TY - JOUR
T1 - Transforming rate capability through self-heating of energy-dense and next-generation batteries
AU - Longchamps, Ryan S.
AU - Yang, Xiao Guang
AU - Ge, Shanhai
AU - Liu, Teng
AU - Wang, Chao Yang
N1 - Funding Information:
Financial support from Pennsylvania Department of Environmental Protection (DEP) (DEP grant # 4100068680-1 ) and the William E. Diefenderfer Endowment is gratefully acknowledged.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/10/31
Y1 - 2021/10/31
N2 - We demonstrate that an energy-dense, 288 Wh kg−1 lithium-ion battery can provide 152 Wh kg−1 energy and 1056 W kg−1 power at ultralow temperatures such as −40 or −50 °C, contrary to virtually no performance expected under two simultaneous extremes: 4.04 mAh cm−2 cathode loading and −40 °C. Unleashing this huge potential of current battery materials is achieved through a self-heating structure by embedding a micron-thin nickel foil in the electrochemical energy storage cell. The heating process from −40 to 10 °C consumes only 5.1% of battery energy and takes 77 s. Further, based on the chemistry agnostic nature of self-heating, we present a generic chart to transform rate capability of lithium-ion and lithium metal batteries. These illustrative examples point to a new era of battery structure innovation, significantly broadening the performance envelopes of existing and emerging battery materials for electrified transportation.
AB - We demonstrate that an energy-dense, 288 Wh kg−1 lithium-ion battery can provide 152 Wh kg−1 energy and 1056 W kg−1 power at ultralow temperatures such as −40 or −50 °C, contrary to virtually no performance expected under two simultaneous extremes: 4.04 mAh cm−2 cathode loading and −40 °C. Unleashing this huge potential of current battery materials is achieved through a self-heating structure by embedding a micron-thin nickel foil in the electrochemical energy storage cell. The heating process from −40 to 10 °C consumes only 5.1% of battery energy and takes 77 s. Further, based on the chemistry agnostic nature of self-heating, we present a generic chart to transform rate capability of lithium-ion and lithium metal batteries. These illustrative examples point to a new era of battery structure innovation, significantly broadening the performance envelopes of existing and emerging battery materials for electrified transportation.
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U2 - 10.1016/j.jpowsour.2021.230416
DO - 10.1016/j.jpowsour.2021.230416
M3 - Article
AN - SCOPUS:85113648898
SN - 0378-7753
VL - 510
JO - Journal of Power Sources
JF - Journal of Power Sources
M1 - 230416
ER -
