Layered Li[Ni0.5Co0.2Mn0.3]O2–Li2MnO3 core–shell structured cathode material with excellent stability

An Ostwald ripening route towards Ni-rich layered cathode material with cobalt-rich surface for lithium ion battery

“…As one of the main energy resources, lithium ion battery has many advantages such as high energy density and long cycle life [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. With the higher cruising range demands of vehicles, Ni-based lithium transition metal oxide cathode materials with high energy density have become one of the currently significant research hotspots [20][21][22][23]. Nibased cathode materials are capable of delivering capacity over 200 mA h g −1 and energy density of 800 W h kg −1 [24].…”

Improved high voltage electrochemical performance of Li2ZrO3-coated LiNi0.5Co0.2Mn0.3O2 cathode material

“…8a, all the 12 samples exhibit gradual drops of discharge capacity with the increase of the 13 current density. However, the 1 wt.% LZO-coated sample presents distinct 14 improved rate capability in comparison with the bare sample at high rates, 15 especially at 5 C and 10 C. When cycled at 0.5 C again, 1 wt.% LZO-coated sample 16 can still deliver a higher capacity of 186.5 mAh g -1 than the bare one (180.2 mAh 17 g -1 ), implying that a more stable structure of LiNi0.5Co0.2Mn0.3O2 can be obtained 18 by Li2ZrO3 coating layer [38]. The typical discharge curves of the bare and 1 wt.% LiNi0.5Co0.2Mn0.3O2 cathode is much better than that of the bare one.…”

Improvement of Electrochemical Properties and Thermal Stability of a Ni-rich Cathode Material by Polypropylene Coating

“…The contact area undergoing HF attack is reduced. Therefore, it is possible to improve structural instability by reducing transition metals elution [12,13]. Fig.…”