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US 9,806,309 B2Granted
Apparatus and method for increasing the safety during the use of battery systems
AssigneeRobert Bosch GmbH
InventorUlrich Zimmermann
Life of this patent
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Abstract
A battery system, in particular a lithium-ion battery system, comprising a discharge line (AL) with an opening for discharging substances which are produced in the battery system, in particular gases, to the surroundings of the battery system.
Claims10
A lithium-ion battery system comprising:
- a discharge line (AL) including an end with an opening for discharging substances produced in the battery system to the surroundings of the battery system, wherein the end is at a boundary between an interior of the discharge line (AL) and the exterior of the battery system;
- and
- a closure (V) including a closing component (K, RD) attached at the end of the discharge line (AL) and, when in a closed position, closes the opening of the discharge line (AL) in a sealed manner, and
- wherein the closing component (K, RD) opens uni-directionally and is biased toward the closed position by an element of the closure (V) arranged in the interior of the discharge line (AL).
1 more element
A method for increasing the safety when dealing with discharge lines (AL) of lithium-ion battery systems, suitable for the controlled degassing of battery systems, the method comprising:
- providing a discharge line (AL) having an end with an opening, wherein the end is at a boundary between an interior of the discharge line (AL) and exterior of the battery system;
- providing a closure (V) having a closing component (K, RD) attached at the end of the discharge line (AL) and, when in a closed position, the closing component (K, RD) closes the opening of the discharge line (AL) in a sealed manner, and wherein the closing component (K, RD) opens uni-directionally;
- discharging substances produced in the battery system to the surroundings of the battery system by opening the closing component (K, RD) when a threshold value of the pressure which prevails in the discharge line (AL) is reached or exceeded;
- and
- sealing the opening of the discharge line (AL) with the closing component (K, RD) in response to a biasing force generated by an element of the closure (V) arranged in the interior of the discharge line (AL).
2 more elements
Dependencies are inferred from the claim text.