Battery recharging apparatus
    1.
    发明授权
    Battery recharging apparatus 失效
    电池充电装置

    公开(公告)号:US5640077A

    公开(公告)日:1997-06-17

    申请号:US639993

    申请日:1996-04-26

    摘要: Apparatus for recharging a battery includes a compartment for accommodating the battery in a manner such that its electrical terminals are in contact with a pair of electrodes. The electrodes are connectable to respective poles of a controllable source of electrical energy. A strain gauge is positioned so as to make contact with a wall of the battery when the battery is in place in the compartment. The strain gauge includes a foil which carries a resistive element, each of the two extremities of the resistive element being connected to an electrical device via a separate contact wire, whereby the coefficient of thermal expansion of the strain gauge is substantially equal to that of the wall of the battery. The material of one of the contact wires, at its juncture with the resistive element, has a different Seebeck coefficient to the material of the other contact wire at its juncture with the respective element. The battery temperature can be monitored by measuring the DC voltage difference between the contact wires, whereas the mechanical deformation of the battery can be monitored by measuring the AC impedance of the resistive element, both of which measurements are independently conducted using the electrical device.

    摘要翻译: 用于对电池再充电的装置包括用于以使得其电端子与一对电极接触的方式容纳电池的隔室。 电极可连接到可控电能源的相应磁极。 定位应变仪,以便当电池在隔室中就位时与电池的壁接触。 应变片包括承载电阻元件的箔,电阻元件的两个末端中的每一个通过单独的接触线连接到电气装置,由此应变计的热膨胀系数基本上等于 电池墙。 接触线之一的接触线与电阻元件的材料在与其相应元件的接合处具有与另一接触导线的材料不同的塞贝克系数。 可以通过测量接触导线之间的直流电压差来监测电池温度,而可以通过测量电阻元件的交流阻抗来监测电池的机械变形,这两者都是使用电气设备独立进行的。

    Apparatus for charging a battery
    3.
    发明授权
    Apparatus for charging a battery 失效
    用于对电池充电的装置

    公开(公告)号:US5694018A

    公开(公告)日:1997-12-02

    申请号:US639983

    申请日:1996-04-26

    摘要: Apparatus for charging a battery (5) includes a battery compartment for accommodating the battery in a manner such that its electrical terminals are in contact with a pair of electrodes. The electrodes are connectable to respective poles of a controllable source of electrical energy. A resistive strain gauge (15) for monitoring mechanical deformation of the battery is attached to an elastic surface within the battery compartment, against which surface the battery is pressed when it is located in the battery compartment. In a particular embodiment, one of the electrodes (9) is a sprung metallic sheet and the elastic surface is located on this sheet.

    摘要翻译: 用于对电池(5)充电的装置包括用于以使得其电端子与一对电极接触的方式容纳电池的电池室。 电极可连接到可控电能源的相应磁极。 用于监测电池的机械变形的电阻应变仪(15)附接到电池室内的弹性表面,当电池位于电池室中时,电池被压紧在该表面上。 在一个具体实施例中,电极(9)中的一个是弹簧金属片,并且弹性表面位于该片上。

    Apparatus for recharging a battery
    6.
    发明授权
    Apparatus for recharging a battery 失效
    用于为电池充电的装置

    公开(公告)号:US5680029A

    公开(公告)日:1997-10-21

    申请号:US639994

    申请日:1996-04-26

    CPC分类号: H01M10/46 H02J7/0088

    摘要: Apparatus for recharging a battery, comprising a compartment which holds the battery so that its electrical terminals are in contact with a pair of electrodes. The electrodes are connectable to the poles of a controllable source of electrical energy. In the compartment a ferromagnetic body is positioned so as to be subjected to mechanical stress in response to mechanical deformation of the battery. An electrical device monitors the magnetic permeability .mu. of the ferromagnetic body by measuring the self-inductance of a coil surrounding at least a portion of the ferromagnetic body. The .mu. of the ferromagnetic body changes by magnetostrictive effects arising from mechanical stress of the ferromagnetic body in response to mechanical deformation of the battery (5) during charging. Expansion of the battery can be used as an indicator that charging has been completed, and that the battery should be disconnected from the source of electrical energy.

