Abstract: Proposed is a method and an apparatus for automatically detecting the number of battery packs in an ESS. According to an embodiment of the present disclosure, the method includes calculating the number of analog front-ends (AFEs) through measurement of voltage of an entire ESS, confirming the number of AFEs using serial communication with the AFEs, determining whether the number of AFEs calculated through the measurement of voltage of the entire ESS and the number of AFEs determined through the serial communication with the AFEs are the same, and when the number of AFEs calculated through the measurement of voltage of the entire ESS and the number of AFEs confirmed through the serial communication with the AFEs are the same, calculating the number of battery packs using the number of AFEs.

Abstract: Proposed is a battery unit in which a plurality of cylindrical battery cells, each of which has an upper surface provided with a positive electrode and a negative electrode, are mounted in rows and columns, the battery unit including a lower housing in which a plurality of support recesses which support the plurality of battery cells are formed in rows and columns and a plurality of circulation holes communicating with the outside are formed, an upper housing coupled to the lower housing and having a plurality of straight removal regions; an electrode network provided on an upper surface of the upper housing and provided as a plurality of busbars connected to the positive electrodes of the plurality of battery cells; and a partition plate inserted into a space formed between the plurality of support recesses to divide the plurality of battery cells into predetermined rows and columns.

Abstract: Proposed is a sensing PCB of a battery unit, the sensing PCB being coupled to the battery unit in which a plurality of cylindrical battery cells, each of which has an upper surface provided with a positive electrode and an negative electrode, are mounted, and being electrically connected to an electrode network for connecting the plurality of battery cells, and the sensing PCB including a “C”-shaped substrate part coupled to the battery unit, a plurality of electrode parts arranged on the substrate part and making contact with ends of the electrode network, a pattern part formed on the substrate part and selectively connected to the plurality of electrode parts, and an output part located on the substrate part, electrically connected to the pattern part, having a connection terminal, and outputting an electric signal for each connection section of the electrode network through the pattern part.

Abstract: Proposed is a battery unit in which a plurality of cylindrical battery cells, each of which has an upper surface provided with a positive electrode and a negative electrode, are mounted in rows and columns, the battery unit including a lower housing in which a plurality of support recesses supporting the plurality of battery cells are formed in rows and columns and are spaced apart each other, an upper housing coupled to the lower housing and having a plurality of straight removal regions in which regions corresponding to the upper surfaces of the plurality of battery cells are connected each other, an electrode network provided on an upper surface of the upper housing and provided as a plurality of busbars, and a ring-shaped temperature sensor coupled to at least one of the plurality of battery cells and sensing temperature in an inner space formed by the lower and upper housings.