Solid state battery structure
阅读：80发布：2023-08-15
专利汇可以提供Solid state battery structure专利检索，专利查询，专利分析的服务。并且A battery consisting of one or several solid state cells held in close surface-to-surface contact by one or more pressure wave springs to hold the cells in tight low-resistance contact throughout the life of the cells, with the springs serving also as end cell electrode contacts, to transmit current to the electrode terminals. Internal parallel connections serve to increase the current delivering capacity of the battery.，下面是Solid state battery structure专利的具体信息内容。
1. A solid state battery assembly comprising: a plurality of stacks of solid state cells, the cells of each stack connected in series, and the stacks connected in parallel, each cell consisting of anode and cathode components and a solid electrolyte therebetween, all of said component elements being in solid self-supporting state and in flat disc form and disposed in co-axial arrangement; a first insulating cylinder encircling said stack of cells to insulate said cell components from inter-stack electrical connectors; inter-stack electrical connectors disposed between adjacent terminal discs of the same polarity and extending through and along the wall of said first insulating cylinder such that all of the respective negative terminals of the several cell stacks are connected to one electrode terminal of the battery and all of the respective positive terminals of the several cell stacks are connected to the other eLectrode terminal of the battery; a second insulating cylinder encircling said inter-stack connectors to insulate said connectors from an external container; at least one initially stress-energized resilient wave-type spring in annular form disposed at least at one end of the stack to compress the stack of component elements of the battery and to maintain them in operative condition and in electrical connection; and an outer container to house said assembly, said container comprising a metallic can initially open at its top end and closed at its bottom end, said top end embodying an annular seat and a concentric rim edge, said top end being closed by means of a terminal assembly comprising: a metallic disc plate resting upon the uppermost wave-type spring; a coaxial insulating disc coextensive with and resting upon said metallic disc plate, said insulating disc having a centrally located coaxial opening; an annular top header resting upon said insulating disc and secured to the inner concentric rim edge of said metallic can to thereby seal the battery, said header comprising a central ceramic disc having a centrally disposed coaxial opening and a circular metallic annular ring bonded to the periphery of said ceramic disc, the diameter of said metallic annular ring substantially coextensive with the diameter of the inner rim edge of the metallic can to seat tightly therewithin; and an axial conductor physically connected to said metallic disc plate and extending through said insulating disc and said central ceramic disc of said header to serve as one terminal for the battery.
2. A solid state battery assembly as in claim 1 in which the annular wave-type spring serves as an electrically conducting and terminal element for said cell stacks for transmitting the polarity potential of the associated cell to an external circuit element.
3. A solid state battery assembly as in claim 2 in which a flat metallic element is disposed between the annular wave-type spring and the adjacent end cell unit to protect the adjoining electrode component of said end cell unit from any sharp edges of said springs.
4. A solid state battery assembly as in claim 1 in which successive cell groups in the stack are disposed in relatively inverted position to place terminal electrode discs of the same polarity in relatively adjacent positions, to simplify the electrical connections for parallel operation.
5. A solid state battery assembly as in claim 1 wherein said annular wave-type spring is electrically conductive and engages an end electrode disc of said cell stack and the bottom end floor of said can.
6. A solid state battery assembly as in claim 1 wherein said inter-stack electrical connectors comprise continuous metallic ribbons.
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