    摘要翻译: 用于为电池再充电的装置,包括保持电池以使其电端子与一对电极接触的隔室。 电极可连接到可控电源的极点。 在隔室中,铁磁体被定位成响应于电池的机械变形而受到机械应力。 电气设备通过测量围绕铁磁体的至少一部分的线圈的自感来监测铁磁体的磁导率μ。 铁磁体的μ值由于在充电期间响应于电池(5)的机械变形而由铁磁体的机械应力引起的磁致伸缩效应而变化。 电池的膨胀可以用作充电完成的指示器,并且电池应该与电能源断开。

    Battery-powered electrical device
    7.
    发明授权
    Battery-powered electrical device 失效
    电池供电电器

    公开(公告)号:US5883498A

    公开(公告)日:1999-03-16

    申请号:US926274

    申请日:1997-09-05

    IPC分类号: G01R31/36 H01M10/44 H02J7/00

    CPC分类号: H02J7/0026

    摘要: A battery-powered electrical device with a rechargeable battery pack and a means for preventing excessive discharge of the cells in the battery pack. Each cell is characterized by a voltage-value V.sub.end at which it is desirable to terminate discharge of the cell. The cells are divided into a number of mutually exclusive subsets s.sub.i having N.sub.i cells. The device comprises means for measuring the series voltage V.sub.i across each subset s.sub.i, and interrupting the current to the device if the condition V.sub.i .ltoreq.n.sub.i .times.V.sub.end is met in any of the subsets s.sub.i.

    摘要翻译: 一种具有可充电电池组的电池供电的电气装置和用于防止电池组中的电池的过度放电的装置。 每个电池的特征在于电压值Vend,期望终止电池的放电。 细胞被分成许多具有Ni细胞的相互排斥的子集si。 该装置包括用于在每个子集si上测量串联电压Vi的装置,并且如果在任何子集si中满足条件Vi

    Sealed electrochemical cell
    8.
    发明授权
    Sealed electrochemical cell 失效
    密封电化学电池

    公开(公告)号:US4943500A

    公开(公告)日:1990-07-24

    申请号:US348224

    申请日:1989-05-05

    CPC分类号: H01M10/345 Y10T29/49108

    摘要: An electrochemical cell comprising a negative electrode whose electrochemically active material includes an intermetallic compound which can form a hydride with hydrogen, the cell comprising an electrolyte of a solution of at least one alkali hydroxide in water, the negative electrode being provided with a discharge buffer by introducing a quantity of an alkali metal, alkaline earth metal or aluminum into the cell before the cell is sealed, the quantity corresponding to the desired quantity of hydrogen in the negative electrode in the uncharged condition of the cell.

    Electrochemical cell comprising stable hydride-forming material
    9.
    发明授权
    Electrochemical cell comprising stable hydride-forming material 失效
    包含稳定的氢化物形成材料的电化学电池

    公开(公告)号:US4487817A

    公开(公告)日:1984-12-11

    申请号:US587795

    申请日:1984-03-09

    摘要: An electrochemical cell having a negative electrode comprising a compound derived from LaNi.sub.5, in which La is optionally substituted by a plateau pressure-increasing element and in which Ni is substituted entirely or partly by a plateau pressure-reducing element, for example, Co and/or Cu, with the object of considerably reducing volume steps and hence crack formation of the intermetallic compound during charging and discharging.Moreover, the corrosion of the intermetallic compound is counteracted by adding small quantities of Al, Cr and/or Si, which metals enhance the formation of a protecting oxide layer.

    摘要翻译: 一种具有负极的电化学电池,其包含衍生自LaNi 5的化合物,其中La任选被平台增压元件取代,并且其中Ni被全部或部分由平台减压元件取代,例如Co和/ 或Cu,其目的是显着减小体积步长,因此在充电和放电期间金属间化合物的裂纹形成。 而且,通过添加少量的Al,Cr和/或Si来抵消金属间化合物的腐蚀,这些金属增强了保护氧化物层的形成。