Our Solid-State Batteries
Solid-state batteries(SSBs) have the potential to transform rechargeable batteries for vehicle electrification and integration of renewable energy by offering next-generation energy storage devices with higher specific energy at both battery-cell and battery-pack levels, longer cycle life, lower cost and superior safety compared to Li-ion batteries.
Figure Caption: Charge/discharge curves of LiFePO4/Li full cells: (a) cells with a conventional liquid electrolyte as a function of charge/discharge rates (i.e., 0.05C, 0.1C and 0.2C) at room temperature, and (b) cells with a gel polymer electrolyte as a function of charge/discharge rate (i.e., 0.05C, 0.1C and 0.2C) at room temperature. Note that the solid-state batteries provide similar charge/discharge curves as conventional cells with liquid electrolyte.
Solid-state batteries & conventional batteries
Figure Caption: Charge/discharge cycle stability of gel polymer electrolyte (GPE)-enabled solid-state LiFePO4/Li full cells in comparison with LiFePO4/Li full cells with a conventional liquid electrolyte. Note that the GPE-enabled solid-state batteries have the same cycle stability as conventional LiFePO4/Li full cells.
Figure Caption: Newly developed gel polymer electrolytes (GPE-FS and GPE-BF) with fast charge/discharge capability: (a) cycle performance of LiFePO4||GPE-FS||Li and LiFePO4||GPE-BF||Li full cells, charged/discharged at 0.5C with a voltage range of 2.5-4.0 V. (b) and (c) charge-discharge curves of LiFePO4||GPE-FS||Li and LiFePO4||GPE-BF||Li full cells at 10th, 50th and 100th cycles, respectively.
0.02C
0.05C
0.1C
Figure Caption: Charge/discharge curves of NMC622/In-Li full cells with amorphous 1.6Li2O-TaCl5 (LOTC) electrolyte as a function of charge/discharge rates (i.e., 0.02C, 0.05C and 0.1C as indicated) at room temperature.
1st cycle
4th cycle
13th cycle
Figure Caption: Charge/discharge curves of NMC622/Li half cells with conventional liquid electrolyte (1M LiPF6 in EC: DEC: FEC) for comparison with the solid-state NMC622/In-Li batteries shown above.
Figure Caption: Charge/discharge cycle stability of NMC622/In-Li full cells with amorphous 1.6Li2O-TaCl5 (LOTC) electrolyte at room temperature.