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Buried powder for sintering lithium garnet type electrolyte and method for preparing lithium garnet type electrolyte by using buried powder
The invention provides buried powder for sintering a lithium garnet type electrolyte, a method for preparing the lithium garnet type electrolyte by using the buried powder, the lithium garnet type electrolyte prepared by the preparation method and a lithium ion battery comprising the lithium garnet type electrolyte. The buried powder for sintering the lithium garnet type electrolyte comprises a buried powder main phase and a buried powder additive. By using the sintering buried powder, a reversibly controlled sintering atmosphere can be provided for LLZO sintering, LLZO with the relative density exceeding 96% and the ionic conductivity exceeding 0.4 mS.cm <-1 > is obtained, and the density and the ionic conductivity are high; the buried powder for sintering the lithium garnet type electrolyte solves the problems of low electrolyte density caused by insufficient sintering atmosphere Li2O and abnormal growth of electrolyte grains caused by excessive Li2O atmosphere.
本发明提供一种锂石榴石型电解质烧结用埋粉、使用该埋粉制备锂石榴石型电解质的方法、由该制备方法制备的锂石榴石型电解质以及包括该锂石榴石型电解质的锂离子电池。所述锂石榴石型电解质烧结用埋粉包括埋粉主相和埋粉添加剂。使用本发明的烧结埋粉可以为LLZO烧结提供可逆控制的烧结气氛，获得具有相对密度超过96％、离子电导率超过0.4mS·cm‑1的LLZO，高致密度和离子电导率；本发明的锂石榴石型电解质烧结用埋粉解决了烧结气氛Li2O气氛的不足导致的电解质致密度低以及Li2O气氛过量导致的电解质晶粒异常生长的问题。
Buried powder for sintering lithium garnet type electrolyte and method for preparing lithium garnet type electrolyte by using buried powder
The invention provides buried powder for sintering a lithium garnet type electrolyte, a method for preparing the lithium garnet type electrolyte by using the buried powder, the lithium garnet type electrolyte prepared by the preparation method and a lithium ion battery comprising the lithium garnet type electrolyte. The buried powder for sintering the lithium garnet type electrolyte comprises a buried powder main phase and a buried powder additive. By using the sintering buried powder, a reversibly controlled sintering atmosphere can be provided for LLZO sintering, LLZO with the relative density exceeding 96% and the ionic conductivity exceeding 0.4 mS.cm <-1 > is obtained, and the density and the ionic conductivity are high; the buried powder for sintering the lithium garnet type electrolyte solves the problems of low electrolyte density caused by insufficient sintering atmosphere Li2O and abnormal growth of electrolyte grains caused by excessive Li2O atmosphere.
本发明提供一种锂石榴石型电解质烧结用埋粉、使用该埋粉制备锂石榴石型电解质的方法、由该制备方法制备的锂石榴石型电解质以及包括该锂石榴石型电解质的锂离子电池。所述锂石榴石型电解质烧结用埋粉包括埋粉主相和埋粉添加剂。使用本发明的烧结埋粉可以为LLZO烧结提供可逆控制的烧结气氛，获得具有相对密度超过96％、离子电导率超过0.4mS·cm‑1的LLZO，高致密度和离子电导率；本发明的锂石榴石型电解质烧结用埋粉解决了烧结气氛Li2O气氛的不足导致的电解质致密度低以及Li2O气氛过量导致的电解质晶粒异常生长的问题。
Buried powder for sintering lithium garnet type electrolyte and method for preparing lithium garnet type electrolyte by using buried powder
一种锂石榴石型电解质烧结用埋粉和使用该埋粉制备锂石榴石型电解质的方法
WEN ZHAOYIN (author) / ZHENG CHUJUN (author) / JIN JUN (author) / WEN JIANJUN (author)
2023-12-22
Patent
Electronic Resource
Chinese
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