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Battery materials including P2-type layered materials for electrochemical devices
Battery materials including P2-type layered materials for electrochemical devices
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机译:电池材料,包括用于电化学装置的P2型分层材料
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摘要
The present invention generally relates to P2-type layered materials for electrochemical devices such as Na-ion batteries with high rate performance, and methods of making or using such materials. In some embodiments, the P2-type layered material has the chemical formula NaX(MnQFeRCoT)O2. The P2-type layered material may be synthesized, for example, by a solid state reaction. In some cases, the P2-type layered material may be used as an electrode in an electrochemical device. The electrochemical device may have higher initial discharge capacities at various charge/discharge rates in galvanostatic testing compared with the initial discharge capacities of other P2-type layered materials.
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机译:本发明总体上涉及具有高倍率性能的用于电化学装置例如Na离子电池的P 2型层状材料,以及制备或使用这种材料的方法。在一些实施方案中,P 2型层状材料具有化学式Na X Sub>(Mn Q Sub> Fe R Sub> Co T Sub >)O 2 Sub>。 P2型层状材料可以例如通过固相反应合成。在某些情况下,P 2型层状材料可以用作电化学装置中的电极。与其它P 2型层状材料的初始放电容量相比,在恒电流测试中,该电化学装置在各种充电/放电速率下可能具有更高的初始放电容量。
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