一种基于GDC-SSC微结构制备具有热循环稳定性SOCs电极的方法

By constructing a GDC-SSC double-coating structure on the air electrode framework, the thermal expansion mismatch and strontium segregation problems of solid oxide batteries are solved, and the cold and hot cycling performance and stability of the battery are improved.

CN121076156BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Filing Date
2025-08-20
Publication Date
2026-07-17

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Abstract

本发明公开一种基于GDC‑SSC微结构制备具有热循环稳定性SOCs电极的方法，包括步骤：(1)配制空气极层丝网印刷浆料，在半电池的GDC阻隔层表面丝网印刷空气极层并烘干，然后进行烧结，得到多孔空气极层；(2)配制GDC浸渍溶液，并对步骤(1)制得的多孔空气极层进行多次GDC浸渍及烧结，得到具有GDC包覆层的空气极层；(3)配制SSC浸渍溶液，并对步骤(2)制得的空气极层进行多次SSC浸渍及烧结，使SSC纳米颗粒在GDC包覆层外沉积，得到具有GDC‑SSC双重包覆结构的空气电极；所述具有GDC‑SSC双层微结构的空气电极中，GDC的负载量为0.2～1.2wt％，SSC的负载量为0.5～1.0wt％。本发明通过在空气极骨架上构建GDC‑SSC双重包覆结构，同时解决了热膨胀失配与锶偏析的问题，从而提高电池的冷热循环性能。
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