Bamboo–Like Nitrogen–Doped Carbon Nanotube Forests as Durable Metal–Free Catalysts for Self–Powered Flexible Li–CO2 Batteries
- China Academy of Engineering Physics, Sichuan (People's Republic of China). Inst. of Chemical Materials
- Argonne National Lab. (ANL), Lemont, IL (United States). Chemical Sciences and Engineering Div.; Univ. of Waterloo, Waterloo, ON (Canada). Dept. of Chemical Engineering Waterloo Inst. of Nanotechnology
- Argonne National Lab. (ANL), Lemont, IL (United States). Chemical Sciences and Engineering Div.
- Argonne National Lab. (ANL), Lemont, IL (United States). Chemical Sciences and Engineering Div.; Peking Univ. Shenzhen Graduate School Shenzhen 518055 (China). School of Advanced Materials
- Nanjing Univ., Nanjing (People's Republic of China). Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures
Abstract The Li–CO 2 battery is a promising energy storage device for wearable electronics due to its long discharge plateau, high energy density, and environmental friendliness. However, its utilization is largely hindered by poor cyclability and mechanical rigidity due to the lack of a flexible and durable catalyst electrode. Herein, flexible fiber‐shaped Li–CO 2 batteries with ultralong cycle‐life, high rate capability, and large specific capacity are fabricated, employing bamboo‐like N‐doped carbon nanotube fiber (B‐NCNT) as flexible, durable metal‐free catalysts for both CO 2 reduction and evolution reactions. Benefiting from high N‐doping with abundant pyridinic groups, rich defects, and active sites of the periodic bamboo‐like nodes, the fabricated Li–CO 2 battery shows outstanding electrochemical performance with high full‐discharge capacity of 23 328 mAh g −1 , high rate capability with a low potential gap up to 1.96 V at a current density of 1000 mA g −1 , stability over 360 cycles, and good flexibility. Meanwhile, the bifunctional B‐NCNT is used as the counter electrode for a fiber‐shaped dye‐sensitized solar cell to fabricate a self‐powered fiber‐shaped Li–CO 2 battery with overall photochemical–electric energy conversion efficiency of up to 4.6%. Along with a stable voltage output, this design demonstrates great adaptability and application potentiality in wearable electronics with a breath monitor as an example.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1574295
- Alternate ID(s):
- OSTI ID: 1548797
- Journal Information:
- Advanced Materials, Vol. 31, Issue 39; ISSN 0935-9648
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Metal–CO 2 Batteries at the Crossroad to Practical Energy Storage and CO 2 Recycle
|
journal | December 2019 |
Recent Progress and Perspectives of Thermally Drawn Multimaterial Fiber Electronics
|
journal | October 2019 |
Defect Engineering on Electrode Materials for Rechargeable Batteries
|
journal | November 2019 |
Design strategies toward catalytic materials and cathode structures for emerging Li–CO 2 batteries
|
journal | January 2019 |
Design of ultralong-life Li–CO 2 batteries with IrO 2 nanoparticles highly dispersed on nitrogen-doped carbon nanotubes
|
journal | January 2020 |
Similar Records
A Quasi-Solid-State Flexible Fiber-Shaped Li–CO2 Battery with Low Overpotential and High Energy Efficiency
High Performance and Flexible Supercapacitors based on Carbonized Bamboo Fibers for Wide Temperatre Applications