Abstract: A battery storage arrangement includes a support structure having at least one first battery monobloc reception for receiving at least one battery monobloc, and a layer of sheet configured to be arranged at a side of the at least one battery monobloc for catching electrolyte leaking from a battery monobloc of the battery monobloc.

Abstract: A monitoring system for monitoring a battery comprising a battery monobloc includes a multi-sensing visual device that is attachable to a housing of the battery monobloc and configured to measure a plurality of characteristics relating to the battery monobloc, and to indicate the plurality of measured characteristics optically.

Abstract: A detection cable configured to detect a leakage and a swelling of at least one battery includes first and second leakage detection wires, and a swelling detection wire, arranged inside a liquid-permeable cable jacket. Each leakage detection wire includes a conductor wire disposed inside a liquid-permeable wire jacket so that a leakage liquid entering the liquid-permeable cable jacket changes a resistance between the conductor wires of either or both leakage detection wires. The swelling detection wire comprises an elastic material with conductive additives so that a resistance of the swelling detection wire changes when it is elongated.

Abstract: An electrochemical device comprises device comprising at least one pouch cell and a safety arrangement is described. The safety arrangement comprises a holding structure and at least one pouch piercing element. The at least one pouch piercing element is held adjacent to a corresponding pouch cell by the holding structure with a piercing end facing the corresponding pouch cell. Each flexible pouch cell is attached to the holding structure and is expandable in at least one direction, and one of the directions is towards the corresponding piercing element so that the piercing element pierces the pouch cell at the piercing end.

Abstract: An electrochemical device includes at least one enclosure for a stack of sheets of electrochemical device forming material including at least one sheet of a first type of electrode, at least one sheet of a second type of electrode and at least one separator sheet between the sheets of the two types of electrodes, where the enclosure includes a number of pieces including a first piece and a second piece, which pieces are joined to each other using welding, hemming, crimping or punchcrimping for forming an interior volume that houses the stack.

Abstract: The present disclosure relates to a preventive battery discharge system for a battery system. The battery discharge system comprises an interface for receiving a thermal runaway indication signal for a first battery cell assembly and an energy sink device, wherein the energy sink device is connectable with a plurality of battery cell assemblies by a switching unit, wherein the energy sink device is configured to receive electrical energy discharged from at least one second battery cell assembly. The battery discharge system further comprises a control module configured to identify the at least one second battery cell assembly to be discharged based upon the thermal runaway indication signal and is configured to control the switching unit to discharge the at least one second battery cell assembly and to transport energy from the at least one second battery cell assembly to the energy sink device after receiving a thermal runaway indication signal.

Abstract: The present disclosure provides a battery module, an apparatus and method for manufacturing said battery module, and a method of disassembling said battery module. The battery module of the present disclosure is comprised of a plurality of pouch battery cells arranged within a structural enclosure, such that the battery module is folded about a plurality of module folding lines to form a folded battery module. Embodiments of the battery module provide improved mechanical strength and stiffness, improved safety, lower weight and cost, and provides further improvements to disassembly and recycling of the battery module.

Abstract: In one aspect, a removable battery module for a rack system that includes at least one rack controller is provided. The removable battery module includes at least one battery, a communication interface configured to communicatively couple with the at least one rack controller, and a module controller. The module controller is configured to estimate a state of charge (SOC) of the at least one battery at startup, determine whether at least one trigger has occurred, and start a float timer in response to determining that the at least one trigger has occurred. The module controller is further configured to generate a current estimate for the SOC by increasing the estimated SOC over a remaining time of the float timer based on a float current, and report, via the communication interface, the current estimate for the SOC to the at least one rack controller.