Thermally conductive composites and method of preparing same

    公开(公告)号:US10385250B2

    公开(公告)日:2019-08-20

    申请号:US15620820

    申请日:2017-06-12

    Abstract: A method of preparing a thermally conductive composite including: a) mixing 15% to 60% by weight of a polymer matrix with 0% to 85% by weight of a high-aspect-ratio thermally conductive filler having an aspect ratio of at least 5:1; and (b) mixing a polymer melt obtained from step (a) with 0% to 85% by weight of a low-aspect-ratio thermally conductive filler having an aspect ratio of 2:1 or less. By changing the weight ratio, the structure and mechanical properties of the low-aspect-ratio thermally conductive filler and the high-aspect-ratio thermally conductive filler, thermal conductivity anisotropy can be tuned. A thermally conductive composite having thermal conductivity anisotropy in the range from 1 to 4 is also disclosed.

    Impact protection material and method of making the same

    公开(公告)号:US11472926B2

    公开(公告)日:2022-10-18

    申请号:US16753342

    申请日:2018-10-10

    Abstract: The present invention provides new impact protection materials and the method of making the same. More specifically, the impact protection materials are polymer-based shear-thickening composite comprising a non-shear-thickening polymer matrix material and one or more shear-thickening materials. Preferably, the non-shear-thickening polymer matrix material is in an amount from approximately 5 weight percent to approximately 90 weight percent with the balance being one or more shear-thickening materials. The first type of the one or more shear-thickening materials is sol-gel based shear-thickening material in which small inorganic particles are connected in a gel network; the second type is polymer-based shear-thickening material in which polymer chains form network. Compared to the existing shear-thickening materials, the present shear-thickening materials have different molecular structure and formulation and possess properties of good impact protection and good stability.

    HIGH VOLTAGE ELECTROLYTE AND LITHIUM ION BATTERY
    8.
    发明申请
    HIGH VOLTAGE ELECTROLYTE AND LITHIUM ION BATTERY 有权
    高压电解液和锂离子电池

    公开(公告)号:US20150333373A1

    公开(公告)日:2015-11-19

    申请号:US14709525

    申请日:2015-05-12

    CPC classification number: H01M10/0569 H01M10/0525 H01M10/0567 H01M2300/0037

    Abstract: The present application discloses a high voltage electrolyte including an electrolyte solvent which includes a mixture of a dinitrile solvent and a nitrile solvent and is stable at voltage of about 5 V or above. The dinitrile solvent may include at least one selected from the group consisting of malononitrile, succinonitrile, glutaronitrile, adiponitrile, pimelonitrile, suberonitrile, azelanitrile and sebaconitrile. The nitrile solvent may include at least one selected from the group consisting of acetonitrile, propionitrile, butyronitrile, pivalonitrile and capronitrile. The present application also discloses a lithium ion battery including the above high voltage electrolyte. The lithium ion battery exhibits a cyclic performance of greater than about 300 cycles and with a capacity retention of greater than about 80%.

    Abstract translation: 本申请公开了一种包括电解质溶剂的高压电解质,其包括二腈溶剂和腈溶剂的混合物,并且在约5V或更高的电压下是稳定的。 二腈溶剂可以包括选自丙二腈,丁二腈,戊二腈,己二腈,庚二腈,辛二腈,壬烯腈和癸二腈中的至少一种。 腈溶剂可以包括选自乙腈,丙腈,丁腈,新戊腈和癸腈中的至少一种。 本申请还公开了包括上述高电压电解质的锂离子电池。 锂离子电池显示大于约300个循环的循环性能,其容量保持率大于约80%。

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