Multi-layer, microporous polyethylene membrane, battery separator formed thereby and battery
    91.
    发明授权
    Multi-layer, microporous polyethylene membrane, battery separator formed thereby and battery 有权
    多层,微孔聚乙烯膜,由此形成的电池隔板和电池

    公开(公告)号:US08778525B2

    公开(公告)日:2014-07-15

    申请号:US12064350

    申请日:2006-08-24

    IPC分类号: H01M2/16

    摘要: A multi-layer, microporous polyethylene membrane comprising (a) a first microporous layer made of a polyethylene resin, and (b) a second microporous layer comprising a polyethylene resin, and a heat-resistant polymer having a melting point or a glass transition temperature of 170° C. or higher, the heat-resistant polymer being dispersed in the form of fine particles in the polyethylene resin, and the second microporous layer having pores containing fine particles of the heat-resistant polymer as nuclei from which the cleavage of polyethylene resin fibrils starts, the multi-layer microporous polyethylene membrane having well-balanced shutdown properties, meltdown properties, permeability, mechanical strength, heat shrinkage resistance and compression resistance.

    摘要翻译: 一种多层微孔聚乙烯膜,包括(a)由聚乙烯树脂制成的第一微孔层,和(b)包含聚乙烯树脂的第二微孔层和具有熔点或玻璃化转变温度的耐热聚合物 为170℃以上,耐热性聚合物以聚乙烯树脂中的细颗粒的形式分散,第二微孔层具有含有耐热聚合物微粒的孔,作为核,其中聚乙烯 树脂原纤维开始,多层微孔聚乙烯膜具有良好的平衡关闭性能,熔化性能,渗透性,机械强度,耐热收缩性和抗压缩性。

    Method for reducing self discharge in an electrochemical cell
    95.
    发明授权
    Method for reducing self discharge in an electrochemical cell 有权
    减少电化学电池自放电的方法

    公开(公告)号:US08679200B2

    公开(公告)日:2014-03-25

    申请号:US13299884

    申请日:2011-11-18

    IPC分类号: H01G9/00

    摘要: A method for reducing the self discharge rate and the variability in the self discharge rate of an electrochemical cell wherein a porous separator is inserted between a cathode and an anode of the cell and the porous separator contains a nanoweb that comprises a plurality of nanofibers that may contain a fully aromatic polyimide and the fully aromatic polyimide has a degree of imidization of greater than 0.51 where degree of imidization is the ratio of the height of the imide C—N absorbance at 1375 cm−1 to the C—H absorbance at 1500 cm−1.

    摘要翻译: 一种用于降低自放电速率和电化学电池的自放电速率的变化性的方法,其中多孔隔板插入在电池的阴极和阳极之间,并且多孔隔板包含纳米纤维网,其包含多个纳米纤维, 含有完全芳族聚酰亚胺,完全芳香族聚酰亚胺的酰亚胺化程度大于0.51,其中酰亚胺化程度是1375cm -1处的酰亚胺C-N吸光度与1500cmcm的C-H吸光度之比 -1。

    PROCESS FOR PRODUCING RECHARGEABLE ELECTROCHEMICAL METAL-OXYGEN CELLS
    97.
    发明申请
    PROCESS FOR PRODUCING RECHARGEABLE ELECTROCHEMICAL METAL-OXYGEN CELLS 审中-公开
    生产可充电电化学金属氧化物电池的方法

    公开(公告)号:US20140065518A1

    公开(公告)日:2014-03-06

    申请号:US14011914

    申请日:2013-08-28

    申请人: BASF SE

    IPC分类号: H01M12/08

    摘要: The invention relates to a process for producing a rechargeable electrochemical metal-oxygen cell, comprising at least one positive electrode, at least one negative metal-comprising electrode and at least one separator having two sides for separating the positive and negative electrodes, wherein, in one of the process steps, at least one side of the separator is coated with at least one material for forming one of the two electrodes (hereinafter referred to as electrode material) or at least one side of at least one of the two electrodes is coated with at least one material for forming the separator (hereinafter referred to as separator material) to form a separator-electrode assembly.

