Systems and methods are presented herein for isolating individual battery modules of a battery container in response to a thermal runaway event using intumescent material. A pair of opposing side walls are connected by crossmembers which at least partially define bays and/or enclosures for battery modules. A gap resides between two of the bays and/or enclosures and intumescent material is applied proximate to the gap. The intumescent material is configured to expand when exposed to heat. When a thermal runaway event is caused by the operation of a battery module within an enclosure defined by the crossmembers, the intumescent material expands to at least partially seal each bay and/or enclosure to isolate the individual battery module causing the thermal runaway event and prevent the spread of the heat to battery modules in other bays and/or enclosures.

A monolithic ceramic electrochemical cell housing is provided. The housing includes two or more electrochemical sub cell housings. Each of the electrochemical sub cell housing includes an anode receptive space, a cathode receptive space, a separator between the anode receptive space and the cathode receptive space, and integrated electron conductive circuits. A first integrated electron conductive circuit is configured as an anode current collector within the anode receptive space. A second integrated electron conductive circuit is disposed as a cathode current collector within the cathode receptive space.

Provided is a lithium ion battery module that has high safety and that even when runaway occurs, makes it difficult for this runaway to spread to other cells. The lithium ion battery module includes a cell unit including a plurality of cells provided with a rupture valve and a spacer including a recess, wherein the cell unit is covered by the spacer such that the rupture valve and the recess are arranged opposite each other, the recess has a depth of more than 0.5 mm, the spacer contains a resin, and a wall section formed of the spacer is provided between adjacent cells.

The present invention relates to a method for manufacturing a secondary battery and a secondary battery. The method for manufacturing the secondary battery comprises an accommodation step of accommodating an electrode assembly in an accommodation part of a battery case, a vent membrane mounting step of mounting a vent membrane on a discharge hole, which passes between the inside and outside of the battery case, in the battery case, and a case sealing step of sealing the battery case, wherein the vent membrane allows only a gas to pass through the discharge hole of the battery case, but blocks a liquid.

A venting unit for a housing has a base body to be connected fluid-tightly to an edge of a housing opening of the housing. The base body has an exterior side and an inner side. The base body has a gas passage opening and a rim surrounding it. A membrane areally spans the gas passage opening transversely to an axial direction of the base body. The membrane is connected fluid-tightly to the base body at the rim of the base body and is arranged at the inner side of the base body. A clamping frame is connected to the base body at the inner side in a region radially outside of the rim of the base body. The clamping frame has a circumferentially extending clamping surface exerting a clamping force on the membrane to hold the membrane with friction fit between clamping frame and rim of the base body.

A motor vehicle traction battery module includes a rigid battery module housing having at least one battery element. The battery module housing has at least one planar and liquid-cooled housing. The liquid-cooled housing wall has at least one continuously linear coolant cooling channel and at least one continuously linear empty channel, which is parallel thereto and through which there is no liquid flowing. The liquid-cooled housing wall has a contact-making opening, by means of which exclusively the empty channel is interrupted, and wherein an electrical terminal element is arranged in the region of the contact-making opening, with electrical contact being made with at least one battery element by means of said electrical terminal element.

A rechargeable battery includes: an electrode assembly formed by disposing first and second electrodes on either side of each separator, the first and second electrodes each having coated regions and uncoated region tabs; a case for accommodating the electrode assembly; and a cap plate attached to an opening of the case to close and seal the case and having a vent plate formed integrally with a vent hole, wherein the vent plate is formed beyond the thickness of the cap plate.

A battery module has an improved gas venting structure, and a battery pack including the same. Heat emission efficiency of a battery cell can be improved, and the outflow of sparks or embers can be blocked even when a thermal runaway of a battery cell occurs by forming a bracket formed at a position where mesh structures are alternately formed, at an inside a plate where mesh structures are formed.

Intelligent modular battery pack assemblies and associated charging and docking systems are disclosed.

Various embodiments of the present invention pertain to a secondary battery, and a technical problem thereof to be solved is providing a secondary battery that is capable of equalizing internal/external pressure. To this end, disclosed in the present invention is a secondary battery comprising: an electrode assembly; a case that accommodates the electrode assembly; a cap plate that seals the case, and that has a safety vent that is ruptured when internal pressure of the case rises; a terminal portion that is electrically connected to the electrode assembly, and that extends outwardly from the cap plate; and a pressure equalization structure that is formed on the cap plate so as to equalize the internal pressure and external pressure of the case.