Abstract: A battery container has improved energy density and can be used in an energy storage system. The battery container includes a container body, a coupling unit configured to couple different container bodies, and a load support unit configured to support a vertical load of the container body.

Abstract: A cooling apparatus may include an electric water pump to pump coolant, a coolant channel in fluid communication with a cooling target and the electric water pump, and a thermoelectric device including a higher-temperature part and a lower-temperature part. The thermoelectric device may cool the coolant flowing into the coolant channel. The cooling apparatus may include a first heat sink disposed adjacent to the higher-temperature part, a second heat sink disposed adjacent to the coolant channel, and a cooling fan provided adjacent to the first heat sink. The cooling apparatus may include an air duct forming a first fluid line where air passes through only the first heat sink and is then discharged by operation of the cooling fan and forming a second fluid line where air passes through the first heat sink and the second heat sink and is then discharged by the operation of the cooling fan.

Abstract: A battery container includes a container housing having a plurality of unit housings to form an empty space therein; a plurality of battery modules accommodated in the inner space of the container housing and stacked in an upper and lower direction to form a module stack, so that a plurality of module stacks are arranged in a horizontal direction; and a support member configured to accommodate the plurality of battery modules while supporting at least two unit housings therebetween.

Abstract: An energy storage system according to the present disclosure includes at least one battery rack including a plurality of stacked battery modules; a container accommodating the at least one battery rack, wherein the container includes a bottom plate in which the at least one battery rack is disposed; and a fire fighting water collection chamber disposed lower than the bottom plate and having at least one side in communication with the bottom plate to allow a fire fighting water dropped from the at least one battery rack to enter.

Abstract: Disclosed is a battery container, which may effectively prevent the spread of fire. The battery container includes a container housing including an inner space formed therein, a plurality of battery modules configured to be accommodated in the inner space of the container housing and configured to be stacked in a first direction to form a plurality of module stacks arranged in a second direction; and a blocking barrier disposed between at least some adjacent module stacks among the plurality of module stacks and configured to separate the at least some adjacent module stacks.

Abstract: A battery rack according to the present disclosure includes a plurality of battery modules; a rack case having receiving portions, each receiving portion configured to and receive one of the plurality of battery modules at each predetermined height, and each receiving portion having a structure in which upper and lower sides and left and right sides are closed and front and rear sides are open; a fire fighting water supply pipe connected to each of the battery modules disposed in the receiving portions which supplies a fire fighting water when a fire occurs; and a drain guide disposed on an outer surface of the rack case including at least one surface of a front outer surface or a rear outer surface of the rack case, the drain guide being configured to guide drainage of the fire fighting water.

Abstract: A water injection unit includes an enclosure including, on at least one outer wall, a connection port connectable to a fire-fighting connection hose or a communication cable, a water tank connected to the connection port and located in the enclosure, a gas storage tank connected to the water tank to supply gas into the water tank, and a controller connected to the connection port and the gas storage tank, and configured to detect whether a fire occurs in the battery container, and allow gas in the gas storage tank to be sprayed into the water tank and allow fire extinguishing water in the water tank to be discharged due to gas pressure.

Abstract: A battery system includes a plurality of battery containers, each including a battery rack, a container housing accommodating the battery rack in an internal space, and a first power line configured to transmit charge power and discharge power, wherein the first power lines of the battery containers are connected to each other, and a control cabinet including a control module configured to control the plurality of battery containers, a cabinet housing accommodating the control module in an internal space, and a second power line configured to be connected to the first power line of one of the plurality of battery containers.

Abstract: An energy storage system includes a control container configured to be connected to an external power conversion system (PCS) and an external electrical system; and a battery container including at least one battery rack and configured to be connected to the control container.

Abstract: An energy storage system according to an aspect of the present disclosure includes a control container having a battery system controller (BSC), a master controller connected to the BSC through a first communication line, and a bank battery management system (BBMS) connected to the BSC through a second communication line; and a battery container including a slave controller connected to the master controller through the first communication line, and a rack battery management system (RBMS) connected to the BBMS through the second communication line and for monitoring a state of a corresponding battery rack.

