Abstract
As interest in electric vehicles and mass energy storage systems continues to grow, Li-O2 batteries are attracting much attention as a candidate for next-generation energy storage systems owing to their high energy density. However, safety problems related to the use of lithium metal anodes have hampered the commercialization of Li-O2 batteries. Herein, we introduced a quasi-solid polymer electrolyte with excellent electrochemical, chemical, and thermal stabilities into Li-O2 batteries. The ion-conducting QSPE was prepared by gelling a polymer network matrix consisting of poly(ethylene glycol) methyl ether methacrylate, methacrylated tannic acid, lithium trifluoromethanesulfonate, and nanofumed silica with a small amount of liquid electrolyte. The quasi-solid-state Li-O2 cell consisted of a lithium powder anode, a quasi-solid polymer electrolyte, and a Pd3Co/multiwalled carbon nanotube cathode, which enhanced the electrochemical performance of the cell. This cell, which exhibited improved safety owing to the suppression of lithium dendrite growth, achieved a lifetime of 125 cycles at room temperature. These results show that the introduction of a quasi-solid electrolyte is a potentially new alternative for the commercialization of solid-state Li-O2 batteries.
| Original language | English |
|---|---|
| Pages (from-to) | 15634-15641 |
| Number of pages | 8 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 10 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2018 May 9 |
Fingerprint
Keywords
- lithium powder
- lithium-oxygen battery
- palladium-cobalt
- quasi-solid-state
- solid polymer electrolyte
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Quasi-Solid-State Rechargeable Li-O2 Batteries with High Safety and Long Cycle Life at Room Temperature. / Cho, Sung Man; Shim, Jimin; Cho, Sung Ho; Kim, Jiwoong; Son, Byung Dae; Lee, Jong Chan; Yoon, Wooyoung.
In: ACS Applied Materials and Interfaces, Vol. 10, No. 18, 09.05.2018, p. 15634-15641.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quasi-Solid-State Rechargeable Li-O2 Batteries with High Safety and Long Cycle Life at Room Temperature
AU - Cho, Sung Man
AU - Shim, Jimin
AU - Cho, Sung Ho
AU - Kim, Jiwoong
AU - Son, Byung Dae
AU - Lee, Jong Chan
AU - Yoon, Wooyoung
PY - 2018/5/9
Y1 - 2018/5/9
N2 - As interest in electric vehicles and mass energy storage systems continues to grow, Li-O2 batteries are attracting much attention as a candidate for next-generation energy storage systems owing to their high energy density. However, safety problems related to the use of lithium metal anodes have hampered the commercialization of Li-O2 batteries. Herein, we introduced a quasi-solid polymer electrolyte with excellent electrochemical, chemical, and thermal stabilities into Li-O2 batteries. The ion-conducting QSPE was prepared by gelling a polymer network matrix consisting of poly(ethylene glycol) methyl ether methacrylate, methacrylated tannic acid, lithium trifluoromethanesulfonate, and nanofumed silica with a small amount of liquid electrolyte. The quasi-solid-state Li-O2 cell consisted of a lithium powder anode, a quasi-solid polymer electrolyte, and a Pd3Co/multiwalled carbon nanotube cathode, which enhanced the electrochemical performance of the cell. This cell, which exhibited improved safety owing to the suppression of lithium dendrite growth, achieved a lifetime of 125 cycles at room temperature. These results show that the introduction of a quasi-solid electrolyte is a potentially new alternative for the commercialization of solid-state Li-O2 batteries.
AB - As interest in electric vehicles and mass energy storage systems continues to grow, Li-O2 batteries are attracting much attention as a candidate for next-generation energy storage systems owing to their high energy density. However, safety problems related to the use of lithium metal anodes have hampered the commercialization of Li-O2 batteries. Herein, we introduced a quasi-solid polymer electrolyte with excellent electrochemical, chemical, and thermal stabilities into Li-O2 batteries. The ion-conducting QSPE was prepared by gelling a polymer network matrix consisting of poly(ethylene glycol) methyl ether methacrylate, methacrylated tannic acid, lithium trifluoromethanesulfonate, and nanofumed silica with a small amount of liquid electrolyte. The quasi-solid-state Li-O2 cell consisted of a lithium powder anode, a quasi-solid polymer electrolyte, and a Pd3Co/multiwalled carbon nanotube cathode, which enhanced the electrochemical performance of the cell. This cell, which exhibited improved safety owing to the suppression of lithium dendrite growth, achieved a lifetime of 125 cycles at room temperature. These results show that the introduction of a quasi-solid electrolyte is a potentially new alternative for the commercialization of solid-state Li-O2 batteries.
KW - lithium powder
KW - lithium-oxygen battery
KW - palladium-cobalt
KW - quasi-solid-state
KW - solid polymer electrolyte
UR - http://www.scopus.com/inward/record.url?scp=85046639718&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85046639718&partnerID=8YFLogxK
U2 - 10.1021/acsami.8b00529
DO - 10.1021/acsami.8b00529
M3 - Article
AN - SCOPUS:85046639718
VL - 10
SP - 15634
EP - 15641
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 18
ER -