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Nb-doped LLZO solid electrolyte and preparation method thereof
The invention belongs to the technical field of lithium ion batteries, and particularly relates to an Nb-doped LLZO solid electrolyte and a preparation method thereof. The LLZO solid electrolyte is Li < 6.8 > La < 3 > Zr < 1.8 > Nb < 0.2 > O < 12 >. According to the preparation method, Nb-doped LLZO nano powder is prepared by adopting a sol-gel method, and the Nb-doped LLZO solid electrolyte sheet is prepared by combining normal-pressure sintering. The electrochemical performance of the solid electrolyte is changed through Nb element doping, the LLZO solid electrolyte with the single-doped Nb element occupying the Zr site is obtained, and the solid electrolyte is of a stable cubic phase structure at the room temperature.
本发明属于锂离子电池的技术领域，具体的涉及一种Nb掺杂的LLZO固态电解质及其制备方法。该LLZO固态电解质为Li6.8La3Zr1.8Nb0.2O12。本发明采用溶胶‑凝胶法制备了Nb掺杂的LLZO纳米粉体，在结合常压烧结制备得到Nb掺杂LLZO固态电解质片。通过Nb元素掺杂改变固态电解质的电化学性能，得到单掺杂Nb元素占据Zr位的LLZO固态电解质，该固态电解质在室温下为稳定的立方相结构。
Nb-doped LLZO solid electrolyte and preparation method thereof
The invention belongs to the technical field of lithium ion batteries, and particularly relates to an Nb-doped LLZO solid electrolyte and a preparation method thereof. The LLZO solid electrolyte is Li < 6.8 > La < 3 > Zr < 1.8 > Nb < 0.2 > O < 12 >. According to the preparation method, Nb-doped LLZO nano powder is prepared by adopting a sol-gel method, and the Nb-doped LLZO solid electrolyte sheet is prepared by combining normal-pressure sintering. The electrochemical performance of the solid electrolyte is changed through Nb element doping, the LLZO solid electrolyte with the single-doped Nb element occupying the Zr site is obtained, and the solid electrolyte is of a stable cubic phase structure at the room temperature.
本发明属于锂离子电池的技术领域，具体的涉及一种Nb掺杂的LLZO固态电解质及其制备方法。该LLZO固态电解质为Li6.8La3Zr1.8Nb0.2O12。本发明采用溶胶‑凝胶法制备了Nb掺杂的LLZO纳米粉体，在结合常压烧结制备得到Nb掺杂LLZO固态电解质片。通过Nb元素掺杂改变固态电解质的电化学性能，得到单掺杂Nb元素占据Zr位的LLZO固态电解质，该固态电解质在室温下为稳定的立方相结构。
Nb-doped LLZO solid electrolyte and preparation method thereof
一种Nb掺杂的LLZO固态电解质及其制备方法
LI JUN (Autor:in) / WANG FUZHONG (Autor:in) / GAO TAO (Autor:in) / ZHAN DALIN (Autor:in)
03.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C04B
Kalk
,
LIME
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