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    • 24. 发明授权
    • Battery with an in-situ activation plated lithium anode
    • 具有原位激活电镀锂阳极的电池
    • US06168884A
    • 2001-01-02
    • US09285326
    • 1999-04-02
    • Bernd J. NeudeckerNancy J. DudneyJohn B. Bates
    • Bernd J. NeudeckerNancy J. DudneyJohn B. Bates
    • H01M1000
    • H01M10/0436H01M4/0447H01M4/661H01M6/185H01M6/188H01M6/40H01M10/052H01M10/056H01M2004/027
    • A thin-film rechargeable battery includes a cathode film; including a lithium transition metal oxide, an electrolyte film coupled to the cathode film, the electrolyte film being substantially nonreactive with oxidizing materials and with metallic lithium, an anode current collector coupled to the electrolyte film; and an overlying layer coupled to the anode current collector. The thin-film rechargeable battery is activated during an initial charge by electrochemical plating of a metallic lithium anode between the anode current collector and the electrolyte film. The plating of the anode during charging and the stripping of the anode layer during discharging are essentially reversible. Therefore, almost no diminishment of discharge capacity occurs, even after many discharge and charge cycles. Other advantages include no need for special packaging for shipping and handling. The battery eliminates the main drawbacks of the thin-film Li-ion battery (high capacity loss during the initial charge) and of the thin-film lithium battery (high air-sensitivity at all times, temperature limited to ˜100° C., expensive preparation of the lithium anode). The battery survives processing conditions that exceed those of a solder reflow process without any signs of degradation.
    • 薄膜可充电电池包括阴极膜; 包括锂过渡金属氧化物,与阴极膜耦合的电解质膜,所述电解质膜与氧化材料和金属锂基本上无反应性;阳极集电器耦合到所述电解质膜; 以及耦合到阳极集电器的上覆层。 通过在阳极集电器和电解质膜之间的金属锂阳极的电化学电镀,在初始充电期间,薄膜可再充电电池被激活。 在充电期间阳极的电镀和在放电期间阳极层的剥离基本上是可逆的。 因此,即使在许多放电和充电循环之后,也几乎不会发生放电容量的减小。 其他优点包括不需要特殊的包装运输和处理。 电池消除了薄膜锂离子电池的主要缺点(初始充电期间的高容量损失)和薄膜锂电池(高度空气敏感性,温度限制在〜100℃, 昂贵的锂阳极制备)。 电池的处理条件超过了焊料回流工艺,而没有任何退化的迹象。