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31. 发明授权

US07005213B2 Ionically conductive additive for zinc-based anode in alkaline electrochemical cells 有权
公开(公告)号：US07005213B2
公开(公告)日：2006-02-28
申请号：US10147606
申请日：2002-05-16
申请人： Ernest Ndzebet , Stephanie R. Curtis , Viet H. Vu
发明人： Ernest Ndzebet , Stephanie R. Curtis , Viet H. Vu
IPC分类号： H01M4/58
CPC分类号： H01M12/065 , H01M2/166
摘要： An anode is provided for an electrochemical cell having an ionically conductive additive, such as Laponite® or any alternative clay suitable to improve the transport of hydroxyl ions into anode during discharge.

32. 发明授权

US6083639A Current interrupter for electrochemical cells 失效
标题翻译：电化学电池的断流器
公开(公告)号：US6083639A
公开(公告)日：2000-07-04
申请号：US916627
申请日：1997-08-22
申请人： William T. McHugh , Viet H. Vu , Lucien P. Fontaine , Jane A. Blasi , Reynald Cantave
发明人： William T. McHugh , Viet H. Vu , Lucien P. Fontaine , Jane A. Blasi , Reynald Cantave
IPC分类号： H01H37/32 , H01H9/02 , H01H35/34 , H01H37/04 , H01H37/52 , H01H37/54 , H01M2/34 , H01M10/50 , H01M10/34
CPC分类号： H01M2/348 , H01H37/043 , H01H9/0271 , H01M2/34 , H01H35/34 , H01H37/323 , H01H37/54
摘要： A current interrupt assembly for electrochemical cells is disclosed. The current interrupter assembly may be a self-contained, sealed unit which may be separately inserted into the cell during cell construction. Several current interrupt assemblies may be inserted in the cell. The current interrupter assembly has particular utility for thin rechargeable cells and when inserted in the cell forms a portion of the electrical pathway between a cell electrode and corresponding terminal. The current interrupt mechanism comprises a thin thermally responsive member preferably comprising a disk of a shape memory metal alloy having a curved surface. When cell temperature exceeds a predetermined value the disk deflects to cause a break in the electrical pathway within the assembly. The assembly may include therein a flexible electrically conductive member which forms a part of the electrical pathway within the assembly and which is physically responsive to deflection of the thermally responsive member. The assembly may also include a pressure actuated diaphragm which may form a portion of the assembly housing. When the cell internal pressure exceeds a predetermined level the diaphragm deflects causing a break in the electrical pathway within the assembly, thereby shutting down the cell.
摘要翻译：公开了一种用于电化学电池的电流中断组件。电流断路器组件可以是独立的密封单元，其可以在电池构造期间被单独插入电池。可以在单元中插入几个当前中断组件。电流断路器组件对于薄的可再充电电池具有特别的用途，并且当插入电池中时，形成电池电极和相应的端子之间的电路径的一部分。当前的中断机构包括薄的热响应构件，优选地包括具有弯曲表面的形状记忆金属合金的盘。当电池温度超过预定值时，磁盘偏转，从而导致组件内电路中断。组件可以包括柔性导电构件，其形成组件内的电路径的一部分，并且其对热响应构件的偏转具有物理响应。组件还可以包括可以形成组件壳体的一部分的压力致动隔膜。当电池内部压力超过预定水平时，隔膜偏转导致组件内的电路中断，从而关闭电池。

