Insight into the interaction between Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode and BF4−-introducing electrolyte at 4.5 V high voltage

UiO-66 type metal-organic framework as a multifunctional additive to enhance the interfacial stability of Ni-rich layered cathode material

“…This structural change is also identified by the peak shift in XRD patterns (Fig. S9), that is, the left https://engine.scichina.com/doi/10.1016/j.jechem.2020.03.049 shift of (003) peak and right shift of (101) peak after 100 cycles, which means the expansion of the c -axis and contraction of the a -axis resulting from structural transition [39] . Overall, the results about surface microstructure change, as shown in Fig.…”

The mechanism of side reaction induced capacity fading of Ni-rich cathode materials for lithium ion batteries

“…On the other hand, the commercial electrolyte with an essential component of LiPF 6 is unstable and decomposable under high cut-off voltage [25][26][27]. Meanwhile, the surface Ni 2+ of layered materials will be oxidized to catalytic Ni 4+ at such high voltage, further boosting the decomposition of LiPF 6 .…”

Designing positive electrodes with high energy density for lithium-ion batteries

“…For example, a B 2 O 3coated nickel-rich layered oxide retained 85% of its capacity aer 200 cycles, signicantly more than that of a pristine compound (68%). 70 Another effective approach for the formation of a CEI is to utilize the oxidative decomposition of electrolytes or its additives that contain specic elements, such as boron, 41,[78][79][80][81][82][202][203][204][205][206][207] silicon, 203,206,[208][209][210][211][212] phosphorous, [83][84][85][86]207,[209][210][211][213][214][215][216][217][218][219][220][221] sulfur, 87,204,205,211,[222][223][224][225][226][227][228]…”