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一种金属卤素协同调控的W掺杂NaSbS基硫化物固体电解质及其制备方法、全固态钠离子电池
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10Claims · 3 independent
§ Ⅰ
Dossier Overview
Inventor
吴敬华; 杨一帆; 姚霞银; 刘文壮; 秦恩博
Filing Date
Aug 17, 2026
Publication Date
Oct 20, 2026
IPC Classification
H01M 10/0562 (2010.01)H01M 10/054 (2010.01)C01G 41/00 (2006.01)
本发明属于固体电解质技术领域,涉及一种金属卤素协同调控的W掺杂NaSbS基硫化物固体电解质及其制备方法、全固态钠离子电池。所述硫化物固体电解质的化学组成为NaSbWMSX,其中,M选自Y、Sc中一种或两种;X选自F、Cl、Br中的一种或多种;0<x≤0.3。本发明采用卤素元素和M金属元素协同调控能够在保持或提高W掺杂NaSbS基硫化物固体电解质高离子电导率的同时,提高其与金属钠或钠合金负极之间的界面稳定性,减缓循环过程中的界面阻抗增长和电池极化,从而改善全固态钠离子电池的循环稳定性。
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