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Ce4+ 掺杂调控O3-NaNi1/3 Fe1/3 Mn1/3 O2 正极材料的可逆相变与晶格畸变抑制 ...
针对O3-NaNi1/3 Fe1/3 Mn1/3 O2 (NFM)正极材料倍率性能差、循环稳定性不足的问题,研究人员通过Ce4+ 掺杂策略,成功构建了NFMC1材料。实验表明,Ce-O键的形成扩展了层间距,促进Na+ 扩散,提升O3-P3-O3相变可逆性,抑制晶格畸变,使材料在5C循环300次后仍保持75.96%容量 ...
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