The present disclosure relates to a monitoring system for an energy storage system, an energy storage system comprising such a monitoring system, a vehicle comprising such an energy storage system and a manufacturing method for such a monitoring system. The monitoring system for an energy storage system comprises a plurality of energy storage cells comprising at least one stretchable electronic unit and a communication element. The stretchable electronic unit is arrangeable at least at one of the energy storage cells. The stretchable electronic unit is configured to generate data based on strain applied on the stretchable electronic unit. The communication element is integrated in the stretchable electronic unit and configured to transfer data generated by the stretchable electronic unit.

A method for controlling a cell current limiting value for a battery management system. In some examples, the method includes determining quadratic reference currents of a battery cell; calculating a corresponding reference time constant for each reference current using a model for the calculation of a RMS value of a cell current by reference to a continuous current; constituting a diagram for the relationship between the reference time constant and the quadratic reference current; determining a predictive time constant by the comparison of a quadratic measured value of a cell current with the quadratic reference currents; calculating a predictive RMS limiting value of the cell current; calculating a first predictive limiting value for a short predictive time, a second predictive limiting value for a long predictive time, and a third predictive limiting value for a continuous predictive time; and calculating additional RMS limiting value for the cell current.

The invention relates to a mounting device (1) for a composite battery (7) consisting of a plurality of battery cells (71), comprising a printed circuit board (2) with electrical lines and switch elements for connecting the battery cells in parallel or series connection, a safety device with safety instruments (51) for the overcurrent protection of each battery cell, a housing with two housing parts (61, 62), having contact regions (63) for fixing the battery cells, wherein the contact regions of at least one housing part are designed as enclosures (64) for embracing a battery cell, the circuit board comprises recesses (23) for receiving and contacting (31, 32) in each case one battery cell in a respective enclosure, and wherein each recess embraces an enclosure with a battery cell in its maximum cross-sectional area. The mounting device makes it possible to provide a composite battery with exchangeable battery cells of different design, power and operating voltage in series or parallel connection with overcurrent protection at the cell level and a battery pack (8) with correspondingly configured composite batteries in a safe, simple and cost-effective manner by a user.

A battery pack is provided that includes battery cell magazines and a battery management system to control charging and discharging of the associated battery pack. The battery cell magazines may include a magazine housing and associated battery cells. The magazine housing may define a plurality of battery cell recesses to receive the battery cells. The battery management system may be configured to balance the state of charge of a battery stack of battery packs. Methods for balancing a state of charge of battery packs of a battery stack are also provided, as are systems for lifting a battery stack.

Discussed is an apparatus for inspecting swelling of a battery cell, the apparatus including a first plate configured in a plate shape; a second plate configured in a plate shape and located to face the first plate to be spaced therefrom by a predetermined interval, the second plate being configured so that the battery cell is to be interposed between the first plate and the second plate; a fixing frame configured so that a portion of the first plate is fixedly coupled thereto; a connection frame having one end fixedly coupled to the second plate and another end fixedly coupled to the fixing frame; and a measuring element attached to the connection frame and configured to measure a deformation rate of the connection frame based on the swelling of the battery cell.

A system for vehicle battery heating is provided. The system includes a battery, including a plurality of battery cells. The system further includes a computerized battery controller operable to selectively energize a portion of the battery cells to provide an increased temperature of the portion of the battery cells. The portion of the battery cells may be energized in a distributed pattern or a focused pattern.

An embodiment fire safety system for a mobility includes an air conditioner system including a compressor, a condenser, an expander, and an evaporator, wherein the air conditioner system is configured to circulate a refrigerant through the compressor, the condenser, the expander, and the evaporator, a battery pack including a battery and a temperature sensor, a refrigerant injector installed in the battery pack and coupled to the air conditioner system, and a controller configured to control the refrigerant injector to selectively inject the refrigerant into the battery in response to a temperature of the battery measured by the temperature sensor being equal to or greater than a temperature threshold.

An information calculation system acquires a battery load history of a secondary battery that has been used. The information calculation system calculates first degradation states of a plurality of battery constituent elements of the secondary battery, based on the battery load history acquired and a plurality of degradation factors related to each of the battery constituent elements. The information calculation system acquires estimated load information on a load that is estimated to act on the secondary battery when the secondary battery is used in a future application. The information calculation system calculates future second degradation states of the plurality of battery constituent elements of the secondary battery when the secondary battery is used in the future application, based on the first degradation states related to the battery constituent elements calculated, the estimated load information acquired, and the plurality of degradation factors related to the battery constituent elements.

A battery system has a battery cell including a can, and a ceramic substrate, including a patterned metallized surface, mounted to the can via a thermally conductive adhesive. The battery system also has a monolithic integrated circuit that measures and transmits data about the cell mounted to the patterned metallized surface such that the ceramic substrate and monolithic integrated circuit are electrically isolated from one another.

A secondary battery includes a battery element including a positive electrode, a negative electrode, and an electrolytic solution, a housing member configured to accommodate the battery element, and a safety valve mechanism attached to the housing member. The safety valve mechanism includes a valve member including an opening valve portion configured to be opened; and an opening member including a plurality of opening portions radially arranged in a region opposed to the opening valve portion from a center of the region as a base point, and a plurality of protrusion portions radially arranged in a region outside the plurality of opening portions from the center and the plurality of protrusion portions protrude toward the plurality of opening portions. A number of the opening portions and a number of the protrusion portions are equal to each other, and each of the plurality of opening portions and each of the plurality of protrusion portions are opposed to each other in a direction toward the center.