English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Various nickel and magnesium dual-doped LiNi  x  Mg 0.08 Mn 1.92− x  O 4  ( x  ≤ 0.15) were synthesized via a modified solid-state combustion method. All as-prepared samples show typical spinel phase with a well-defined polyhedron morphology. The Ni-Mg dual-doping obviously decreases the lattice parameter that gives rise to the lattice contraction. Owing to the synergistic merits of metal ions co-doping, the optimized LiNi 0.03 Mg 0.08 Mn 1.89 O 4  delivers high initial capacity of 115.9 and 92.9 mAh·g −1 , whilst retains 77.1 and 69.7 mAh·g −1  after 1000 cycles at 1 C and high current rate of 20 C, respectively. Even at 10 C and 55 °C, the LiNi 0.03 Mg 0.08 Mn 1.89 O 4  also has a discharge capacity of 92.2 mAh·g −1  and endures 500 cycles long-term life. Such excellent results are contributed to the fast Li +  diffusion and robust structure stability. The anatomical analysis of the 1000 long-cycled LiNi 0.03 Mg 0.08 Mn 1.89 O 4  electrode further demonstrates the stable spinel structure via the mitigation of Jahn-Teller effect. Hence, the Ni-Mg co-doping can be a potential strategy to improve the high-rate capability and long cycle properties of cathode materials.

Enhancing the durable performance of LiMn2O4 at high-rate and elevated temperature by nickel-magnesium dual doping