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A Renewable Sedimentary Slurry Battery: Preliminary Study in Zinc Electrodes.


ABSTRACT: Low-cost, scalable energy storage is the key to continuing growth of renewable energy technologies. Here a battery with sedimentary slurry electrode (SSE) is proposed. Through the conversion of discrete particles between sedimentary and suspending types, it not only inherits the advantages of semi-solid flow cell but also exhibits high energy density and stable conductive network. Given an example, the zinc SSE (ZSSE) delivers a large discharge capacity of 479.2 mAh g-1 at 10 mA cm-2. More importantly, by renewal of the slurry per 20 cycles, it can run for 112 and 75 cycles before falling below 80% of designed capacity under 10 mA cm-2 (20% DODZn) and 25 mA cm-2 (25% DODZn), respectively. The lost capacity after cycles is able to recover after slurry renewal and the end-of-life SSE can be easily reused by re-formation. The concept of SSE brands a new way for electrochemical energy storage.

SUBMITTER: Liu Y 

PROVIDER: S-EPMC7710632 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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A Renewable Sedimentary Slurry Battery: Preliminary Study in Zinc Electrodes.

Liu Yue Y   Hu Qiyang Q   Zhong Jing J   Wang Zhixing Z   Guo Huajun H   Yan Guochun G   Li Xinhai X   Peng Wenjie W   Wang Jiexi J  

iScience 20201119 12


Low-cost, scalable energy storage is the key to continuing growth of renewable energy technologies. Here a battery with sedimentary slurry electrode (SSE) is proposed. Through the conversion of discrete particles between sedimentary and suspending types, it not only inherits the advantages of semi-solid flow cell but also exhibits high energy density and stable conductive network. Given an example, the zinc SSE (ZSSE) delivers a large discharge capacity of 479.2 mAh g<sup>-1</sup> at 10 mA cm<su  ...[more]

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