In situ inorganic conductive network formation in high-voltage single-crystal Ni-rich cathodes.

ABSTRACT: High nickel content in LiNi_xCo_yMn_zO₂ (NCM, x ≥ 0.8, x + y + z = 1) layered cathode material allows high specific energy density in lithium-ion batteries (LIBs). However, Ni-rich NCM cathodes suffer from performance degradation, mechanical and structural instability upon prolonged cell cycling. Although the use of single-crystal Ni-rich NCM can mitigate these drawbacks, the ion-diffusion in large single-crystal particles hamper its rate capability. Herein, we report a strategy to construct an in situ Li_1.4Y_0.4Ti_1.6(PO₄)₃ (LYTP) ion/electron conductive network which interconnects single-crystal LiNi_0.88Co_0.09Mn_0.03O₂ (SC-NCM88) particles. The LYTP net

SUBMITTER: Fan X 

PROVIDER: S-EPMC8423756 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature