An effective way of co-precipitating Ni2+, Mn2+ and Co2+ by using ammonium oxalate as precipitant for Ni-rich Li-ion batteries cathode
Source abstract
Abstract
An oxalate-based hydrothermal approach has been applied to synthesize Ni0.8Mn0.1Co0.1·C2O4·2H2O “mixed oxalate,” and “mixed oxalate” has been lithiated to LiNi0.8Mn0.1Co0.1O2 for Li-ion batteries cathode. Ni2+, Mn2+ and Co2+ can be precipitated quickly and effectively at 100 °C within 20 min without inert gas protection, and it was not needed to control the pH of the solution deliberately. After the “mixed oxalate” was lithiated to LiNi0.8Mn0.1Co0.1O2, as-synthesized LiNi0.8Mn0.1Co0.1O2 can deliver 160–180 mAh g−1 at 1C during long-term cycling and showed one of the best electrochemical performances compared to some Ni-rich or Ni/Mn/Co-contained cathodes synthesized by similar procedures, i.e., higher reversible capacity in rate charge/discharge cycles. Considering the facile synthesis of “mixed oxalate,” this work may give rise to an inspiration for LiNixMnyCo1−x−yO2 cathodes research.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Battery Materials · Supercapacitor Materials and Fabrication · Advanced Battery Materials and Technologies
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References (34)
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