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DOI | 10.1126/science.aal4373 |
Highly elastic binders integrating polyrotaxanes for silicon microparticle anodes in lithium ion batteries | |
Choi, Sunghun; Kwon, Tae-Woo; Coskun, Ali1; Choi, Jang Wook1 | |
2017-07-21 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 357期号:6348页码:279-283 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | Lithium-ion batteries with ever-increasing energy densities are needed for batteries for advanced devices and all-electric vehicles. Silicon has been highlighted as a promising anode material because of its superior specific capacity. During repeated charge-discharge cycles, silicon undergoes huge volume changes. This limits cycle life via particle pulverization and an unstable electrode-electrolyte interface, especially when the particle sizes are in the micrometer range. We show that the incorporation of 5 weight% polyrotaxane to conventional polyacrylic acid binder imparts extraordinary elasticity to the polymer network originating from the ring sliding motion of polyrotaxane. This binder combination keeps even pulverized silicon particles coalesced without disintegration, enabling stable cycle life for silicon microparticle anodes at commercial-level areal capacities. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405901600035 |
WOS关键词 | NEGATIVE ELECTRODES ; PERFORMANCE ; GRAPHITE ; DESIGN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196511 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Korea Adv Inst Sci & Technol, Grad Sch Energy Environm Water & Sustainabil EEWS, Daejeon 34141, South Korea; 2.Korea Adv Inst Sci & Technol, KAIST Inst KI NanoCentury, Daejeon 34141, South Korea |
推荐引用方式 GB/T 7714 | Choi, Sunghun,Kwon, Tae-Woo,Coskun, Ali,et al. Highly elastic binders integrating polyrotaxanes for silicon microparticle anodes in lithium ion batteries[J]. SCIENCE,2017,357(6348):279-283. |
APA | Choi, Sunghun,Kwon, Tae-Woo,Coskun, Ali,&Choi, Jang Wook.(2017).Highly elastic binders integrating polyrotaxanes for silicon microparticle anodes in lithium ion batteries.SCIENCE,357(6348),279-283. |
MLA | Choi, Sunghun,et al."Highly elastic binders integrating polyrotaxanes for silicon microparticle anodes in lithium ion batteries".SCIENCE 357.6348(2017):279-283. |
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