Promoting reversibility of layered potassium cathode through interstitial doping

Xuan Xu; Xun Lu Li; Muhammad Mominur Rahman; Jian Bao; Rui Jie Luo; Cui Ma; Chong Yu Du; Jie Zeng; Zhe Mei; Zhe Qian; Enyuan Hu; Yong Ning Zhou

doi:10.1016/j.cej.2023.147021

Promoting reversibility of layered potassium cathode through interstitial doping

Xuan Xu, Xun Lu Li, Muhammad Mominur Rahman, Jian Bao, Rui Jie Luo, Cui Ma, Chong Yu Du, Jie Zeng, Zhe Mei, Zhe Qian, Enyuan Hu, Yong Ning Zhou

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

With the increasing needs for large-scale and low-cost energy storage devices, Mn-based layered oxide cathodes have achieved considerable researching interests for potassium-ion batteries owing to their high energy density, abundant resource and low toxicity. However, their developments are challenged by the absence of suitable cathode materials to tolerate large-sized K-ion insertion/extraction and the presence of Jahn-Teller distortion of Mn³⁺. To address this issue, we present a strategy of embedding boron into interstitial tetrahedral sites to obtain a P3-K_0.5Mn_0.8Co_0.2B_0.1O₂ cathode. Strong B-O covalent bonds facilitate the construction of robust orthorhombic framework and alleviate the undesired elongation of Mn-O bonds, contributing to excellent electrochemical performance. In addition, boron ions are verified to promote the formation of a homogeneous cathode electrolyte interphase layer, improving interfacial stability and realizing highly reversible cycling in a wide voltage range (1.4–4.3 V). This strategy provides a new pathway towards the development of high-performance cathode materials for potassium-ion batteries.

Original language	English
Article number	147021
Journal	Chemical Engineering Journal
Volume	477
DOIs	https://doi.org/10.1016/j.cej.2023.147021
State	Published - Dec 1 2023
Externally published	Yes

Funding

The work was financially supported by the National Key Scientific Research Project (No. 2022YFB2502300) and the National Natural Science Foundation of China (Nos. 52071085 and 52101242). The work at Brookhaven National Laboratory is supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Vehicle Technology Office of the US Department of Energy (DOE) through the Advanced Battery Materials Research (BMR) Program under contract no. DE-SC0012704. The authors thank beamlines BL14B1 and BL02U2 at Shanghai Synchrotron Radiation Facility (SSRF) in China. This research used beamlines 7-BM of the NSLS II, a US DOE Office of Science user facility operated for the DOE Office of Science by Brookhaven National Laboratory under contract no. DE-SC0012704. The work was financially supported by the National Key Scientific Research Project (No. 2022YFB2502300) and the National Natural Science Foundation of China (Nos. 52071085 and 52101242). The work at Brookhaven National Laboratory is supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Vehicle Technology Office of the US Department of Energy (DOE) through the Advanced Battery Materials Research (BMR) Program under contract no. DE-SC0012704. The authors thank beamlines BL14B1 and BL02U2 at Shanghai Synchrotron Radiation Facility (SSRF) in China. This research used beamlines 7-BM of the NSLS II, a US DOE Office of Science user facility operated for the DOE Office of Science by Brookhaven National Laboratory under contract no. DE-SC0012704.

Funders	Funder number
National Key Scientific Research Project	2022YFB2502300
Shanghai Synchrotron Radiation Facility
U.S. Department of Energy	DE-SC0012704
Office of Science
Office of Energy Efficiency and Renewable Energy
Brookhaven National Laboratory
National Natural Science Foundation of China	52101242, 52071085