    摘要翻译: 本发明涉及一种用于生产可再充电电化学金属 - 氧电池的方法,该方法包括至少一个正电极,至少一个含负电极的电极和至少一个具有用于分离正极和负极两侧的隔板,其中, 其中一个工艺步骤,用至少一种用于形成两个电极之一的材料(以下称为电极材料)涂覆隔板的至少一侧,或者至少一个两个电极的至少一个被涂覆 与至少一种用于形成隔板的材料(以下称为隔板材料)以形成隔板 - 电极组件。

    LEAD-ACID BATTERY
    99.
    发明申请
    LEAD-ACID BATTERY 有权
    铅酸蓄电池

    公开(公告)号:US20130280595A1

    公开(公告)日:2013-10-24

    申请号:US13996680

    申请日:2010-12-21

    IPC分类号: H01M10/06

    摘要: A lead-acid battery improving the charge acceptance in an initial stage, suppressing the decrease of the charge acceptance for a long time use of the battery and having a long life is provided. In a lead-acid battery using a paste type negative plate prepared by filling a past form negative active material using a lead powder as a starting material in a collector made of a lead alloy, a flake graphite and a condensate of bisphenols and aminobenzene sulfonic acid are contained in the negative active material. The average primary particle diameter of the flake graphite is 10 μm or more and 220 μm or less, preferably, 100 μm or more and 220 μm or less. The content of the flake graphite is preferably from 0.5 mass parts to 2.7 mass parts and, more preferably, from 1.1 mass parts to 2.2 mass parts based on 100 mass parts of the negative active material (spongy metallic lead) in a fully charged state.

    摘要翻译: 提供了在初期阶段提高充电接受度的铅酸电池,抑制长时间使用电池并且寿命长的充电接受性的降低。 在使用在铅合金制的集电体中使用铅粉末作为起始原料填充过去的负极活性物质而制备的糊状负极板的铅酸电池中,将片状石墨和双酚和氨基苯磺酸的缩合物 包含在负极活性物质中。 片状石墨的平均一次粒径为10μm以上且220μm以下,优选为100μm以上且220μm以下。 片状石墨的含量相对于100质量份的完全充电状态的负极活性物质(海绵状金属铅)优选为0.5质量份〜2.7质量份,更优选为1.1质量份〜2.2质量份。

    SEPARATOR AND ELECTROCHEMICAL DEVICE HAVING THE SAME
    100.
    发明申请
    SEPARATOR AND ELECTROCHEMICAL DEVICE HAVING THE SAME 审中-公开
    具有该分离器和电化学装置的分离器和电化学装置

    公开(公告)号:US20130280583A1

    公开(公告)日:2013-10-24

    申请号:US13920505

    申请日:2013-06-18

    申请人: LG Chem, Ltd.

    IPC分类号: H01M2/16

    摘要: The present invention refers to a separator for an electrochemical device and an electrochemical device having the same. More specifically, the separator of the present invention comprises a porous substrate; a first porous coating layer formed on one surface of the porous substrate and comprising a mixture of inorganic particles and a first binder polymer; and a second porous coating layer formed on the other surface of the porous substrate and comprising a product obtained by drying a mixture of a solvent, a non-solvent and a second binder polymer.Such separator of the present invention can have good thermal safety due to a porous organic-inorganic coating layer formed on one surface thereof, and superior adhesiveness due to a porous coating layer made of a binder thin film formed by applying and drying a mixture of a binder polymer and a non-solvent on the other surface thereof. Also, the separator can have a decreased thickness to reduce the resistance of electrochemical device and improve the capacity thereof.

    摘要翻译: 本发明涉及一种电化学装置用隔膜及具有该隔膜的电化学装置。 更具体地说,本发明的隔膜包括多孔基材; 形成在所述多孔基材的一个表面上并包含无机颗粒和第一粘合剂聚合物的混合物的第一多孔涂层; 以及形成在所述多孔基材的另一表面上并包含通过干燥溶剂,非溶剂和第二粘合剂聚合物的混合物获得的产物的第二多孔涂层。 本发明的这种隔板由于在其一个表面上形成的多孔有机 - 无机涂层而具有良好的热安全性,并且由于由通过施加和干燥混合物形成的粘合剂薄膜制成的多孔涂层而具有优异的粘附性 粘合剂聚合物和在其另一表面上的非溶剂。 此外,隔板可以具有减小的厚度以降低电化学装置的电阻并提高其电容。