High performance Li3V2(PO4)3/C composite cathode material for lithium ion batteries studied in pilot scale test

Zhenyu Chen; Changsong Dai; Gang Wu; Mark Nelson; Xinguo Hu; Ruoxin Zhang; Jiansheng Liu; Jicai Xia

doi:10.1016/j.electacta.2010.07.068

High performance Li₃V₂(PO₄)₃/C composite cathode material for lithium ion batteries studied in pilot scale test

Zhenyu Chen
, Changsong Dai^*
, Gang Wu
, Mark Nelson
, Xinguo Hu
, Ruoxin Zhang
, Jiansheng Liu
, Jicai Xia

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Los Alamos National Laboratory
Guangzhou Tinci Materials Technology Co., Ltd.

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

90 Scopus citations

Abstract

Li₃V₂(PO₄)₃/C composite cathode material was synthesized via carbothermal reduction process in a pilot scale production test using battery grade raw materials with the aim of studying the feasibility for their practical applications. XRD, FT-IR, XPS, CV, EIS and battery charge-discharge tests were used to characterize the as-prepared material. The XRD and FT-IR data suggested that the as-prepared Li ₃V₂(PO₄)₃/C material exhibits an orderly monoclinic structure based on the connectivity of PO₄ tetrahedra and VO₆ octahedra. Half cell tests indicated that an excellent high-rate cyclic performance was achieved on the Li₃V ₂(PO₄)₃/C cathodes in the voltage range of 3.0-4.3 V, retaining a capacity of 95% (96 mAh/g) after 100 cycles at 20C discharge rate. The low-temperature performance of the cathode was further evaluated, showing 0.5C discharge capacity of 122 and 119 mAh/g at -25 and -40 °C, respectively. The discharge capacity of graphite//Li₃V ₂(PO₄)₃ batteries with a designed battery capacity of 14 Ah is as high as 109 mAh/g with a capacity retention of 92% after 224 cycles at 2C discharge rates. The promising high-rate and low-temperature performance observed in this work suggests that Li₃V ₂(PO₄)₃/C is a very strong candidate to be a cathode in a next-generation Li-ion battery for electric vehicle applications.

Original language	English
Pages (from-to)	8595-8599
Number of pages	5
Journal	Electrochimica Acta
Volume	55
Issue number	28
DOIs	https://doi.org/10.1016/j.electacta.2010.07.068
State	Published - 1 Dec 2010
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Carbothermal reduction method
Cathode materials
High-rate performance
Lithium ion battery
Lithium vanadium phosphate

Access to Document

10.1016/j.electacta.2010.07.068

Cite this

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title = "High performance Li3V2(PO4)3/C composite cathode material for lithium ion batteries studied in pilot scale test",

abstract = "Li3V2(PO4)3/C composite cathode material was synthesized via carbothermal reduction process in a pilot scale production test using battery grade raw materials with the aim of studying the feasibility for their practical applications. XRD, FT-IR, XPS, CV, EIS and battery charge-discharge tests were used to characterize the as-prepared material. The XRD and FT-IR data suggested that the as-prepared Li 3V2(PO4)3/C material exhibits an orderly monoclinic structure based on the connectivity of PO4 tetrahedra and VO6 octahedra. Half cell tests indicated that an excellent high-rate cyclic performance was achieved on the Li3V 2(PO4)3/C cathodes in the voltage range of 3.0-4.3 V, retaining a capacity of 95\% (96 mAh/g) after 100 cycles at 20C discharge rate. The low-temperature performance of the cathode was further evaluated, showing 0.5C discharge capacity of 122 and 119 mAh/g at -25 and -40 °C, respectively. The discharge capacity of graphite//Li3V 2(PO4)3 batteries with a designed battery capacity of 14 Ah is as high as 109 mAh/g with a capacity retention of 92\% after 224 cycles at 2C discharge rates. The promising high-rate and low-temperature performance observed in this work suggests that Li3V 2(PO4)3/C is a very strong candidate to be a cathode in a next-generation Li-ion battery for electric vehicle applications.",

keywords = "Carbothermal reduction method, Cathode materials, High-rate performance, Lithium ion battery, Lithium vanadium phosphate",

author = "Zhenyu Chen and Changsong Dai and Gang Wu and Mark Nelson and Xinguo Hu and Ruoxin Zhang and Jiansheng Liu and Jicai Xia",

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AU - Chen, Zhenyu

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AU - Wu, Gang

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AU - Hu, Xinguo

AU - Zhang, Ruoxin

AU - Liu, Jiansheng

AU - Xia, Jicai

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N2 - Li3V2(PO4)3/C composite cathode material was synthesized via carbothermal reduction process in a pilot scale production test using battery grade raw materials with the aim of studying the feasibility for their practical applications. XRD, FT-IR, XPS, CV, EIS and battery charge-discharge tests were used to characterize the as-prepared material. The XRD and FT-IR data suggested that the as-prepared Li 3V2(PO4)3/C material exhibits an orderly monoclinic structure based on the connectivity of PO4 tetrahedra and VO6 octahedra. Half cell tests indicated that an excellent high-rate cyclic performance was achieved on the Li3V 2(PO4)3/C cathodes in the voltage range of 3.0-4.3 V, retaining a capacity of 95% (96 mAh/g) after 100 cycles at 20C discharge rate. The low-temperature performance of the cathode was further evaluated, showing 0.5C discharge capacity of 122 and 119 mAh/g at -25 and -40 °C, respectively. The discharge capacity of graphite//Li3V 2(PO4)3 batteries with a designed battery capacity of 14 Ah is as high as 109 mAh/g with a capacity retention of 92% after 224 cycles at 2C discharge rates. The promising high-rate and low-temperature performance observed in this work suggests that Li3V 2(PO4)3/C is a very strong candidate to be a cathode in a next-generation Li-ion battery for electric vehicle applications.

AB - Li3V2(PO4)3/C composite cathode material was synthesized via carbothermal reduction process in a pilot scale production test using battery grade raw materials with the aim of studying the feasibility for their practical applications. XRD, FT-IR, XPS, CV, EIS and battery charge-discharge tests were used to characterize the as-prepared material. The XRD and FT-IR data suggested that the as-prepared Li 3V2(PO4)3/C material exhibits an orderly monoclinic structure based on the connectivity of PO4 tetrahedra and VO6 octahedra. Half cell tests indicated that an excellent high-rate cyclic performance was achieved on the Li3V 2(PO4)3/C cathodes in the voltage range of 3.0-4.3 V, retaining a capacity of 95% (96 mAh/g) after 100 cycles at 20C discharge rate. The low-temperature performance of the cathode was further evaluated, showing 0.5C discharge capacity of 122 and 119 mAh/g at -25 and -40 °C, respectively. The discharge capacity of graphite//Li3V 2(PO4)3 batteries with a designed battery capacity of 14 Ah is as high as 109 mAh/g with a capacity retention of 92% after 224 cycles at 2C discharge rates. The promising high-rate and low-temperature performance observed in this work suggests that Li3V 2(PO4)3/C is a very strong candidate to be a cathode in a next-generation Li-ion battery for electric vehicle applications.

KW - Carbothermal reduction method

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KW - Lithium ion battery

KW - Lithium vanadium phosphate

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