Keywords

Boron
Cathode materials
Interstitial doping
Potassium-ion batteries

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.cej.2023.147021

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title = "Promoting reversibility of layered potassium cathode through interstitial doping",

abstract = "With the increasing needs for large-scale and low-cost energy storage devices, Mn-based layered oxide cathodes have achieved considerable researching interests for potassium-ion batteries owing to their high energy density, abundant resource and low toxicity. However, their developments are challenged by the absence of suitable cathode materials to tolerate large-sized K-ion insertion/extraction and the presence of Jahn-Teller distortion of Mn3+. To address this issue, we present a strategy of embedding boron into interstitial tetrahedral sites to obtain a P3-K0.5Mn0.8Co0.2B0.1O2 cathode. Strong B-O covalent bonds facilitate the construction of robust orthorhombic framework and alleviate the undesired elongation of Mn-O bonds, contributing to excellent electrochemical performance. In addition, boron ions are verified to promote the formation of a homogeneous cathode electrolyte interphase layer, improving interfacial stability and realizing highly reversible cycling in a wide voltage range (1.4–4.3 V). This strategy provides a new pathway towards the development of high-performance cathode materials for potassium-ion batteries.",

keywords = "Boron, Cathode materials, Interstitial doping, Potassium-ion batteries",

author = "Xuan Xu and Li, {Xun Lu} and Rahman, {Muhammad Mominur} and Jian Bao and Luo, {Rui Jie} and Cui Ma and Du, {Chong Yu} and Jie Zeng and Zhe Mei and Zhe Qian and Enyuan Hu and Zhou, {Yong Ning}",

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year = "2023",

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doi = "10.1016/j.cej.2023.147021",

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AU - Xu, Xuan

AU - Li, Xun Lu

AU - Rahman, Muhammad Mominur

AU - Bao, Jian

AU - Luo, Rui Jie

AU - Ma, Cui

AU - Du, Chong Yu

AU - Zeng, Jie

AU - Mei, Zhe

AU - Qian, Zhe

AU - Hu, Enyuan

AU - Zhou, Yong Ning

PY - 2023/12/1

Y1 - 2023/12/1

N2 - With the increasing needs for large-scale and low-cost energy storage devices, Mn-based layered oxide cathodes have achieved considerable researching interests for potassium-ion batteries owing to their high energy density, abundant resource and low toxicity. However, their developments are challenged by the absence of suitable cathode materials to tolerate large-sized K-ion insertion/extraction and the presence of Jahn-Teller distortion of Mn3+. To address this issue, we present a strategy of embedding boron into interstitial tetrahedral sites to obtain a P3-K0.5Mn0.8Co0.2B0.1O2 cathode. Strong B-O covalent bonds facilitate the construction of robust orthorhombic framework and alleviate the undesired elongation of Mn-O bonds, contributing to excellent electrochemical performance. In addition, boron ions are verified to promote the formation of a homogeneous cathode electrolyte interphase layer, improving interfacial stability and realizing highly reversible cycling in a wide voltage range (1.4–4.3 V). This strategy provides a new pathway towards the development of high-performance cathode materials for potassium-ion batteries.

AB - With the increasing needs for large-scale and low-cost energy storage devices, Mn-based layered oxide cathodes have achieved considerable researching interests for potassium-ion batteries owing to their high energy density, abundant resource and low toxicity. However, their developments are challenged by the absence of suitable cathode materials to tolerate large-sized K-ion insertion/extraction and the presence of Jahn-Teller distortion of Mn3+. To address this issue, we present a strategy of embedding boron into interstitial tetrahedral sites to obtain a P3-K0.5Mn0.8Co0.2B0.1O2 cathode. Strong B-O covalent bonds facilitate the construction of robust orthorhombic framework and alleviate the undesired elongation of Mn-O bonds, contributing to excellent electrochemical performance. In addition, boron ions are verified to promote the formation of a homogeneous cathode electrolyte interphase layer, improving interfacial stability and realizing highly reversible cycling in a wide voltage range (1.4–4.3 V). This strategy provides a new pathway towards the development of high-performance cathode materials for potassium-ion batteries.

KW - Boron

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Promoting reversibility of layered potassium cathode through interstitial doping

Abstract

Funding

Keywords

UN SDGs

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