A tellurium iodide perovskite structure enabling eleven-electron transfer in zinc ion batteries

Shixun WANG; Zhiquan WEI; Hu HONG; Xun GUO; Yiqiao WANG; Ze CHEN; Dechao ZHANG; Xiaoyu ZHANG; Xuyong YANG; Chunyi ZHI

doi:10.1038/s41467-024-55385-6

A tellurium iodide perovskite structure enabling eleven-electron transfer in zinc ion batteries

Shixun WANG
, Zhiquan WEI
, Hu HONG
, Xun GUO
, Yiqiao WANG
, Ze CHEN
, Dechao ZHANG
, Xiaoyu ZHANG
, Xuyong YANG^*
, Chunyi ZHI^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

16 Citations (Scopus)

Abstract

The growing potential of low-dimensional metal-halide perovskites as conversion-type cathode materials is limited by electrochemically inert B-site cations, diminishing the battery capacity and energy density. Here, we design a benzyltriethylammonium tellurium iodide perovskite, (BzTEA)2TeI6, as the cathode material, enabling X- and B-site elements with highly reversible chalcogen- and halogen-related redox reactions, respectively. The engineered perovskite can confine active elements, alleviate the shuttle effect and promote the transfer of Cl- on its surface. This allows for the utilization of inert high-valent tellurium cations, eventually realizing a special eleven-electron transfer mode (Te6+/Te4+/Te2-, I+/I0/I-, and Cl0/Cl-) in suitable electrolytes. The Zn||(BzTEA)2TeI6 battery exhibited a high capacity of up to 473 mAh g-1Te/I and a large energy density of 577 Wh kg-1Te/I at 0.5 A g-1, with capacity retention up to 82% after 500 cycles at 3 A g-1. The work sheds light on the design of high-energy batteries utilizing chalcogen-halide perovskite cathodes.

Original language	English
Article number	511
Number of pages	9
Journal	Nature Communications
Volume	16
DOIs	https://doi.org/10.1038/s41467-024-55385-6
Publication status	Published - 8 Jan 2025
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Author(s) 2025.

Funding

C.Z. acknowledges the National Key R&D Program of China under Project 2019YFA0705104, the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. R5019-22, Project No. CityU PDFS2122−1S05, and Project No. CityU 11214023), and the Talent Recruitment Project of Guangdong Province (No. 2019QN01C883). X. Y. acknowledges the National Natural Science Foundation of China (62174104, 12304032), the Shanghai Science and Technology Committee (22YF1413500), and the Program of Shanghai Academic/Technology Research Leader (22XD1421200).

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title = "A tellurium iodide perovskite structure enabling eleven-electron transfer in zinc ion batteries",

abstract = "The growing potential of low-dimensional metal-halide perovskites as conversion-type cathode materials is limited by electrochemically inert B-site cations, diminishing the battery capacity and energy density. Here, we design a benzyltriethylammonium tellurium iodide perovskite, (BzTEA)2TeI6, as the cathode material, enabling X- and B-site elements with highly reversible chalcogen- and halogen-related redox reactions, respectively. The engineered perovskite can confine active elements, alleviate the shuttle effect and promote the transfer of Cl- on its surface. This allows for the utilization of inert high-valent tellurium cations, eventually realizing a special eleven-electron transfer mode (Te6+/Te4+/Te2-, I+/I0/I-, and Cl0/Cl-) in suitable electrolytes. The Zn||(BzTEA)2TeI6 battery exhibited a high capacity of up to 473 mAh g-1Te/I and a large energy density of 577 Wh kg-1Te/I at 0.5 A g-1, with capacity retention up to 82\% after 500 cycles at 3 A g-1. The work sheds light on the design of high-energy batteries utilizing chalcogen-halide perovskite cathodes.",

author = "Shixun WANG and Zhiquan WEI and Hu HONG and Xun GUO and Yiqiao WANG and Ze CHEN and Dechao ZHANG and Xiaoyu ZHANG and Xuyong YANG and Chunyi ZHI",

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AU - WANG, Shixun

AU - WEI, Zhiquan

AU - HONG, Hu

AU - GUO, Xun

AU - WANG, Yiqiao

AU - CHEN, Ze

AU - ZHANG, Dechao

AU - ZHANG, Xiaoyu

AU - YANG, Xuyong

AU - ZHI, Chunyi

PY - 2025/1/8

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N2 - The growing potential of low-dimensional metal-halide perovskites as conversion-type cathode materials is limited by electrochemically inert B-site cations, diminishing the battery capacity and energy density. Here, we design a benzyltriethylammonium tellurium iodide perovskite, (BzTEA)2TeI6, as the cathode material, enabling X- and B-site elements with highly reversible chalcogen- and halogen-related redox reactions, respectively. The engineered perovskite can confine active elements, alleviate the shuttle effect and promote the transfer of Cl- on its surface. This allows for the utilization of inert high-valent tellurium cations, eventually realizing a special eleven-electron transfer mode (Te6+/Te4+/Te2-, I+/I0/I-, and Cl0/Cl-) in suitable electrolytes. The Zn||(BzTEA)2TeI6 battery exhibited a high capacity of up to 473 mAh g-1Te/I and a large energy density of 577 Wh kg-1Te/I at 0.5 A g-1, with capacity retention up to 82% after 500 cycles at 3 A g-1. The work sheds light on the design of high-energy batteries utilizing chalcogen-halide perovskite cathodes.

AB - The growing potential of low-dimensional metal-halide perovskites as conversion-type cathode materials is limited by electrochemically inert B-site cations, diminishing the battery capacity and energy density. Here, we design a benzyltriethylammonium tellurium iodide perovskite, (BzTEA)2TeI6, as the cathode material, enabling X- and B-site elements with highly reversible chalcogen- and halogen-related redox reactions, respectively. The engineered perovskite can confine active elements, alleviate the shuttle effect and promote the transfer of Cl- on its surface. This allows for the utilization of inert high-valent tellurium cations, eventually realizing a special eleven-electron transfer mode (Te6+/Te4+/Te2-, I+/I0/I-, and Cl0/Cl-) in suitable electrolytes. The Zn||(BzTEA)2TeI6 battery exhibited a high capacity of up to 473 mAh g-1Te/I and a large energy density of 577 Wh kg-1Te/I at 0.5 A g-1, with capacity retention up to 82% after 500 cycles at 3 A g-1. The work sheds light on the design of high-energy batteries utilizing chalcogen-halide perovskite cathodes.

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DO - 10.1038/s41467-024-55385-6

M3 - Journal Article (refereed)

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VL - 16

JO - Nature Communications

JF - Nature Communications

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ER -

A tellurium iodide perovskite structure enabling eleven-electron transfer in zinc ion batteries

Abstract

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