In order to be put into practical use after 2020, research on all-solid-state batteries is in full swing. About its performance, is the indicator of the diffusion rate of lithium (Li) - the ionic conductivity of solid electrolytes. The ionic conductivity of the conventional electrolyte is about 10-3 S/cm. In 2011, a research team led by Toshiyuki Noda, a professor at the Graduate School of Integrated Science and Engineering at Tokyo Institute of Technology, discovered a solid electrolyte with an ionic conductivity comparable to that of an electrolyte, which greatly accelerated the development of all-solid-state batteries. On March 22, 2016, solid electrolytes made a major breakthrough. Kanno personally announced the discovery of a record-breaking solid electrolyte. In collaboration with Toyota, High Energy Acceleration Research Institute, and other research institutes in Kanno, we have developed electrolytes with twice the lithium ion conductivity. The newly developed solid electrolyte is a sulphide material with a composition of Li9.54 Si1.74 P1.44 S11.7 Cl0.3 and a lithium ion conductivity of 2.5×10 −2 S/cm at 27° C. in a solid electrolyte. Very high (Figure). Previously, the solid electrolyte with the highest lithium ion conductivity was developed based on Li10GeP2S12 (LGPS) developed by Kanno et al. in 2011, and its lithium ion conductivity was 1.2 to 1.4×10-2S/cm. A research group led by Tokyo Institute of Technology, Professor Kenno Ichino, discovered a solid electrolyte with twice the lithium ion conductivity. Kanno et al. prototyped the "all-solid ceramic battery" using these materials, and confirmed that its output density was more than three times that of conventional lithium-ion secondary batteries and its energy density was more than twice that of conventional lithium-ion secondary batteries. In the temperature range of −30° C. to 100° C., the charge/discharge characteristics of this trial battery were 200 to 1,000 times, and the capacity did not substantially decrease. Moreover, after charging and discharging 1000 times, the ratio of each charging capacity to the discharging capacity - the charging and discharging efficiency is also basically 100%. CHTA Series High-Pressure Boiler Feed Pump Anti-Corrosive Boiler Feed Pump,Feedwater Boiler Pump,Industrial Boiler Feed Pump,High Pressure Boiler Feed Pump Shenyang pump products sales co., LTD , https://www.syipsc.com
Figure: Ion conductivity increases to 2x
3 times the output density of all solid state batteries