High-capacity Organic Rechargeable Battery System without Conductive Additives

Secondary batteries, although being widely used, require further improvement in their performance due to the rapid growth and increasing demand. Conventional battery systems using organic materials require a large amount of conductive additives and results in a decrease of battery capacity owing to their low conductivity.^1,2) Kobayashi et al. reported a rechargeable battery system that is free from conductive additives and can be charged and discharged at high speed by the combination of charge-transfer complex TTF/TCNQ as an electrode and aqueous sodium bromide solution.³⁾ By utilizing the "conductivity-relay system" with charge-transfer complexes and organic radical salts, both of which have high conductivity, it is possible to offer high conductivity to various low-conductivity organic materials. This system is expected to improve the performance further and lower the cost of organic rechargeable batteries.

Related Products

T3034

TCNQ (purified by sublimation)

T0078

TCNQ

T3380

TTF (purified by sublimation)

T0980

TTF

References

• 1) Organic Electrode Materials for Rechargeable Lithium Batteries
  • Y. Liang, Z. Tao, J. Chen, Adv. Energy Mater. 2012, 2, 742.
• 2) Prospects of organic electrode materials for practical lithium batteries
  • Y. Lu, J. Chen, Nat. Rev. Chem. 2020, 4, 127.
• 3) Electrical Conductivity-Relay between Organic Charge-Transfer and Radical Salts toward Conductive Additive-Free Rechargeable Battery
  • Y. Fujihara, H. Kobayashi, S. Takaishi, T. Tomai, M. Yamashita, I. Honma, ACS Appl. Mater. Interfaces 2020, 12, 25748.

Page Top