skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Enabling high rate charge and discharge capability, low internal resistance, and excellent cycleability for Li-ion batteries utilizing graphene additives

Abstract

A liquid-phase mixing method is adopted to uniformly disperse the graphene nanosheets onto LiNi 1/3Co 1/3Mn 1/3O 2 cathode for high-performance Li-ion batteries (LIBs). The electrochemical performance was characterized using a full pouch cells with state-of-the-art electrode areal loading (compared to half coin cells). The addition of graphene sheets (i.e., only 1 wt%) significantly improves the high rate capability for charging and discharging operation. For example, 6 times improvement in 5 C charging was achieved providing further insights in enabling extreme fast charging for LIBs. Other benefits include longer cycleability, lower internal resistance, and higher lithium ion diffusion coefficient, demonstrated by charge-discharge cycling tests and electrochemical impedance spectroscopy. Higher capacity retention of 88.2% and decreased internal resistance of ~0.9 Ω are observed after 400 cycles. The diffusion coefficient of Li ions is 6.49 × 10 -8 cm 2 s -1 when charged to 4.2 V, which is approximately 1.37 times higher compared to the configuration with no graphene sheet (4.74 × 10 -8 cm 2 s -1). To conclude, the improved performance is ascribed to a robust network among the active materials formed by graphene sheets, which serves as an extended current conductor and facilitates charge transfer, ionic reversibility, andmore » ionic transportation.« less

Authors:
 [1];  [2]; ORCiD logo [3];  [4]
  1. Yuan Ze Univ., Taoyuan (Taiwan). Dept. of Chemical Engineering and Materials Science
  2. Yuan Ze Univ., Taoyuan (Taiwan). Dept. of Chemical Engineering and Materials Science; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Science Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Mechanical, Aerospace, and Biomedical Engineering
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Science Division
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Mechanical, Aerospace, and Biomedical Engineering
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); Ministry of Science and Technology (MOST) (China)
OSTI Identifier:
1437888
Grant/Contract Number:  
AC05-00OR22725; MOST 105-2628-E-155-002-MY3; MOST 105-2221-E-155-014-MY3; MOST 105-2622-E-155-011-CC2; MOST 105-2218-E-155-007
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Electrochimica Acta
Additional Journal Information:
Journal Volume: 273; Journal Issue: C; Journal ID: ISSN 0013-4686
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; Graphene nanosheets; Ternary cathode; Lithium ion battery; Pouch cell; Fast charging

Citation Formats

Tsai, Hsiu-Ling, Hsieh, Chien-Te, Li, Jianlin, and Gandomi, Yasser Ashraf. Enabling high rate charge and discharge capability, low internal resistance, and excellent cycleability for Li-ion batteries utilizing graphene additives. United States: N. p., 2018. Web. doi:10.1016/j.electacta.2018.03.154.
Tsai, Hsiu-Ling, Hsieh, Chien-Te, Li, Jianlin, & Gandomi, Yasser Ashraf. Enabling high rate charge and discharge capability, low internal resistance, and excellent cycleability for Li-ion batteries utilizing graphene additives. United States. doi:10.1016/j.electacta.2018.03.154.
Tsai, Hsiu-Ling, Hsieh, Chien-Te, Li, Jianlin, and Gandomi, Yasser Ashraf. Tue . "Enabling high rate charge and discharge capability, low internal resistance, and excellent cycleability for Li-ion batteries utilizing graphene additives". United States. doi:10.1016/j.electacta.2018.03.154.
@article{osti_1437888,
title = {Enabling high rate charge and discharge capability, low internal resistance, and excellent cycleability for Li-ion batteries utilizing graphene additives},
author = {Tsai, Hsiu-Ling and Hsieh, Chien-Te and Li, Jianlin and Gandomi, Yasser Ashraf},
abstractNote = {A liquid-phase mixing method is adopted to uniformly disperse the graphene nanosheets onto LiNi1/3Co1/3Mn1/3O2 cathode for high-performance Li-ion batteries (LIBs). The electrochemical performance was characterized using a full pouch cells with state-of-the-art electrode areal loading (compared to half coin cells). The addition of graphene sheets (i.e., only 1 wt%) significantly improves the high rate capability for charging and discharging operation. For example, 6 times improvement in 5 C charging was achieved providing further insights in enabling extreme fast charging for LIBs. Other benefits include longer cycleability, lower internal resistance, and higher lithium ion diffusion coefficient, demonstrated by charge-discharge cycling tests and electrochemical impedance spectroscopy. Higher capacity retention of 88.2% and decreased internal resistance of ~0.9 Ω are observed after 400 cycles. The diffusion coefficient of Li ions is 6.49 × 10-8 cm2 s-1 when charged to 4.2 V, which is approximately 1.37 times higher compared to the configuration with no graphene sheet (4.74 × 10-8 cm2 s-1). To conclude, the improved performance is ascribed to a robust network among the active materials formed by graphene sheets, which serves as an extended current conductor and facilitates charge transfer, ionic reversibility, and ionic transportation.},
doi = {10.1016/j.electacta.2018.03.154},
journal = {Electrochimica Acta},
number = C,
volume = 273,
place = {United States},
year = {Tue Mar 27 00:00:00 EDT 2018},
month = {Tue Mar 27 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on March 27, 2019
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share: