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Title: A Quasi-Solid-State Flexible Fiber-Shaped Li–CO2 Battery with Low Overpotential and High Energy Efficiency

Journal Article · · Advanced Materials
 [1];  [1];  [2];  [1];  [2];  [1];  [2];  [1];  [3];  [1]
  1. China Academy of Engineering Physics, Sichuan (People's Republic of China); Sichuan Research Center of New Materials, Sichuan (People's Republic of China)
  2. Hunan Univ., Hunan (People's Republic of China)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)

The rapid development of wearable electronics requires a revolution of power accessories regarding flexibility and energy density. The Li–CO2 battery was recently proposed as a novel and promising candidate for next-generation energy-storage systems. However, the current Li–CO2 batteries usually suffer from the difficulties of poor stability, low energy efficiency, and leakage of liquid electrolyte, and few flexible Li–CO2 batteries for wearable electronics have been reported so far. Herein, a quasi-solid-state flexible fiber-shaped Li–CO2 battery with low overpotential and high energy efficiency, by employing ultrafine Mo2C nanoparticles anchored on a carbon nanotube (CNT) cloth freestanding hybrid film as the cathode, is demonstrated. Due to the synergistic effects of the CNT substrate and Mo2C catalyst, it achieves a low charge potential below 3.4 V, a high energy efficiency of approximate to 80%, and can be reversibly discharged and charged for 40 cycles. Experimental results and theoretical simulation show that the intermediate discharge product Li2C2O4 stabilized by Mo2C via coordinative electrons transfer should be responsible for the reduction of overpotential. Here, the as-fabricated quasi-solid-state flexible fiber-shaped Li–CO2 battery can also keep working normally even under various deformation conditions, giving it great potential of becoming an advanced energy accessory for wearable electronics.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); National Natural Science Foundation of China (NSFC); USDOE
Grant/Contract Number:
AC02-06CH11357; AC02‐06CH11357
OSTI ID:
1510084
Alternate ID(s):
OSTI ID: 1483327
Journal Information:
Advanced Materials, Vol. 31, Issue 3; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 145 works
Citation information provided by
Web of Science

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Cited By (13)

Targeted Synergy between Adjacent Co Atoms on Graphene Oxide as an Efficient New Electrocatalyst for Li–CO 2 Batteries journal September 2019
Metal–CO 2 Batteries at the Crossroad to Practical Energy Storage and CO 2 Recycle journal December 2019
Flexible 1D Batteries: Recent Progress and Prospects journal July 2019
Application Challenges in Fiber and Textile Electronics journal July 2019
Recent Advances in Fiber‐Shaped Supercapacitors and Lithium‐Ion Batteries journal August 2019
Li–CO 2 and Na–CO 2 Batteries: Toward Greener and Sustainable Electrical Energy Storage journal September 2019
Bamboo‐Like Nitrogen‐Doped Carbon Nanotube Forests as Durable Metal‐Free Catalysts for Self‐Powered Flexible Li–CO 2 Batteries journal August 2019
Multidimensional Ordered Bifunctional Air Electrode Enables Flash Reactants Shuttling for High‐Energy Flexible Zn‐Air Batteries journal May 2019
Toward the rational design of cathode and electrolyte materials for aprotic Li‐CO 2 batteries: A numerical investigation journal September 2019
Perovskite Solar Fibers: Current Status, Issues and Challenges journal October 2019
Synergistic effect of quinary molten salts and ruthenium catalyst for high-power-density lithium-carbon dioxide cell journal January 2020
V 2 O 5 nanosheets supported on 3D N-doped carbon nanowall arrays as an advanced cathode for high energy and high power fiber-shaped zinc-ion batteries journal January 2019
Design strategies toward catalytic materials and cathode structures for emerging Li–CO 2 batteries journal January 2019