Details
| Original language | English |
|---|---|
| Article number | eadd6596 |
| Number of pages | 11 |
| Journal | Science advances |
| Volume | 8 |
| Issue number | 51 |
| Early online date | 21 Dec 2022 |
| Publication status | Published - Dec 2022 |
Abstract
Advancing the lithium-ion battery technology requires the understanding of electrochemical processes in electrode materials with high resolution, accuracy, and sensitivity. However, most techniques today are limited by their inability to separate the complex signals from slurry-coated composite electrodes. Here, we use a three-dimensional “Swiss-roll” microtubular electrode that is incorporated into a micrometer-sized lithium battery. This on-chip platform combines various in situ characterization techniques and precisely probes the intrinsic electrochemical properties of each active material due to the removal of unnecessary binders and additives. As an example, it helps elucidate the critical role of Fe substitution in a conversion-type NiO electrode by monitoring the evolution of Fe2O3 and solid electrolyte interphase layer. The markedly enhanced electrode performances are therefore explained. Our approach exposes a hitherto unexplored route to tracking the phase, morphology, and electrochemical evolution of electrodes in real time, allowing us to reveal information that is not accessible with bulk-level characterization techniques.
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In: Science advances, Vol. 8, No. 51, eadd6596, 12.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Single “Swiss-roll” microelectrode elucidates the critical role of iron substitution in conversion-type oxides
AU - Liu, Lixiang
AU - Huang, Shaozhuan
AU - Shi, Wujun
AU - Sun, Xiaolei
AU - Pang, Jinbo
AU - Lu, Qiongqiong
AU - Yang, Ye
AU - Xi, Lixia
AU - Deng, Liang
AU - Oswald, Steffen
AU - Yin, Yin
AU - Liu, Lifeng
AU - Ma, Libo
AU - Schmidt, Oliver G.
AU - Shi, Yumeng
AU - Zhang, Lin
N1 - Funding Information: We thank R. Engelhard, B. Eichler, S. Nestler, C. Schmidt, M. Bauer, and L. Raith for support in the clean room facilities and A. Voss for ICP characterization. O.G.S. acknowledges financial support from the Leibniz Program of the German Research Foundation (SCHM 1298/26-1). Y.S. acknowledges financial support by the Shenzhen Peacock Plan (no. KQTD2016053112042971).
PY - 2022/12
Y1 - 2022/12
N2 - Advancing the lithium-ion battery technology requires the understanding of electrochemical processes in electrode materials with high resolution, accuracy, and sensitivity. However, most techniques today are limited by their inability to separate the complex signals from slurry-coated composite electrodes. Here, we use a three-dimensional “Swiss-roll” microtubular electrode that is incorporated into a micrometer-sized lithium battery. This on-chip platform combines various in situ characterization techniques and precisely probes the intrinsic electrochemical properties of each active material due to the removal of unnecessary binders and additives. As an example, it helps elucidate the critical role of Fe substitution in a conversion-type NiO electrode by monitoring the evolution of Fe2O3 and solid electrolyte interphase layer. The markedly enhanced electrode performances are therefore explained. Our approach exposes a hitherto unexplored route to tracking the phase, morphology, and electrochemical evolution of electrodes in real time, allowing us to reveal information that is not accessible with bulk-level characterization techniques.
AB - Advancing the lithium-ion battery technology requires the understanding of electrochemical processes in electrode materials with high resolution, accuracy, and sensitivity. However, most techniques today are limited by their inability to separate the complex signals from slurry-coated composite electrodes. Here, we use a three-dimensional “Swiss-roll” microtubular electrode that is incorporated into a micrometer-sized lithium battery. This on-chip platform combines various in situ characterization techniques and precisely probes the intrinsic electrochemical properties of each active material due to the removal of unnecessary binders and additives. As an example, it helps elucidate the critical role of Fe substitution in a conversion-type NiO electrode by monitoring the evolution of Fe2O3 and solid electrolyte interphase layer. The markedly enhanced electrode performances are therefore explained. Our approach exposes a hitherto unexplored route to tracking the phase, morphology, and electrochemical evolution of electrodes in real time, allowing us to reveal information that is not accessible with bulk-level characterization techniques.
UR - http://www.scopus.com/inward/record.url?scp=85144522840&partnerID=8YFLogxK
U2 - 10.1126/sciadv.add6596
DO - 10.1126/sciadv.add6596
M3 - Article
C2 - 36542707
AN - SCOPUS:85144522840
VL - 8
JO - Science advances
JF - Science advances
SN - 2375-2548
IS - 51
M1 - eadd6596
ER -