COMPOSITES SCIENCE AND ENGINEERING ›› 2023, Vol. 0 ›› Issue (5): 12-18.DOI: 10.19936/j.cnki.2096-8000.20221028.032

• BASIC STUDY • Previous Articles     Next Articles

Preparation and performance study on ultra-thin nickel-plated carbon fiber tubular structure battery

WANG Yazhen1, ZHANG Juntao1, LI Hui2*, MA Xinqi1, ZONG Wenbo1, JI Tianqi1, WU Haihong1*   

  1. 1. Carbon Fiber Composites International Joint Research Lab in Henan, Henan University of Technology, Zhengzhou 450001, China;
    2. School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
  • Received:2022-04-18 Online:2023-05-28 Published:2023-08-22

Abstract: Carbon fiber structure battery has both excellent mechanical properties of carbon fiber reinforced composite materials and good energy storage performance, which has broad application prospects in aerospace, new energy vehicles and other fields. In this article, ultra-thin nickel-plated carbon fiber battery (Ni-CFB) was prepared by coating process. Based on the design method of embedding integrated structure battery, the sandwich structure battery tube (SSBT) was prepared by resin vacuum transfer process, with the battery as the core and the carbon fiber braid as the skin. The electrochemical properties of Ni-CFB were tested, and the electrochemical performance attenuation behaviors of SSBT under different loading were evaluated. The results show that the specific capacity of Ni-CFB reaches 156 mAh/g at a charge-discharge rate of 0.1 C, which is 30% higher than the specific capacity of conventional batteries of lithium-iron phosphate-graphite system. When the compression loading ratio and flexure loading ratio reach 550 N/g and 89.1 N/g, the capacity of SSBT is remained at 80% and 60% or more, respectively. Results indicate that SSBT has good structural efficiency and energy storage efficiency, which has great potential in lightweight design and safety design on energy storage systems.

Key words: ultra-thin nickel-plated carbon fiber, electrochemical properties, mechanical properties, structural battery tube, composites

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