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    Low flammability electrolytes for stable operation of electrochemical devices
    21.
    发明授权
    Low flammability electrolytes for stable operation of electrochemical devices 有权

    公开(公告)号：US10472571B2

    公开(公告)日：2019-11-12

    申请号：US15788188

    申请日：2017-10-19

    Applicant: Battelle Memorial Institute

    Inventor： Ji-Guang Zhang ,  Shuru Chen ,  Wu Xu

    IPC: C09K21/12 ,  H01M10/05 ,  H01M4/40 ,  H01M10/056 ,  H01M4/86

    Abstract: Low flammability and nonflammable localized superconcentrated electrolytes (LSEs) for stable operation of electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, are disclosed. Electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, including the low flammability and nonflammable LSEs are also disclosed. The low flammability and nonflammable LSEs include an active salt, a solvent comprising a flame retardant compound, wherein the active salt is soluble in the solvent, and a diluent in which the active salt is insoluble or poorly soluble. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.

    High-energy metal air batteries
    28.
    发明授权
    High-energy metal air batteries 有权
    高能金属空气电池

    公开(公告)号：US08765278B2

    公开(公告)日：2014-07-01

    申请号：US13910065

    申请日：2013-06-04

    Applicant: Battelle Memorial Institute

    Inventor： Ji-Guang Zhang ,  Jie Xiao ,  Wu Xu ,  Deyu Wang ,  Ralph E. Williford ,  Jun Liu

    IPC: H01M2/02 ,  H01M12/06 ,  H01M12/00 ,  H01M12/04 ,  H01M12/08

    CPC classification number: H01M12/00 ,  H01M2/14 ,  H01M4/62 ,  H01M4/8647 ,  H01M4/8652 ,  H01M4/8663 ,  H01M6/16 ,  H01M12/04 ,  H01M12/06 ,  H01M12/08 ,  H01M2300/0017

    Abstract: Disclosed herein are embodiments of lithium/air batteries and methods of making and using the same. Certain embodiments are pouch-cell batteries encased within an oxygen-permeable membrane packaging material that is less than 2% of the total battery weight. Some embodiments include a hybrid air electrode comprising carbon and an ion insertion material, wherein the mass ratio of ion insertion material to carbon is 0.2 to 0.8. The air electrode may include hydrophobic, porous fibers. In particular embodiments, the air electrode is soaked with an electrolyte comprising one or more solvents including dimethyl ether, and the dimethyl ether subsequently is evacuated from the soaked electrode. In other embodiments, the electrolyte comprises 10-20% crown ether by weight.

    Abstract translation: 本文公开了锂/空气电池的实施例及其制造和使用方法。 某些实施例是封装在透氧膜包装材料内的袋电池电池，其小于总电池重量的2％。 一些实施方案包括包含碳和离子插入材料的混合空气电极，其中离子插入材料与碳的质量比为0.2至0.8。 空气电极可以包括疏水的多孔纤维。 在具体实施方案中，空气电极用包含一种或多种包括二甲醚的溶剂的电解质浸泡，然后从浸泡的电极中抽出二甲醚。 在其它实施方案中，电解质包含10-20重量％的冠醚。

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