Electrochemical performance of Li-rich cathode material, 0.3Li2MnO3–0.7LiMn1/3Ni1/3Co1/3O2 microspheres with F-doping

Boosting the Electrochemical Performance of Li- and Mn-Rich Cathodes by a Three-in-One Strategy

“…Tremendous efforts have been applied to solve abovementioned problems, such as doping by other transition metal (TM) elements or polyanions, which is effective to obtain excellent cyclability and suppress the abominable voltage fading [13][14][15]. Nevertheless, the incorporated doping of inactive elements usually reduces the reversible capacity.…”

“…On the other hand, some previous works have implied that introducing defects into the LMR cathode materials, like the planar defects of stacking faults, can accommodate strain and stress in the layered crystal grains [16][17][18][19][20]. These defects in the LMR cathodes have been confirmed as active sites during charge and discharge processes, which means that the introduction of appropriate defects in LMR cathode can compensate the capacity loss caused by elemental doping [15]. However, these modification methods have little effect on eliminating the damage caused by stress accumulation during cycling.…”

Advancement of technology towards high-performance non-aqueous aluminum-ion batteries

“…The electrochemical reaction mechanism of Al anode is shown in Eq. (12). The overall reaction Te-Al battery (TAB) is as follows, 5Al…”

“…Lithium-ion batteries (LIBs) have been considered as one of the most major choices for the growing large-scale energy storage system and portable electronic devices, electric automobile in the past decades [6][7][8][9][10]. Nowadays, the commercial positive electrode materials are principally composed of layered LiMn 1ÀxÀy Co x Ni y O 2 [11,12], spinel LiMn 2 O 4 [13,14] or olivine LiFePO 4 [15,16], and the commercial negative electrode materials are mainly carbonbased materials [17][18][19]. The potential of carbon-based anode is very close to that of Li, and the metal Li often separates out on the surface of carbon when the battery is overcharged.…”

Controllable preparation of one-dimensional Li1.2Mn0.54Ni0.13Co0.13O2 cathode materials for high-performance lithium-ion batteries

“…6f, the inset illustrates the corresponding equivalent circuit for tting, where R s , R ct , CPE and Z w correspond to the solution resistance, the charge transfer resistance, the capacitance and the Warburg resistance, respectively. 40,41 Based on the equivalent circuit tting, R s and R ct of the short rods are 9.91 and 110.5 U, respectively, while R s and R ct of the long rods are 10.53 and 240.2 U. According to the slopes (s) of the short (186 U cm 2 s À1/2 ) and long (221 U cm 2 s À1/2 ) rods in Fig.…”