Accumulator cell with coated terminal
A technology for batteries and battery packs, applied in coatings, small-sized batteries/batteries, electrical components, etc., can solve problems such as failure and decomposition of lithium-ion systems, and achieve the effect of saving weight and increasing energy density
Active Publication Date: 2013-10-02
ROBERT BOSCH GMBH +1
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- Description
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- Application Information
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Problems solved by technology
For this reason, in the case of general mechanical loads in the operating state, such as electrical oscillations, this can lead to disintegration of the connection and thus to the failure of the entire Li-ion system
Method used
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[0037] figure 1 A terminal 10 for a battery cell according to the invention, not shown, is disclosed, which is connected to a collector 11 . The terminal 10 is completely covered with a coating 12 made of metal, which is used as a connector when assembling the battery cells into larger units.
[0038] figure 2 The assembly of a battery cell 20 according to the invention is shown, which has two terminals 10 and 21 , wherein the terminal 10 or both terminals 10 , 21 are provided with a coating 12 according to the invention. Several battery cells 20 can be combined to form a battery module 22 and this can be combined to form a battery pack 23 , wherein the terminals 10 and 21 are respectively connected accordingly.
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Abstract
The invention relates to an accumulator cell (20) comprising two terminals (10, 21). One terminal (10) is provided with a coating (12) made of a metal. The metal is identical to the metal of which the second terminal (21) consists, or each terminal (10, 21) is coated with a coating (12) made of the same metal. The invention further relates to an accumulator and a motor vehicle with an accumulator.
Description
technical field [0001] The invention relates to a battery unit with two terminals, a battery with at least two battery cells and a motor vehicle with an electric drive motor for driving the motor vehicle and a battery pack connected or connectable to the electric drive motor . Background technique [0002] Lithium-ion accumulators have at least one positive electrode and one negative electrode (cathode and anode), which are capable of reversible intercalation (intercalation) or reintercalation (deintercalation) of lithium ions (Li+). The concepts lithium-ion battery, polymer lithium-ion battery, lithium-ion battery, lithium-ion battery, lithium-ion battery pack and lithium-ion battery system are used synonymously. [0003] The demands placed on lithium-ion battery packs are high, especially in the field of automation with regard to gravimetric energy density (in Wh / kg), in order, for example, to achieve the greatest possible range of vehicles driven by electric motors. The...
Claims
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IPC IPC(8): H01M2/20H01M2/30C25D7/00C23C14/34C23C14/22H01M50/522H01M50/55H01M50/562
CPCC25D7/00Y02E60/10H01M50/562H01M50/522H01M50/55
Inventor T·韦尔勒J·费策尔S·洛伊特纳H·芬克
Owner ROBERT BOSCH GMBH