| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO)) |
| 권호 |
21권 2호 |
| 발표분야 |
촉매_포스터 |
| 제목 |
In operando monitoring of nanostructure change on ordered mesoporous Co-Sn Intermetallic electrode for lithium storage |
| 초록 |
Lithiation–delithiation reactions in Li-ion batteries are often accompanied by an electrochemically driven huge volume changes of anode materials between the lithium-free and lithiated-host states, resulting in a gradual capacity fading. Minimizing the volume changes of electrode during cycling is essential to guarantee the electrochemical behaviors and go far in innovating design of electrode materials for Li storage. Here, we develop ordered mesoporous CoSn intermetallic anode materials with various Co/Sn atomic ratios, to prove a dual-buffer effect for accommodating the volume changes by not only the generation of repeated void nano-spaces but also the incorporation of electrochemically inactive element. We also provide novel insights into the nanostructural changes of electrode materials during lithiation–delithiation process by in operando small angle X-ray scattering investigations. |
| 저자 |
박귀옥, 박수빈, 최윤석, 김지만
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| 소속 |
성균관대 |
| 키워드 |
Ordered mesoporous material; Metal alloy; Lithium storage; Small angle X-ray scattering
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| E-Mail |
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