The present application is provided with a fluid storage apparatus of a battery pack, including: a box, where the box has an inner cavity; a partition member, where the partition member is located in the inner cavity of the box, and the partition member divides the box into a fluid storage portion and a gas storage portion. The fluid storage portion is used to store spraying liquid and the fluid storage portion has a fluid outlet; the gas storage portion is used to store gas and the gas storage portion has a fluid inlet. And the partition member is configured to move toward the fluid outlet under the action of compressed gas in the gas storage portion.

The present application is provided with a fluid storage apparatus of a battery pack, including: a box, where the box has an inner cavity; a partition member, where the partition member is located in the inner cavity of the box, and the partition member divides the box into a fluid storage portion and a gas storage portion. The fluid storage portion is used to store spraying liquid and the fluid storage portion has a fluid outlet; the gas storage portion is used to store gas and the gas storage portion has a fluid inlet. And the partition member is configured to move toward the fluid outlet under the action of compressed gas in the gas storage portion.

A method for producing a battery includes discharging bubbles, which stick to an inner surface of an injection nozzle, to outside of an injection nozzle together with an electrolyte ejected from the injection nozzle by ejecting the electrolyte from the injection nozzle under atmospheric pressure before evacuating is performed.

The present invention provides a metal-acid-hydrogen energy battery which comprises an electrolyte chamber and an acid storage container, wherein an electrolyte port and a hydrogen collection port are formed in the electrolyte chamber, a metal anode and a cathode are oppositely inserted into the electrolyte chamber, the electrolyte chamber communicates with the acid storage container through an acid adding pipeline, and a valve is formed in the acid adding pipeline. The metal-acid-hydrogen energy battery has a wide application range and can be used as a power supply of transportation tools such as airplanes, automobiles, electric motorcycles, various unmanned aerial vehicles, ships and submarines.

The present disclosure provides for advantageous electrolyte filling systems/methods utilizing predetermined pressure/flow cycles. The disclosed electrolyte filling system enables filling of at least one jelly roll assembly under vacuum. The disclosed electrolyte filling system is capable of simultaneously filling at least two multi-core lithium ion batteries. The disclosed multi-core lithium ion batteries include a plurality of jelly roll assemblies positioned within cavities, which are further positioned within a sealed enclosure. The disclosed jelly roll assemblies are electrically connected to at least one bus bar. The disclosed bus bars include at least one flexible connective structure to electrically connect to a sealed enclosure.

A power storage device includes: a power storage module in which an electrolytic solution is accommodated, the power storage module including a top face, a bottom face, and a plurality of side faces provided such that the side faces connect the top face to the bottom face; a liquid discharge valve provided on at least one of the side faces; a liquid collection unit configured to collect the electrolytic solution discharged from the liquid discharge valve; an accumulation portion in which the electrolytic solution collected by the liquid collection unit is accumulated; a corrosion portion configured to corrode due to the electrolytic solution; and a detection portion configured to detect breakage of the corrosion portion. The corrosion portion is placed in a passage route along which the electrolytic solution collected by the liquid collection unit reaches the accumulation portion.

A power storage device includes a power storage module, a pair of current collector plates configured to be stacked to interpose the power storage module in a first direction that is vertical, a pair of insulating plates configured to be stacked to interpose the power storage module and the pair of current collector plates in the first direction; and a pair of restraint plates configured to be stacked to interpose the power storage module, the pair of current collector plates, and the pair of insulating plates in the first direction. The power storage module is configured to include an accommodation space that accommodates an electrolytic solution together with a power generation element. A pressure adjustment valve communicating with the accommodation space is provided on a side surface of the power storage module. The insulating plate arranged on a lower side in the first direction with respect to the power storage module is configured to include a main body portion arranged between the current collector plate and the restraint plate, and a liquid receiving portion that is provided on an outer edge portion of the main body portion, is arranged at least at a position corresponding to the pressure adjustment valve when viewed from the first direction, and stores the electrolytic solution discharged from the power storage module. The main body portion and the liquid receiving portion are integrally formed.

A power storage device includes a power storage module, a pair of current collector plates configured to be stacked to interpose the power storage module in a first direction that is vertical, a pair of insulating plates configured to be stacked to interpose the power storage module and the pair of current collector plates in the first direction; and a pair of restraint plates configured to be stacked to interpose the power storage module, the pair of current collector plates, and the pair of insulating plates in the first direction. The power storage module is configured to include an accommodation space that accommodates an electrolytic solution together with a power generation element. A pressure adjustment valve communicating with the accommodation space is provided on a side surface of the power storage module. The insulating plate arranged on a lower side in the first direction with respect to the power storage module is configured to include a main body portion arranged between the current collector plate and the restraint plate, and a liquid receiving portion that is provided on an outer edge portion of the main body portion, is arranged at least at a position corresponding to the pressure adjustment valve when viewed from the first direction, and stores the electrolytic solution discharged from the power storage module. The main body portion and the liquid receiving portion are integrally formed.

A battery module comprising a tray having an opening and having an accommodation space therein, a plurality of battery cells accommodated in the tray, a cover coupled to an upper portion of the tray to close the opening, and a conduit shaped to correspond to an arrangement of the plurality of battery cells on a surface of the cover facing the plurality of battery cells.

A battery module comprising a tray having an opening and having an accommodation space therein, a plurality of battery cells accommodated in the tray, a cover coupled to an upper portion of the tray to close the opening, and a conduit shaped to correspond to an arrangement of the plurality of battery cells on a surface of the cover facing the plurality of battery cells.