会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明公开
    • Internal insulation design using porous material for an electrochemical cell
    • Innenisolierungsdesign mitporösem材料fel eine elektrochemische Zelle
    • EP2802026A1
    • 2014-11-12
    • EP14167636.1
    • 2014-05-09
    • Greatbatch Ltd.
    • Krehl, Paul W.Palazzo, Marcus J.
    • H01M2/16H01M2/34H01M6/02
    • H01G11/06H01G11/46H01G11/84H01M2/1613H01M2/22H01M2/34H01M4/485H01M4/54H01M4/5815H01M4/582H01M6/16H01M10/058Y10T29/417Y10T29/49108
    • The prevention of lithium clusters from bridging between the negative and positive portions of a cell during discharge is described. This is done by providing a glass wool material at an intermediate location between the casing and anode current collector of a negative polarity and the cathode current collector and the terminal pin being of a positive polarity. Typically, a lithium ion concentration gradient sufficient to cause lithium cluster formation is induced by the high rate, intermittent discharge of a lithium/silver vanadium oxide (Li/SVO) cell. However, sufficient free electrolyte necessary for normal cell function is held in the relatively large pore volume throughout the extent of the glass wool material. Moreover, permeability within the glass wool material is tortuous, which effectively increases the distance between the negative and positive surfaces of the anode and cathode. This tortuosity effectively stops "straight line" dendrite growth of lithium clusters between opposite polarity structures inside the casing.
    • 描述了在放电期间防止锂簇在电池的负极部分和正极部分之间的桥接。 这通过在负极性的壳体和负极集电体之间的中间位置提供玻璃棉材料,并且阴极集电器和端子销具有正极性来实现。 通常,通过锂/银钒氧化物(Li / SVO)电池的高速,间歇放电,引起足以引起锂簇形成的锂离子浓度梯度。 然而,正常细胞功能所需的足够的游离电解质在玻璃棉材料的整个程度上保持在相对较大的孔体积中。 此外,玻璃棉材料内的渗透性是曲折的,这有效地增加了阳极和阴极的负面和正面之间的距离。 这种曲折有效地阻止了壳体内相对极性结构之间的锂簇的“直线”枝晶生长。
    • 13. 发明公开
    • Lithium/graphite fluoride primary battery and method for its manufacturing
    • 锂/石墨氟化物
    • EP2747177A1
    • 2014-06-25
    • EP12008515.4
    • 2012-12-21
    • Karlsruher Institut für Technologie
    • Hahn, HorstReddy, Munnangi AnjiBreitung, BenFichtner, Maximilian
    • H01M4/06H01M4/583H01M6/16H01M6/18H01M4/38
    • H01M4/5835H01M4/04H01M4/06H01M4/133H01M4/1393H01M4/382H01M6/16H01M6/188Y02E60/122Y02P70/54Y10T29/49108
    • The present invention relates to a lithium/graphite fluoride primary battery prepared by a process comprising the steps of
      (a) Providing an amount of a graphite fluoride powder;
      (b) Treating the amount of graphite fluoride powder by mechanical milling, by which step an active material is obtained; and
      (c) Forming an electrochemical cell in which a mixture of the active material and an electrically conducting carbon is assembled as part of the positive electrode and a body comprising lithium is assembled as part of a negative electrode.
      The present invention further relates to a method for manufacturing such a lithium/graphite fluoride primary battery.
      By applying mechanical milling to the graphite fluoride powder the particle size of the active material could be considerably reduced which resulted both in a larger BET surface area, an increased value for the total pore volume and a higher tap density. By this measure, both the energy density and the power density of this battery could be considerably improved without losing the high intrinsic specific capacity of the original graphite fluoride powder material.
    • 本发明涉及通过包括以下步骤的方法制备的锂/石墨氟化物一次电池:(a)提供一定量的氟化石墨粉末; (b)通过机械研磨处理氟化石墨粉末的量,通过该步骤获得活性材料; 和(c)形成电化学电池,其中组装活性材料和导电碳的混合物作为正极的一部分,并且包含锂的体被组装为负极的一部分。 本发明还涉及制造这种锂/石墨氟化物一次电池的方法。 通过对氟化石墨粉末进行机械研磨,活性材料的粒径可以显着降低,这导致更大的BET表面积,增加的总孔体积值和更高的振实密度。 通过这种措施,可以显着提高该电池的能量密度和功率密度,而不会损失原始氟化石墨粉末材料的高固有比容量。