TY - JOUR
T1 - Lithium-Pretreated Hard Carbon as High-Performance Sodium-Ion Battery Anodes
AU - Xiao, Biwei
AU - Soto, Fernando A.
AU - Gu, Meng
AU - Han, Kee Sung
AU - Song, Junhua
AU - Wang, Hui
AU - Engelhard, Mark H.
AU - Murugesan, Vijayakumar
AU - Mueller, Karl T.
AU - Reed, David
AU - Sprenkle, Vincent L.
AU - Balbuena, Perla B.
AU - Li, Xiaolin
N1 - Funding Information:
The authors would like to acknowledge the financial support from the U.S. Department of Energy’s (DOE’s) Office of Electricity Delivery & Energy Reliability (OE) under Contract No. 70247A. The STEM work was also supported by the Pico Center at SUSTech that receives support from Presidential fund and Development and Reform Commission of Shenzhen Municipality. F.A.S. and P.B.B. also acknowledge support from the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy, under Contract No. DE-EE0007766 under the Advanced Battery Materials Research (BMR) Program.
Funding Information:
The authors would like to acknowledge the financial support from the U.S. Department of Energy's (DOE's) Office of Electricity Delivery & Energy Reliability (OE) under Contract No. 70247A. The STEM work was also supported by the Pico Center at SUSTech that receives support from Presidential fund and Development and Reform Commission of Shenzhen Municipality. F.A.S. and P.B.B. also acknowledge support from the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy, under Contract No. DE-EE0007766 under the Advanced Battery Materials Research (BMR) Program.
Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/8/27
Y1 - 2018/8/27
N2 - Hard carbon (HC) is the state-of-the-art anode material for sodium-ion batteries (SIBs). However, its performance has been plagued by the limited initial Coulombic efficiency (ICE) and mediocre rate performance. Here, experimental and theoretical studies are combined to demonstrate the application of lithium-pretreated HC (LPHC) as high-performance anode materials for SIBs by manipulating the solid electrolyte interphase in tetraglyme (TEGDME)-based electrolyte. The LPHC in TEGDME can 1) deliver > 92% ICE and ≈220 mAh g−1 specific capacity, twice of the capacity (≈100 mAh g−1) in carbonate electrolyte; 2) achieve > 85% capacity retention over 1000 cycles at 1000 mA g−1 current density (4 C rate, 1 C = 250 mA g−1) with a specific capacity of ≈150 mAh g−1, ≈15 times of the capacity (10 mAh g−1) in carbonate. The full cell of Na3V2(PO4)3-LPHC in TEGDME demonstrated close to theoretical specific capacity of ≈98 mAh g−1 based on Na3V2(PO4)3 cathode, ≈2.5 times of the value (≈40 mAh g−1) with nontreated HC. This work provides new perception on the anode development for SIBs.
AB - Hard carbon (HC) is the state-of-the-art anode material for sodium-ion batteries (SIBs). However, its performance has been plagued by the limited initial Coulombic efficiency (ICE) and mediocre rate performance. Here, experimental and theoretical studies are combined to demonstrate the application of lithium-pretreated HC (LPHC) as high-performance anode materials for SIBs by manipulating the solid electrolyte interphase in tetraglyme (TEGDME)-based electrolyte. The LPHC in TEGDME can 1) deliver > 92% ICE and ≈220 mAh g−1 specific capacity, twice of the capacity (≈100 mAh g−1) in carbonate electrolyte; 2) achieve > 85% capacity retention over 1000 cycles at 1000 mA g−1 current density (4 C rate, 1 C = 250 mA g−1) with a specific capacity of ≈150 mAh g−1, ≈15 times of the capacity (10 mAh g−1) in carbonate. The full cell of Na3V2(PO4)3-LPHC in TEGDME demonstrated close to theoretical specific capacity of ≈98 mAh g−1 based on Na3V2(PO4)3 cathode, ≈2.5 times of the value (≈40 mAh g−1) with nontreated HC. This work provides new perception on the anode development for SIBs.
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U2 - 10.1002/aenm.201801441
DO - 10.1002/aenm.201801441
M3 - Article
AN - SCOPUS:85050819814
VL - 8
JO - Advanced Energy Materials
JF - Advanced Energy Materials
SN - 1614-6832
IS - 24
M1 - 1801441
ER -