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    • 99. 发明申请
    • METHOD OF FABRICATING ELECTRODES INCLUDING HIGH-CAPACITY, BINDER-FREE ANODES FOR LITHIUM-ION BATTERIES
    • 包括高容量电极的方法,用于锂离子电池的无粘合剂阳极
    • US20130065130A1
    • 2013-03-14
    • US13672486
    • 2012-11-08
    • ALLIANCE FOR SUSTAINABLE ENERGY, LLC
    • Chunmei BANZhuangchun WUAnne C. DILLON
    • H01B1/04H01M4/52H01B1/08B01J19/08H01B1/00H01M4/48H01M4/62
    • H01B1/04B01J19/08B82Y30/00H01B1/00H01B1/08H01M4/02H01M4/0404H01M4/0471H01M4/131H01M4/48H01M4/485H01M4/52H01M4/625H01M10/0525Y02E60/122Y02T10/7011
    • An electrode (110) is provided that may be used in an electrochemical device (100) such as an energy storage/discharge device, e.g., a lithium-ion battery, or an electrochromic device, e.g., a smart window. Hydrothermal techniques and vacuum filtration methods were applied to fabricate the electrode (110). The electrode (110) includes an active portion (140) that is made up of electrochemically active nanoparticles, with one embodiment utilizing 3d-transition metal oxides to provide the electrochemical capacity of the electrode (110). The active material (140) may include other electrochemical materials, such as silicon, tin, lithium manganese oxide, and lithium iron phosphate. The electrode (110) also includes a matrix or net (170) of electrically conductive nanomaterial that acts to connect and/or bind the active nanoparticles (140) such that no binder material is required in the electrode (110), which allows more active materials (140) to be included to improve energy density and other desirable characteristics of the electrode. The matrix material (170) may take the form of carbon nanotubes, such as single-wall, double-wall, and/or multi-wall nanotubes, and be provided as about 2 to 30 percent weight of the electrode (110) with the rest being the active material (140).
    • 提供了可用于电化学装置(100)中的电极(110),例如能量存储/放电装置,例如锂离子电池或电致变色装置,例如智能窗。 应用水热技术和真空过滤方法来制造电极(110)。 电极(110)包括由电化学活性纳米颗粒构成的活性部分(140),一个实施方案使用三维过渡金属氧化物来提供电极(110)的电化学容量。 活性材料(140)可以包括其它电化学材料,例如硅,锡,锰酸锂和磷酸铁锂。 电极(110)还包括用于连接和/或结合活性纳米颗粒(140)的导电纳米材料的基体或网(170),使得在电极(110)中不需要粘合剂材料,这允许更有活性 要包括的材料(140)以改善电极的能量密度和其它期望的特性。 基质材料(170)可以采取碳纳米管的形式,例如单壁,双壁和/或多壁纳米管,并且以约2至30重量%的电极(110)提供, 其余为活性物质(140)。