Japan engaged in petroleum and petrochemical business, Idemitsu Kosan Company March 8, 2010 announcing that it was accelerating the development of solid-state lithium-ion batteries phosphorus sulfide solid electrolytes (Li2S-P2S5), the company will be officially launched in 2012 solid-state lithium-ion batteries Precision M65 battery , XPS M1210 The new electrolyte.
Idemitsu Kosan Co. as the company confirmed that lithium sulfur rechargeable lithium-ion battery (rechargeable batteries) with the potential electrolyte materials, are currently being evaluated with the PPS resin produced high-purity lithium sulfur technology. Since 2006 the company set out to develop a solid electrolyte based on the material will be highly applicable to hybrid vehicles and electric vehicles, development of the electrolyte, at room temperature, the lithium-ion conductivity of 4 × 10-3S/cm, the equivalent of lithium-ion secondary battery is applied to the use of liquid organic electrolyte.
However, with the liquid organic electrolyte is different from solid electrolyte has an excellent stability, even at high voltage and temperature, it can also resist deterioration or evaporation. Solid electrolyte to avoid security risks, such as solvent leakage and fire, which also has a wide range of construction of technical merits. With Idemitsu Kosan’s development of solid electrolyte batteries are also available at low temperatures below 0 ° C run.
Phosphorus sulfide solid electrolyte can be used a variety of electrode materials, can have a high capacity cathode electrochemical nature.
Idemitsu Kosan has demonstrated with its lithium-sulfide electrolytes A6-size (105 mm × 148 mm) thin-layer solid-state lithium-ion (Li-ion) batteries Inspiron E1405 battery , Inspiron E1505 battery , Inspiron E1705 battery .
With cascade double-click the A6-size battery output voltage 14-16V, solid electrolyte film thickness is about 100 μm, film thickness will further make it 10-20 μm, in order to reduce resistance, and to explore the optimization of electrode materials.