A partition member has a thickness direction and a surface direction perpendicular to the thickness direction, and which separates single cells that make up an assembled battery in the thickness direction, or a single cell that makes up the assembled battery in the thickness direction and a member other than the single cells. The partition member includes, in the interior thereof, a fluid having a boiling point at normal pressure of 80° C. to 250° C., and a flow channel of the fluid extending along the surface direction. The fluid is held in a fluid holding part, and the fluid holding part is hermetically sealed by a packaging material.

A partition member has a thickness direction and a surface direction perpendicular to the thickness direction, and which separates single cells that make up an assembled battery in the thickness direction, or a single cell that makes up the assembled battery in the thickness direction and a member other than the single cells. The partition member includes, in the interior thereof, a fluid having a boiling point at normal pressure of 80° C. to 250° C., and a flow channel of the fluid extending along the surface direction. The fluid is held in a fluid holding part, and the fluid holding part is hermetically sealed by a packaging material.

The present invention provides a battery rack including: a housing; a plurality of battery modules stacked in the housing; and a connection member configured to electrically connect the plurality of battery modules, wherein each of the plurality of battery modules includes a plurality of battery submodules stacked on each other, and each of the plurality of battery submodules comprises: at least one cooling member; and a plurality of battery cells located on both sides with the at least one cooling member interposed therebetween, wherein at least two of the plurality of battery cells are located on each of both sides of the at least one cooling member.

Coolants based on alkylene glycols or derivatives thereof are useful for cooling systems in electric vehicles having fuel cells and/or batteries, preferably for motor vehicles, particularly preferably for passenger cars and commercial vehicles (known as light and heavy duty vehicles). The coolants contain additional corrosion inhibitors for improved corrosion protection in addition to specific azole derivatives.

The battery module of the present invention includes a plurality of battery cells and a heat exchange unit configured to cool the plurality of battery cells, and the heat exchange unit includes: a flow frame through which coolant inflows and outflows; and a frame cover which is in contact with the plurality of battery cells, wherein the frame cover is coupled to the flow frame to form a flow space, through which the inflowing and outflowing coolant flows, together with the flow frame.

An assembly comprising a housing (6) having walls (11) and containing groups of electrical cells (7). Each wall contains at least one space in which, at a given time, a flow of thermal fluid (F2) can be present.

The said space, and thus the corresponding wall (11), has a flow of fluid inlet and outlet. In a flow of fluid-tight manner, the flow of fluid inlet and outlet communicate with, respectively, a supply (25a) of thermal flow of fluid and a discharge (25b) of said flow of fluid, so that the flow of fluid can circulate in said space. Through the surrounding wall and said sealed communications, said space is physically isolated from the cells, so that the flow of fluid (F2) therein and the interior space (9) of the housing do not communicate. The wall (11) extends parallel to at least one of the lateral faces of at least one said cell (7).

An assembly comprising a housing (6) having walls (11) and containing groups of electrical cells (7). Each wall contains at least one space in which, at a given time, a flow of thermal fluid (F2) can be present.

The said space, and thus the corresponding wall (11), has a flow of fluid inlet and outlet. In a flow of fluid-tight manner, the flow of fluid inlet and outlet communicate with, respectively, a supply (25a) of thermal flow of fluid and a discharge (25b) of said flow of fluid, so that the flow of fluid can circulate in said space. Through the surrounding wall and said sealed communications, said space is physically isolated from the cells, so that the flow of fluid (F2) therein and the interior space (9) of the housing do not communicate. The wall (11) extends parallel to at least one of the lateral faces of at least one said cell (7).

Electrochemical cell battery system and associated methods of operation are provided based on the incorporation of a thermal suppression construct including a supply of cooling fluid dispensed in intimate contact with the cells disposed within an enveloping sealed enclosure. The electrochemical cells are connected electrically by bus bars to form a battery of cells. The bus bars support cooling by convection methods. The cells are allowed to float mechanically as they are charged and discharged while maintaining intimate thermal contact with the enveloping sealed enclosure through conduction and the bus bars through conduction. The system provides a method of cooling the cells by conduction and convection and that accommodates mechanical changes to both the cells and the enveloping sealed enclosure.

Thermal regulation device intended for at least one electrical component whose temperature must be regulated, the thermal regulation device including at last a housing, a cover affixed to said housing and a first circuit, configured to allow circulation of a dielectric fluid. The housing includes at least a plurality of lateral walls delimiting an internal volume of the housing in which at least the electrical component extends. The first circuit includes at least one dielectric fluid supply duct formed between the housing and the lid, at least one of the lateral walls and/or the bottom wall having at least one orifice for spraying the dielectric fluid into the internal volume, which is fluidically connected at least to the supply duct.

A battery pack includes: battery cells each including first and second end portions that are opposite each other in a length direction; a case providing an accommodation space in which each battery cell and a cooling fluid for cooling the battery cell are located, the case including a first cover covering the first end portion of the battery cell, the first cover including a first terminal hole through which the first end portion of the battery cell is partially exposed; and first and second sealing members doubly surrounding the first terminal hole from an outside of the first terminal hole to block a cooling fluid leakage passage formed through the first terminal hole. Therefore, while improving heat-dissipating performance, a cooling fluid sealing structure may be provided to the battery pack to prevent cooling fluid leakage from the accommodation space in which the battery cells are accommodated.