Abstract: A battery container has excellent workability, assembly, expandability, and safety. The battery container includes at least one battery rack including a plurality of battery modules; a container housing having an empty space formed therein to accommodate the battery rack; a plurality of main connectors located on at least one side of the container housing and configured to be electrically connected to the outside; and a main bus bar connected between the plurality of main connectors to transmit power.

Abstract: Disclosed are an electrode structure including: an electrode plate; and a flow path guide disposed on one side of the electrode plate along the circumference of the electrode plate, and an electrolyzer including the electrode structure.

Abstract: Discussed is a battery module that may include a cell assembly having battery cells arranged to face each other in an arrangement direction, a bus bar assembly coupled to a side surface of the cell assembly on which electrode leads of the battery cells are located, and guide blades arranged in front of the bus bar assembly in a direction corresponding to the arrangement direction of the battery cells, wherein each of the guide blades can have a plate surface facing at least one battery cell from among the battery cells, and is coupled to the bus bar assembly to rotate by a certain angle due to a gas pressure of a gas, when the gas is generated in the at least one battery cell.

Abstract: One aspect of the present invention provides a sodium hydroxide production device, which includes: a first tank configured to store a sodium salt including two or more sodium ions in a molecule; a first electrolysis unit including a first anode chamber and a first cathode chamber which are partitioned by a first separator; and a water supply unit configured to supply water to the first tank and the first cathode chamber, wherein the first tank, a pipe configured to supply an aqueous sodium salt solution produced in the first tank to the first anode chamber, the first anode chamber, and a pipe configured to supply a material produced in the first anode chamber to the first tank constitute a closed loop, and a sodium hypochlorite production device including the same.

Abstract: One aspect of the present invention provides a sodium hypochlorite producing system, which includes: a first means configured to obtain saturated salt water and purified water; a second means including a anode chamber and a cathode chamber which are partitioned by a separator, the anode chamber allowing the saturated salt water to be converted into a anodic product including chlorine gas and anodic water, and the cathode chamber allowing the purified water to be converted into a cathodic product including sodium hydroxide, hydrogen gas, and hydroxide ions (OH?); a third means configured to react the anodic product and the cathodic product to produce a mixture including sodium hypochlorite and hydrogen gas; and a fourth means configured to prevent the sodium hydroxide or hydroxide ions (OH?) of the cathodic product or a combination thereof from moving to the anode chamber through the separator.

Abstract: Provided, according to one aspect of the present invention, are a sodium hypochlorite production system and a water treatment method using same, the sodium hypochlorite production system comprising: a first means for obtaining saturated brine and purified water using a first sub-stream branching off from a main stream of water to be treated; a second means for obtaining an anodic product and cathodic product by electrolyzing the saturated brine and purified water; and a third means for obtaining sodium hypochlorite by reacting the anodic product and cathodic product using a second sub-stream branching off from the main stream of the water to be treated.

Abstract: Disclosed are an electrode structure including: an electrode plate; and a flow path guide disposed on one side of the electrode plate along the circumference of the electrode plate, and an electrolyzer including the electrode structure.

Abstract: The present invention relates to a battery energy storage system including: a plurality of battery boxes provided with a plurality of battery packs; a plurality of power converter systems respectively connected to the plurality of battery boxes to selectively charge or discharge the plurality of battery boxes through alternating current supplied from an external power source device; a transformer disposed between the external power source device and the plurality of power converter systems; and a controller controlling the plurality of power converter systems to selectively charge or discharge the plurality of battery boxes.

Abstract: Disclosed is an energy storage system, which includes at least one battery rack including at least one battery pack, a rack housing having an accommodation space for accommodating the at least one battery rack, and a rack door unit mounted to the rack housing to open or close the accommodation space of the rack housing and at least partially made of flexible material.

Abstract: Disclosed is an apparatus and method for controlling charge and discharge of a secondary battery. The apparatus for controlling charge and discharge of the secondary battery includes the power control unit calculates an amount of discharging power of the secondary battery, and when voltage value of the secondary battery is less than a preset reference voltage value, outputs a compensation charge control signal to charge the secondary battery with an amount of charging power obtained by adding an amount of power compensation to the calculated amount of discharging power. According to the present disclosure, the problem of a charge amount of the secondary battery reducing gradually with increasing charge and discharge cycles of the secondary battery may be prevented by compensating for the charge amount of the secondary battery.