Abstract Lithium-rich oxides (LRM) became appealing during the past several years by virtue of the low cost and high discharge capacity. It is regrettable that the application of LRM in… Click to show full abstract
Abstract Lithium-rich oxides (LRM) became appealing during the past several years by virtue of the low cost and high discharge capacity. It is regrettable that the application of LRM in Lithium-ion batteries is limited due to the low Octahedral-site stabilization energy (OSSE) of Mn3+ and the dissolution of Mn and Ni. Hence, the Al2O3-modified LRM (Al-LRM) was prepared via a low temperature melting impregnation method. The specific capacity of Al-LRM is 233.6 mAh g−1, correspond to a capacity retention of 89.2% after 100 cycles. Even current up to 1 A g−1, the discharging capacity of Al-LRM is 127.2 mAh g−1 with the capacity retention of 83.6% after 300 cycles.
               
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