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1.发明公开Double current collector negative electrode design for alkali metal ion electrochemical cells 审中-公开双集电体用于电化学碱金属离子电池负电极布置
公开(公告)号：EP1207571A3
公开(公告)日：2005-08-24
申请号：EP01127533.6
申请日：2001-11-18
CPC分类号： H01M4/70 , H01M4/06 , H01M4/08 , H01M4/34 , H01M4/366 , H01M4/405 , H01M4/48 , H01M4/581 , H01M4/582 , H01M4/5825 , H01M4/5835 , H01M4/661 , H01M4/662 , H01M4/667 , H01M6/16 , H01M6/5055 , H01M10/0525 , H01M2004/027 , H01M2004/028 , H01M2300/0037
摘要： A new sandwich negative electrode design for a secondary cell is provided comprising a "sacrificial" alkali metal along with a carbonaceous anode material. In the case of a hard carbon anode material, the sacrificial alkali metal is preferably lithium and is sized to compensate for the initial irreversible capacity of this anode material. Upon activating the cells, the lithium metal automatically intercalates into the hard carbon anode material. That way, the sacrificial lithium is consumed and compensates for the generally unacceptable irreversible capacity of hard carbon. The superior cycling longevity of hard carbon now provides a secondary cell of extended use beyond that know for conventional secondary cells having only graphitic anode materials.
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2.发明公开
公开(公告)号：EP1207571A2
公开(公告)日：2002-05-22
申请号：EP01127533.6
申请日：2001-11-18
CPC分类号： H01M4/70 , H01M4/06 , H01M4/08 , H01M4/34 , H01M4/366 , H01M4/405 , H01M4/48 , H01M4/581 , H01M4/582 , H01M4/5825 , H01M4/5835 , H01M4/661 , H01M4/662 , H01M4/667 , H01M6/16 , H01M6/5055 , H01M10/0525 , H01M2004/027 , H01M2004/028 , H01M2300/0037
摘要： A new sandwich negative electrode design for a secondary cell is provided comprising a "sacrificial" alkali metal along with a carbonaceous anode material. In the case of a hard carbon anode material, the sacrificial alkali metal is preferably lithium and is sized to compensate for the initial irreversible capacity of this anode material. Upon activating the cells, the lithium metal automatically intercalates into the hard carbon anode material. That way, the sacrificial lithium is consumed and compensates for the generally unacceptable irreversible capacity of hard carbon. The superior cycling longevity of hard carbon now provides a secondary cell of extended use beyond that know for conventional secondary cells having only graphitic anode materials.
摘要翻译： 提供了一种用于二次电池的新的夹层负极设计，包括“牺牲”碱金属以及含碳阳极材料。 在硬碳阳极材料的情况下，牺牲性碱金属优选为锂，其尺寸适于补偿该阳极材料的初始不可逆容量。 在激活电池时，锂金属自动插入硬碳阳极材料。 这样，牺牲锂被消耗，并补偿硬碳的一般不可接受的不可逆容量。 硬碳的优越的循环寿命现在提供了超过对于仅具有石墨阳极材料的常规二次电池知道的二次电池。
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3.发明公开Process for fabricating continuously coated electrodes on a porous current collector and cell designs incorporating said electrodes 有权过程用于在多孔集电体的连续制造经涂覆的电极和具有这种电极的电池
公开(公告)号：EP1241720A3
公开(公告)日：2004-10-20
申请号：EP02251863.3
申请日：2002-03-15
CPC分类号： H01M10/0587 , H01M4/04 , H01M4/0404 , H01M4/0409 , H01M4/0416 , H01M4/139 , H01M4/1391 , H01M4/1393 , H01M4/362 , H01M4/366 , H01M4/5825 , H01M4/5835 , H01M4/742 , H01M6/10 , H01M6/16 , Y10T29/49115
摘要： The invention is directed to an electrochemical cell. having at least one of its electrodes produced by coating a slurry mixture of an active material, possibly a conductive additive, and a binder dispersed in a solvent and contacted to a perforated current collector foil. It is particularly important that the active slurry does not move through the perforations of the current collector. For this reason, a barrier is placed against the opposite side of the current collector to block the perforations as the current collector is being coated with the slurry. After volatilizing the solvent, a second, different active material is coated to the opposite side of the current collector, either as a slurry, a pressed powder, a pellet or a free standing sheet. An example of this is a cathode having a configuration of: SVO/current collector CF x . The opposed active materials on the current collector can also be of the same chemistry.
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4.发明公开Process for fabricating continuously coated electrodes on a porous current collector and cell designs incorporating said electrodes 有权过程用于在多孔集电体的连续制造经涂覆的电极和具有这种电极的电池
公开(公告)号：EP1241720A2
公开(公告)日：2002-09-18
申请号：EP02251863.3
申请日：2002-03-15
CPC分类号： H01M10/0587 , H01M4/04 , H01M4/0404 , H01M4/0409 , H01M4/0416 , H01M4/139 , H01M4/1391 , H01M4/1393 , H01M4/362 , H01M4/366 , H01M4/5825 , H01M4/5835 , H01M4/742 , H01M6/10 , H01M6/16 , Y10T29/49115
摘要： The invention is directed to an electrochemical cell. having at least one of its electrodes produced by coating a slurry mixture of an active material, possibly a conductive additive, and a binder dispersed in a solvent and contacted to a perforated current collector foil. It is particularly important that the active slurry does not move through the perforations of the current collector. For this reason, a barrier is placed against the opposite side of the current collector to block the perforations as the current collector is being coated with the slurry. After volatilizing the solvent, a second, different active material is coated to the opposite side of the current collector, either as a slurry, a pressed powder, a pellet or a free standing sheet. An example of this is a cathode having a configuration of: SVO/current collector CF x . The opposed active materials on the current collector can also be of the same chemistry.
摘要翻译： 本发明是在电化学电池指向。 具有由涂覆活性材料，还可能导电助剂的浆料混合物制备其电极中的至少一个，和粘合剂分散在溶剂中并接触多孔集电体箔。 尤其重要的是没有活动浆不会通过集电器的穿孔移动。 由于这个原因，势垒被放置成抵靠集电体的相反侧以阻挡穿孔作为集电体被涂布了浆液。 使溶剂挥发，第二后，不同的活性材料涂覆在集电体的相反侧，或者作为浆液，粉饼，丸粒或独立片材。 这方面的一个例子是具有的结构的阴极：SVO /集电器的CFx。 从而在集电体相对的活性材料可以是相同的化学。
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