel net mesh. Paste type lithium anode is less than 20 microns lithium powder granularity and 10 microns nickel powder, carboxymethyl cellulose (2% dimethylsulfoxide solution) mixture of mineral oil slurry coating in nickel net, pressure. Plating type electrode, electroplating in LiAlCl4 electrolyte, if add Ming Dan dyes in order to improve the bond strength of coating, etc.
　　(2) the positive
　　Polymer lithium-ion batteries for a wide range of lithium battery cathode active material. The choice of the positive active material should be considered:
　　(1) and lithium good match;
　　(2) good compatibility with electrolyte solution, insoluble or not react with the electrolyte;
　　(3) the positive electrode potential;
　　(4) is higher than energy;
　　5. Electrical conductivity as well as possible, to the poor conductivity of active material, by adding graphite and acetylene black conductive material to be modified. Commonly used anode material (FCx) n, MnO2, Bi2O3, SOCl2, I2, SO2, V3O6, CuS, FeS, FeS2, CuO and TiS2, etc.
　　(3) electrolyte
　　Because lithium react with water can change drastically, lithium batteries must use non aqueous electrolyte. Non-aqueous solvents should have the following features:
　　(1) cannot react with positive and negative active material;
　　(2) good ionic conductivity;
　　(3) working in the battery temperature range is the density of its liquid.
　　Non aqueous electrolyte including organic electrolyte solution, inorganic electrolyte solution and the molten salt system.
　　Inorganic electrolytes have LiAlCl4 thionyl chloride (SOCl2) solution, LiAlCl4 sulfuryl chloride (SO2Cl2) solution, the solvent in electrolyte solution as solvent, and the positive active material.
　　Commonly used organic solvent acetonitrile (AN), gamma butyrolactone (BL), 1, 2 - dimethoxy ethane (1, 2 - DME), propylene carbonate (PC) and tetrahydrofuran (THF), etc. Due to the poor conductivity of organic solvent, adding suitable amount of lithium in order to improve the electrical conductivity, the commonly used lithium salt LICl, LiBr, LiAlCl4, LiClO44, LiBF4 and LiAsF6, etc.
　　The advantage of molten salt electrolyte is high ionic conductivity, polarization of electrode reaction is small. Commonly used with LiCl - KCl molten salt electrolyte and LiF LiI - LiCl, etc.