Abstract
On-board vehicle applications dictate the need for improved low-temperature power densities of rechargeable batteries. Integration of high-permittivity artificial dielectric solid electrolyte interfaces (SEIs) into the lithium ion battery architecture is a promising path to satisfy this need. The relationship between the permittivity of various artificial dielectric SEIs and the resulting high-rate capability at low temperatures is investigated. Room-temperature studies reveal a weak relationship between these variables. However, at low temperatures, the correlation between the larger permittivity of the dielectric SEIs and the greater high-rate capabilities of the cells is striking. The high-rate capabilities for pulsed laser deposition-synthesized cathode thin films with various BaTiO3 (BTO) SEIs covering configurations are evaluated. A remarkable improvement in the high-rate capability is observed for LiCoO2 (LCO) modified with dot BTOs, while the rate capability for planar BTO (fully covered LCO) is weakened significantly. A series of experimental results prove that a large polarization, P, in the dielectric SEIs intensified with permittivity accelerates interfacial charge transfer near the dielectrics–LCO–electrolyte triple junction.
| Original language | English |
|---|---|
| Article number | 1700413 |
| Journal | Advanced Electronic Materials |
| Volume | 4 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 1 2018 |
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Keywords
- artificial solid electrolyte interfaces
- ferroelectrics
- high-rate capability
- Li ion batteries
- polarization
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
Cite this
Low-Temperature High-Rate Capabilities of Lithium Batteries via Polarization-Assisted Ion Pathways. / Teranisi, Takasi; Katsuji, Naoto; Chajima, Keisuke; Yasuhara, Sou; Inohara, Masahiro; Yoshikawa, Yumi; Yasui, Shintaro; Hayashi, Hidetaka; Kishimoto, Akira; Itoh, Mitsuru.
In: Advanced Electronic Materials, Vol. 4, No. 4, 1700413, 01.04.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-Temperature High-Rate Capabilities of Lithium Batteries via Polarization-Assisted Ion Pathways
AU - Teranisi, Takasi
AU - Katsuji, Naoto
AU - Chajima, Keisuke
AU - Yasuhara, Sou
AU - Inohara, Masahiro
AU - Yoshikawa, Yumi
AU - Yasui, Shintaro
AU - Hayashi, Hidetaka
AU - Kishimoto, Akira
AU - Itoh, Mitsuru
PY - 2018/4/1
Y1 - 2018/4/1
N2 - On-board vehicle applications dictate the need for improved low-temperature power densities of rechargeable batteries. Integration of high-permittivity artificial dielectric solid electrolyte interfaces (SEIs) into the lithium ion battery architecture is a promising path to satisfy this need. The relationship between the permittivity of various artificial dielectric SEIs and the resulting high-rate capability at low temperatures is investigated. Room-temperature studies reveal a weak relationship between these variables. However, at low temperatures, the correlation between the larger permittivity of the dielectric SEIs and the greater high-rate capabilities of the cells is striking. The high-rate capabilities for pulsed laser deposition-synthesized cathode thin films with various BaTiO3 (BTO) SEIs covering configurations are evaluated. A remarkable improvement in the high-rate capability is observed for LiCoO2 (LCO) modified with dot BTOs, while the rate capability for planar BTO (fully covered LCO) is weakened significantly. A series of experimental results prove that a large polarization, P, in the dielectric SEIs intensified with permittivity accelerates interfacial charge transfer near the dielectrics–LCO–electrolyte triple junction.
AB - On-board vehicle applications dictate the need for improved low-temperature power densities of rechargeable batteries. Integration of high-permittivity artificial dielectric solid electrolyte interfaces (SEIs) into the lithium ion battery architecture is a promising path to satisfy this need. The relationship between the permittivity of various artificial dielectric SEIs and the resulting high-rate capability at low temperatures is investigated. Room-temperature studies reveal a weak relationship between these variables. However, at low temperatures, the correlation between the larger permittivity of the dielectric SEIs and the greater high-rate capabilities of the cells is striking. The high-rate capabilities for pulsed laser deposition-synthesized cathode thin films with various BaTiO3 (BTO) SEIs covering configurations are evaluated. A remarkable improvement in the high-rate capability is observed for LiCoO2 (LCO) modified with dot BTOs, while the rate capability for planar BTO (fully covered LCO) is weakened significantly. A series of experimental results prove that a large polarization, P, in the dielectric SEIs intensified with permittivity accelerates interfacial charge transfer near the dielectrics–LCO–electrolyte triple junction.
KW - artificial solid electrolyte interfaces
KW - ferroelectrics
KW - high-rate capability
KW - Li ion batteries
KW - polarization
UR - http://www.scopus.com/inward/record.url?scp=85043366404&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85043366404&partnerID=8YFLogxK
U2 - 10.1002/aelm.201700413
DO - 10.1002/aelm.201700413
M3 - Article
AN - SCOPUS:85043366404
VL - 4
JO - Advanced Electronic Materials
JF - Advanced Electronic Materials
SN - 2199-160X
IS - 4
M1 - 1700413
ER -