To address the issue of low power output of betavoltaic cells in practical applications, a 63Ni-powered betavoltaic rechargeable Zn-ion battery (BRZiB) is presented in this paper for simultaneously harvesting, converting, and storing beta-radioactive energy within one device. Experimentally, a patterned ZnO microrod array nanostructure was prepared using hydrothermal and lithography methods, in which a 63Ni beta source was deposited by chemical plating to form a 63Ni@ZnO structure for betavoltaic power generation. A carbon-coated VO2 nanocomposite (C@VO2), used as the intercalation host for Zn ions, was coated on the betavoltaic structure for fabricating the hybrid cathode of BRZiB. Without using any external power source, the 63Ni-powered BRZiB demonstrated a voltage rise of 0.3 V in 82 h, which was calculated to have an energy conversion efficiency of 5.1% and an energy density of 128 mWh/g over a half-life of 63Ni (∼100 years). The experimental results verify the effectiveness of multi-energy synergistic conversion in the electrochemical betavoltaic system.
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2 December 2024
Research Article|
December 04 2024
Betavoltaic rechargeable Zn-ion battery based on hybrid cathode by combining betavoltaic structure with intercalation host
Zan Ding
;
Zan Ding
(Data curation, Formal analysis, Investigation, Methodology, Writing – original draft)
1
Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University
, Xiamen 361005, China
2
Shenzhen Research Institute of Xiamen University
, Shenzhen 518000, China
3
School of Mechanical Engineering, Guizhou University
, Guiyang, Guizhou 550025, China
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Zexiang Luo;
Zexiang Luo
(Data curation, Investigation)
1
Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University
, Xiamen 361005, China
2
Shenzhen Research Institute of Xiamen University
, Shenzhen 518000, China
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Haisheng San
;
Haisheng San
a)
(Conceptualization, Formal analysis, Methodology, Supervision, Writing – review & editing)
1
Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University
, Xiamen 361005, China
2
Shenzhen Research Institute of Xiamen University
, Shenzhen 518000, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Xue Li;
Xue Li
a)
(Funding acquisition, Project administration)
4
China Institute of Atomic Energy
, Beijing 102413, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Lifeng Zhang
Lifeng Zhang
a)
(Funding acquisition, Project administration)
4
China Institute of Atomic Energy
, Beijing 102413, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Appl. Phys. Lett. 125, 233901 (2024)
Article history
Received:
July 20 2024
Accepted:
November 15 2024
Citation
Zan Ding, Zexiang Luo, Haisheng San, Xue Li, Lifeng Zhang; Betavoltaic rechargeable Zn-ion battery based on hybrid cathode by combining betavoltaic structure with intercalation host. Appl. Phys. Lett. 2 December 2024; 125 (23): 233901. https://doi.org/10.1063/5.0229924
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