Electrical energy storage cell and method for producing an electrical energy storage cell
A technology for electric energy storage and battery storage, which is applied in secondary battery manufacturing, alkaline storage battery manufacturing, primary battery to battery grouping, etc. It can solve the problems of increased wear and tear of switching devices, low efficiency of BDI, and increased manufacturing technology to achieve battery inductance Reduce, reduce construction space requirements, reduce the effect of energy loss
Active Publication Date: 2015-04-29
ROBERT BOSCH GMBH
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Problems solved by technology
If the energy storage battery is used, for example, in a battery system with an integrated converter, a so-called BDI, the inductive component of the energy storage battery impedance can lead to this inversion at a high operating frequency of the converter. Correspondingly high energy losses in the power electronic switching devices of the
This can therefore lead to increased wear of the switchgear, lower efficiency of the BDI, and increased manufacturing outlay for implementing a cooling system with sufficient cooling capacity
Method used
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[0029]Electrical energy storage batteries within the meaning of the present invention include all devices which are capable of storing electrical energy for a predetermined period of time and delivering it again for another period of time. Energy storage cells within the meaning of the invention include all types of secondary and primary energy stores, in particular capacitive, electrochemical (Faraday) and combined storage types. The period of time considered can here range from a few seconds up to hours, days or years. Electrical energy storage batteries may include, for example, batteries based on lead, zinc, sodium, lithium, magnesium, sulfur or other metals, elements or alloys, lithium ion batteries, lithium polymer batteries, nickel metal hydride batteries, supercapacitors, supercapacitors, electric Capacitor, BatCap or similar system. The function of the electrical energy storage cells encompassed by the invention can be based here on intercalation electrodes, reaction...
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The invention relates to an electrical energy storage cell with a plurality of first planar electrode foils having cutouts on a long side thereof, and a plurality of second planar electrode foils having contact lugs on a long side thereof, said contact lugs being congruent with the cutouts. The first planar electrode foils and the second planar electrode foils are stacked alternately and in plane-parallel relative each other to give a storage cell stack such that the contact lugs alternately overlap the cutouts.
Description
technical field [0001] The invention relates to an electrical energy storage battery and a method for producing an electrical energy storage battery. Background technique [0002] The DC power is usually taken from or fed into the electrical energy storage battery. Therefore, currently known configurations of energy storage batteries are optimized for the specific energy or power density and ohmic internal resistance of the energy storage battery. [0003] In many applications of electrical energy storage batteries, the storage cells are interconnected into battery modules in a series or parallel arrangement in order to adjust desired output parameters such as overall voltage, voltage range, stored energy or power density. Document DE 10 2010 035 114 A1 discloses, for example, a battery unit having a plurality of battery cells each having battery cells galvanically coupled via bus bars. Document EP 2 413 414 A2 discloses a flat battery (Akkuflachzelle) with anode and catho...
Claims
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IPC IPC(8): H01M2/26H01M4/70H01M10/04H01M10/0585H01M6/12H01M6/46H01M10/28H01M50/54
CPCH01M4/70H01M10/0413H01M10/0436H01M6/12H01M6/46H01M10/281H01M10/0585H01M50/54Y02E60/10Y02P70/50
Inventor M. 凯斯勒V. 德格A. 蒂芬巴赫A. 施密特
Owner ROBERT BOSCH GMBH