L R AS Published on Monday 24 February 2020 - n° 310 - Categories:R&D , other batteries
Creation of an ultra-fast battery
The CIC energIGUNE research centre has created an "ultra-fast battery". It combines a high energy density with the rapid discharge time usually provided by supercapacitors.
It is a battery based on hard carbon and nickel-manganese-cobalt (NMC) electrodes with a lithium hexafluorophosphate electrolyte.
At an operating voltage of 2.9 to 3.75 V, the battery has been shown to be capable of an energy density of 212 watt-hours per cubic centimetre (Wh / cm3) at a power density of 1,000 W / cm3 in relation to the active mass, with a discharge time of 10 minutes. The system also reached 87 Wh / cm3 at 6,000 W/ cm3, with a discharge timeof 32 seconds. Stability tests at a current density of 1 ampere per gram and a discharge time of 32 seconds showed a capacity reduction of more than 90% after 30,000 cycles.
https://www.pv-magazine.com/2020/02/18/bridging-the-gap-between-battery-and-supercapacitor/
PV Magazine of 18 February
