Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Preparation formula and process of Na-beta ''-Al2O3 ceramic solid electrolyte
The invention provides a preparation formula of a Na-beta ''-Al2O3 ceramic solid electrolyte. The Na-beta''-Al2O3 ceramic solid electrolyte comprises an aluminum source, a sodium source and a lithium source, wherein the aluminum source is a raw material of which the main phase is gamma-Al2O3 after calcination; the sodium source is a raw material of which the main phase is Na2O after calcination; the lithium source is a raw material of which the main phase is Li2O after calcination; the aluminum source, the sodium source and the lithium source are prepared from the following components in percentage by weight: 37.5%-90% of gamma-Al2O3, 8%-10.5% of Na2O and 0.5%-2% of Li2O, and the gamma-Al2O3 and the Na2O are weighed after being calculated according to the mass ratio of (8.5-9.5): 1. The invention also provides a preparation process of the formula, which comprises the following steps: 1) weighing a lithium source according to the mass percent of Li2O of 0.5-2%, and preparing a lithium salt solution; 2) weighing the aluminum source and the sodium source according to the mass percentage; 3) mixing the obtained lithium salt solution with an aluminum source and a sodium source, and granulating; (4) calcining the obtained granules to obtain mixed powder mainly containing a beta phase; 5) preparing the obtained mixed powder into a green body; and (6) firing the obtained green body into a green body. According to the formula and the process, a lithium stabilizing system is adopted, and the prepared ceramic solid electrolyte is excellent in performance and easy to produce in batches.
本发明提供一种Na‑β"‑Al2O3陶瓷固体电解质的制备配方，包含铝源、钠源和锂源：所述铝源即煅烧后主要相为γ‑Al2O3的原材料；所述钠源即煅烧后主要相为Na2O的原材料；所述锂源即煅烧后主要相为Li2O的原材料；所述铝源、钠源和锂源按重量百分含量：γ‑Al2O387.5％～90％、Na2O 8％～10.5％、Li2O 0.5％～2％、γ‑Al2O3和Na2O的质量比为8.5～9.5:1计算后称取。本发明同时提供该配方的制备工艺，包括：1)按Li2O质量百分比0.5％～2％称取锂源，配置锂盐溶液；2)按前述质量百分比称取铝源以及钠源；3)将所得锂盐溶液与铝源与钠源混合造粒；4)对所得造粒进行煅烧，得到以β"相为主的混合粉料；5)将所得混合粉料制成生坯；6)将所得生坯烧制成熟坯。本配方和工艺采用锂稳定体系，制得的陶瓷固体电解质性能优异，易于批量化生产。
Preparation formula and process of Na-beta ''-Al2O3 ceramic solid electrolyte
The invention provides a preparation formula of a Na-beta ''-Al2O3 ceramic solid electrolyte. The Na-beta''-Al2O3 ceramic solid electrolyte comprises an aluminum source, a sodium source and a lithium source, wherein the aluminum source is a raw material of which the main phase is gamma-Al2O3 after calcination; the sodium source is a raw material of which the main phase is Na2O after calcination; the lithium source is a raw material of which the main phase is Li2O after calcination; the aluminum source, the sodium source and the lithium source are prepared from the following components in percentage by weight: 37.5%-90% of gamma-Al2O3, 8%-10.5% of Na2O and 0.5%-2% of Li2O, and the gamma-Al2O3 and the Na2O are weighed after being calculated according to the mass ratio of (8.5-9.5): 1. The invention also provides a preparation process of the formula, which comprises the following steps: 1) weighing a lithium source according to the mass percent of Li2O of 0.5-2%, and preparing a lithium salt solution; 2) weighing the aluminum source and the sodium source according to the mass percentage; 3) mixing the obtained lithium salt solution with an aluminum source and a sodium source, and granulating; (4) calcining the obtained granules to obtain mixed powder mainly containing a beta phase; 5) preparing the obtained mixed powder into a green body; and (6) firing the obtained green body into a green body. According to the formula and the process, a lithium stabilizing system is adopted, and the prepared ceramic solid electrolyte is excellent in performance and easy to produce in batches.
本发明提供一种Na‑β"‑Al2O3陶瓷固体电解质的制备配方，包含铝源、钠源和锂源：所述铝源即煅烧后主要相为γ‑Al2O3的原材料；所述钠源即煅烧后主要相为Na2O的原材料；所述锂源即煅烧后主要相为Li2O的原材料；所述铝源、钠源和锂源按重量百分含量：γ‑Al2O387.5％～90％、Na2O 8％～10.5％、Li2O 0.5％～2％、γ‑Al2O3和Na2O的质量比为8.5～9.5:1计算后称取。本发明同时提供该配方的制备工艺，包括：1)按Li2O质量百分比0.5％～2％称取锂源，配置锂盐溶液；2)按前述质量百分比称取铝源以及钠源；3)将所得锂盐溶液与铝源与钠源混合造粒；4)对所得造粒进行煅烧，得到以β"相为主的混合粉料；5)将所得混合粉料制成生坯；6)将所得生坯烧制成熟坯。本配方和工艺采用锂稳定体系，制得的陶瓷固体电解质性能优异，易于批量化生产。
Preparation formula and process of Na-beta ''-Al2O3 ceramic solid electrolyte
一种Na-β"-Al2O3陶瓷固体电解质的制备配方及工艺
WANG HAO (Autor:in) / YU ZHENJIANG (Autor:in) / GUO KUANHONG (Autor:in) / ZHANG GUOXIAO (Autor:in) / LIU FANGJUN (Autor:in)
12.03.2024
Patent
Elektronische Ressource
Chinesisch
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