Improved high rate capability of Li[Li0.2Mn0.534Co0.133Ni0.133]O2 cathode material by surface modification with Co3O4

Nitrogen-Doped Porous Ag–C@Co3O4 Nanocomposite for Boosting Lithium Ion Batteries

“…Sustainable and safe energy-harvesting strategies have been become imperative points in energy storage equipment. , Rechargeable lithium ion batteries (LIBs) have gradually replaced traditional lead–acid and nickel–cadmium batteries and therefore have played an increasingly important role in the battery market. − However, the limited theoretical specific capacity of 372 mAh g –1 of graphite in traditional anode materials of LIBs has outgrown its applications. Hence, it is urgent to find alternative anode materials for LIBs that avoid the sea of growing energy losses. − To implement large-scale application of LIBs, highly capacity anode materials with lower price and stable cycling performance in LIBs are desperately needed. − Transition metal oxides (TMOs) with excellent electrochemical activity are being advanced as promising energy storage materials. , Specifically, the cobalt­(II,III) oxide as an anode material carries a specific capacity of 890 mAh g –1 during the fully lithiated process, which is far more than that of the traditional graphite anode. In addition, Co 3 O 4 shows a good research and application value because of its high electrochemical activity and low cost compared with other M x O y (M = Ni, Cu, Ti, etc.…”

Engineered Changes in Structure and Component from Solid NiS2/Reduced Graphene Oxide to Hollow Ni‐P/Reduced Graphene Oxide and the Enhanced Performance for Lithium‐Ion Batteries

“…In addition, the discharge capacity of H‐Ni‐P/rGO maintained at 504.1 mAh g −1 after 100 cycles. This electrochemical performance of H‐Ni‐P/rGO was not only much better than that of the graphite electrode, but also higher than those of Ni 2 P‐based materials (Table S1, Supporting Information). The discharge capacity of S‐NiS 2 /rGO was only 480.2 mAh g −1 in the first cycle and gradually decreased to 158.7 mAh g −1 after 100 cycles in the same test conditions with H‐Ni‐P/rGO.…”

“…However, as the anode of LIBs, commercial graphite is unsatisfactory because of its limited theoretical capacity of 372 mAh g −1 . To solve the problem, many alternative anode materials with a high theoretical lithium storage capacity have been designed . In these material‐based batteries, certain problems still exist due to the limitations of the inherent working mechanism of lithium‐ion insertion/extraction from the anode electrode, resulting in performance deterioration of LIBs.…”

A Novel Perovskite Electron–Ion Conductive Coating to Simultaneously Enhance Cycling Stability and Rate Capability of Li1.2Ni0.13Co0.13Mn0.54O2 Cathode Material for Lithium‐Ion Batteries

“…[ 61 ] After that, many kinds of metal oxides were used, such as TiO 2 , [ 62 ] V 2 O 5 , [ 63 ] ZnO, [ 64 ] MgO, [ 65 ] MoO 3 , [ 66 ] SnO 2 , [ 67 ] and Co 3 O 4 . [ 68 ] However, due to the intrinsically low electronic and ionic conductivity of metal oxides, the rate capability of LNCMO was not obviously improved. Consequently, lithium‐ion conductors were used as coating materials to improve the ionic conductivity of LNCMO, such as LiMnPO 4 , [ 69 ] Li 4 Ti 5 O 12 , [ 70 ] lithium phosphorus oxynitride (LiPON), [ 71 ] and Li 3 PO 4 .…”