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  1. In Situ Construction of Stable Tissue-Directed/Reinforced Bifunctional Separator/Protection Film on Lithium Anode for Lithium–Oxygen Batteries

    Ji-Jing Xu, Qing-Chao Liu, Yue Yu, Jin Wang, Jun-Min Yan and Xin-Bo Zhang

    Version of Record online: 21 APR 2017 | DOI: 10.1002/adma.201606552

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    The stable tissue-directed/reinforced bifunctional separator/protection film (TBF) is in situ fabricated on the surface of metallic lithium anode. The Li–O2 battery cell with the TBF-modified lithium anodes exhibits an excellent anodic reversibility and effectively improved cathodic long lifetime.

  2. A Robust and Conductive Black Tin Oxide Nanostructure Makes Efficient Lithium-Ion Batteries Possible

    Wujie Dong, Jijian Xu, Chao Wang, Yue Lu, Xiangye Liu, Xin Wang, Xiaotao Yuan, Zhe Wang, Tianquan Lin, Manling Sui, I-Wei Chen and Fuqiang Huang

    Version of Record online: 21 APR 2017 | DOI: 10.1002/adma.201700136

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    Changing oxide conductivity alone suffices for improving the lithiation/delithiation reversibility of tin-oxide lithium-ion batteries. The use of highly conductive black SnO2−x initiates homogeneous microstructure evolutions, forming very fine Sn particles inside Li2O to sustain reversible Sn redox, thus delivering durable capacitance. The addition of highly conducting, well-dispersed reduced graphene oxide further improves the cycling performance.

  3. Toward Practical High-Energy Batteries: A Modular-Assembled Oval-Like Carbon Microstructure for Thick Sulfur Electrodes

    Yusheng Ye, Feng Wu, Yuting Liu, Teng Zhao, Ji Qian, Yi Xing, Wanlong Li, Jiaqi Huang, Li Li, Qianming Huang, Xuedong Bai and Renjie Chen

    Version of Record online: 21 APR 2017 | DOI: 10.1002/adma.201700598

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    The modular assembly of microstructures from simple nanoparticles offers a powerful strategy to create materials with new functionalities. A modular-assembled oval-like microstructure is proposed and used as sulfur host for thick electrodes. By tuning the surface of nanoparticles, double Fischer esterification that is conducted among phytic, ethylene glycol, and the functionalized nanoparticles reconfigures scattered nanoparticles into oval-like carbon microstructures.

  4. Moisture-Responsive Wrinkling Surfaces with Tunable Dynamics

    Songshan Zeng, Rui Li, Stephan G. Freire, Vivian M. M. Garbellotto, Emily Y. Huang, Andrew T. Smith, Cong Hu, William R. T. Tait, Zichao Bian, Guoan Zheng, Dianyun Zhang and Luyi Sun

    Version of Record online: 21 APR 2017 | DOI: 10.1002/adma.201700828

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    Three types of bilayer polyvinyl alcohol (PVA)-polydimethylsiloxane (PDMS) wrinkling devices are first prepared which demonstrate reversible, temporary or permanent wrinkles as moisturized, providing a route of tuning optical properties of wrinkling surface for various applications. The design is achieved by controlling the stiffness and thickness of the PVA film and PDMS substrate, as well as tailoring the crosslink degree/gradient of the PVA film.

  5. Soft Multifunctional Composites and Emulsions with Liquid Metals

    Navid Kazem, Tess Hellebrekers and Carmel Majidi

    Version of Record online: 20 APR 2017 | DOI: 10.1002/adma.201605985

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    Elastomers embedded with liquid metal and low-melting-point alloy inclusions exhibit a unique combination of electrical, thermal, and mechanical properties. These gel-like systems represent an emerging class of soft multifunctional composites that have potential applications in wearable computing, bioinspired robotics, and shape-programmable architectures. In this progress report, recent efforts in this domain have been reviewed and opportunities for further advancement have been identified.