Porous LiMn2O4 as cathode material with high power and excellent cycling for 
aqueous rechargeable lithium batteries

Qu, Q. T.; Fu, L. J.; Zhan, X. Y.; Samuelis, D.; Maier, J.; Li, L.; Tian, S.; Li, Z. H.; Wu, Y. P.

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Porous LiMn₂O₄ as cathode material with high power and excellent cycling for aqueous rechargeable lithium batteries

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Maier, J.
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Qu, Q. T., Fu, L. J., Zhan, X. Y., Samuelis, D., Maier, J., Li, L., et al. (2011). Porous LiMn₂O₄ as cathode material with high power and excellent cycling for aqueous rechargeable lithium batteries. Energy & Environmental Science, 4(10), 3985-3990.

Cite as: https://hdl.handle.net/21.11116/0000-000E-BE01-B

Abstract

A porous LiMn(2)O(4) consisting of nano grains was prepared by using polystyrene as template. It was studied as a cathode material for aqueous rechargeable lithium batteries (ARLBs) using 0.5 mol l(-1) Li(2)SO(4) aqueous solution as the electrolyte. Charge and discharge capacities at a current density of 10 A g(-1) (about 90C) were 76% and 95% of the total capacity (118 mAh g(-1)), respectively. The power density can be up to 10000 W kg(-1) and the cycling behavior is excellent. After 10000 cycles at 9C with 100% DOD (depth of discharge), the capacity retention of porous LiMn(2)O(4) is 93%, which indicates that it can be used for a lifetime without maintenance. The main reasons for its excellent electrochemical performance are due to the nano grains, porous morphology and high crystalline structure. In addition, the acid-free aqueous electrolyte prevents Mn(2+) from dissolution. These excellent results suggest a great promise for the development of aqueous rechargeable lithium batteries (ARLBs) in practical application.