使用固体电解质的固态锂电池在安全性和循环性等方面具有明显优势,已成为锂电池的重要研究方向。固体电解质类型众多,其中石榴石型固体电解质锆酸镧锂(Li7La3Zr2O12)具有与金属锂接触稳定、电化学性能稳定等特点,在固态锂电池领域具有潜在的研究价值。综述了固体电解质Li7La3Zr2O12的掺杂改性,如Li位、La位、Zr位以及双位的掺杂改性,介绍了Li7La3Zr2O12在锂硫电池中的应用,指出了该材料面临的挑战并对其发展前景进行了展望。
Solid-state lithium batteries with solid electrolytes have obvious advantages in terms of safety and recyclability,and have become an important research direction for lithium batteries.There are many types of solid electrolyte,among which garnet-type solid electrolyte Li7La3Zr2O12 has potential research value in the field of solid lithium batteries due to its excellent stability with Li metal and excellent electrochemical performance.The doping modification of Li7La3Zr2O12 including Li,La,Zr,and double site were reviewed,and the application of Li7La3Zr2O12 in lithium-sulfur battery was introduced.Finally,the challenges and the development prospects of Li7La3Zr2O12 was discussed.
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基金资助
广东省科技计划项目(2017B010119002);广州市科技计划项目(201704030031,201803030015)
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