33. 发明授权

US5958088A Prismatic cell construction 失效
标题翻译：棱镜细胞建设
公开(公告)号：US5958088A
公开(公告)日：1999-09-28
申请号：US34483
申请日：1998-03-04
申请人： Viet H. Vu , Alexander Kaplan , William T. McHugh
发明人： Viet H. Vu , Alexander Kaplan , William T. McHugh
IPC分类号： H01M2/02 , H01M6/10 , H01M10/04 , H01M10/0525 , H01M2/00 , H01M2/04 , H01M2/08 , H01M6/00
CPC分类号： H01M2/021 , H01M10/0431 , H01M10/0525 , H01M2/0217 , H01M6/10 , Y10T29/49108
摘要： An electrochemical cell is disclosed, having a sealed prismatic housing with two opposing, internal side surfaces defining therebetween an internal cavity having width and length. One of the side surfaces defines a convex arc, and the other of the side surfaces has a center portion opposing the convex arc of the one side surface, and features extending toward the one side surface and straddling the convex arc. An electrode stack is contained within the internal cavity of the housing, having positive and negative electrode sheets arranged in face-to-face relation. The electrode stack is arranged between the side surfaces of the housing such that the stack is retained between the one side surface and the extending features of the other side surface, and deflected to follow the convex arc to maintain contact pressure between the positive and negative electrode sheets. The stack is thus stretched across an inwardly crowned surface of the housing. The invention can, by maintaining good intersheet contact pressure within the stack, provide good overall active material utilization (for high cell capacity) and can help to inhibit housing distension of cells with broad sides. Methods of construction are also disclosed.
摘要翻译：公开了一种电化学电池，其具有密封的棱柱形壳体，其具有两个相对的内侧面，在其间限定具有宽度和长度的内部空腔。侧表面中的一个限定凸弧，另一个侧表面具有与一个侧表面的凸弧相对的中心部分，并且具有朝向一个侧表面延伸且跨过凸弧的特征。电极堆叠被容纳在壳体的内部空腔内，具有以面对面的关系布置的正极和负极片。电极堆叠被布置在壳体的侧表面之间，使得堆叠保持在一个侧表面和另一侧表面的延伸特征之间，并且偏转以跟随凸弧以保持正极和负极之间的接触压力床单。因此，堆叠被拉伸穿过壳体的向内凸起的表面。本发明可以通过在堆叠内保持良好的片间接触压力来提供良好的总体活性材料利用（用于高电池容量），并且可以有助于抑制具有宽边的电池的壳体膨胀。还公开了施工方法。

34. 发明授权

US5879832A Current interrupter for electrochemical cells 失效
标题翻译：电化学电池的断流器
公开(公告)号：US5879832A
公开(公告)日：1999-03-09
申请号：US831612
申请日：1997-04-10
申请人： Viet H. Vu , William T. McHugh , Jane A. Blasi , Lucien P. Fontaine , Robert J. Pinault
发明人： Viet H. Vu , William T. McHugh , Jane A. Blasi , Lucien P. Fontaine , Robert J. Pinault
IPC分类号： H02J7/00 , H01H35/34 , H01H37/32 , H01H37/54 , H01H37/76 , H01M2/12 , H01M2/34 , H01M6/50
CPC分类号： H01M2/345 , H01M2/1241 , H01M2/34 , H01M2/348 , H01H2037/769 , H01H35/34 , H01H37/323 , H01H37/54 , H01H37/764 , H01M2200/10 , H01M2200/101 , H01M2200/108 , H01M2200/20
摘要： A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism is integrated into an end cap assembly for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk or shape memory alloy member which deforms when exposed to elevated temperature causing a break in an electrical pathway within the end cap assembly. This prevents current from flowing through the cell and effectively shuts down an operating cell. The end cap assembly may include a pressure responsive mechanism which ruptures when there is extreme gas pressure buildup. Gas is allowed to escape from the cell interior to the external environment through a series of vent apertures within the end cap assembly.
摘要翻译：公开了一种用于电化学电池的电流中断机制。热激活电流中断机构被集成到用于电化学电池的端盖组件中。热响应机构优选地包括自由浮动双金属盘或形状记忆合金构件，其在暴露于升高的温度时变形，导致端盖组件内的电路径中断。这样可防止电流流过电池并有效地关闭工作电池。端盖组件可以包括压力响应机构，其在存在极端气体压力积聚时破裂。允许气体通过端盖组件内的一系列通气孔从电池内部逸出到外部环境。

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