A composite structural supercapacitor based on Ni–Co-layered double hydroxide–coated carbon cloth electrodes

Zhou，Hanmo1,2; Duongthipthewa，Anchalee1; Zhang，Jing1,2; Li，Hao2; Peng，Luwei2; Fu，Yu3; Huang，Haitao2; Zhou，Limin1

2023-07-28

10.1016/j.compscitech.2023.110068

Composites Science and Technology   影响因子和分区

0266-3538

1879-1050

Composite structural supercapacitors (CSSs) are valuable for their use in structural optimization because they can provide energy storage capacity while bearing mechanical loads, thereby enabling weight and volume reduction. Herein, flexible energy storage devices are embedded into carbon fiber reinforced polymer (CFRP) to form a CSS. In the flexible device, a positive electrode (carbon cloth coated with Ni–Co-layered hydroxide, NiCo-LDH@CC), a negative electrode (activated carbon–coated carbon cloth, AC@CC), and a separator (glass fabric) are bonded together by PVA-KOH gel electrolyte. The CSS (5:5 NiCo-LDH-CSS) provides competitive electrochemical properties (specific capacitance of 610 mF g, energy density of 191 mWh kg, and power density of 1,508 mW kg) and good mechanical properties (flexural strength of 495 MPa and flexural modulus of 125 GPa). The study conducts a systematic analysis of capacity decay during the electrochemical cycling process of 5:5 NiCo-LDH-CSS. In-situ mechano-electrochemical tests are also performed to verify the stable electrochemical behavior under external dynamic and static loads, which is a rarely studied aspect in other reports. This investigation provides assurance for the safety and reliability of future CSS applications. The study findings suggest that the 5:5 NiCo-LDH-CSS possesses good multifunctionality, and can provide a new idea for further development in CSSs.

Carbon fibers Composite structural supercapacitors Electrochemical properties Mechanical properties

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[12072141];

Materials Science

Materials Science, Composites

WOS:001007685200001

ELSEVIER SCI LTD

20232014088186

Activated carbon ; Carbon fibers ; Cobalt compounds ; Density (specific gravity) ; Electrochemical electrodes ; Energy storage ; Potassium hydroxide ; Solid electrolytes ; Structural optimization ; Structural properties ; Supercapacitor

Structural Design:408 ; Energy Storage:525.7 ; Electric Components:704.1 ; Electrochemistry:801.4.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Optimization Techniques:921.5 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85159142803

Scopus

1.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen,China
2.Department of Applied Physics,The Hong Kong Polytechnic University,Kowloon,Hung Hom,Hong Kong
3.School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai,China

Zhou，Hanmo,Duongthipthewa，Anchalee,Zhang，Jing,等. A composite structural supercapacitor based on Ni–Co-layered double hydroxide–coated carbon cloth electrodes[J]. Composites Science and Technology,2023,240.

Zhou，Hanmo.,Duongthipthewa，Anchalee.,Zhang，Jing.,Li，Hao.,Peng，Luwei.,...&Zhou，Limin.(2023).A composite structural supercapacitor based on Ni–Co-layered double hydroxide–coated carbon cloth electrodes.Composites Science and Technology,240.

Zhou，Hanmo,et al."A composite structural supercapacitor based on Ni–Co-layered double hydroxide–coated carbon cloth electrodes".Composites Science and Technology 240(2023).