A secondary battery pack includes: a secondary battery module including battery cells and cooling fins; a first structure formed under the secondary battery module and including a cooling channel and coupling brackets; a second structure which is formed in a shape mounted on side faces of the secondary battery module and includes a printed circuit board; and a cover mounted over the second structure.

An example of a thermal composite includes a substrate, a primer layer, a first adhesive layer, a blanket layer, a second adhesive layer, and a metal layer. The blanket layer includes basalt fibers or glass fibers. The thermal composite may be incorporated into a battery pack as a battery enclosure.

The present application provides an insulating composite plate comprising: an upper plate layer, a lower plate layer, and a middle plate layer, wherein the upper plate layer and the lower plate layer are made of a thermoplastic material; the middle plate layer is located between the upper plate layer and the lower plate layer, the middle plate layer being a metal mesh; the upper surface of the middle plate layer and the lower surface of the upper plate layer are bonded together, and the lower surface of the middle plate layer and the upper surface of the lower plate layer are bonded together. An insulating composite plate provided by this application has good insulation properties and can shield electromagnetic interference.

Disclosed is a battery module, which includes: a plurality of battery cells stacked on one another; a cell housing configured to accommodate the plurality of battery cells; and a cover bus bar configured to cover an entire upper side of the cell housing and including electrode connection layers. The cover bus bar may be electrically connected to electrodes of the plurality of battery cells through the electrode connection layers. The electrode connection layers may be arranged in a layered structure.

Battery systems and associated methods are described herein. A representative battery system includes: a plurality of individual battery units that each include a battery cell enclosed in a housing with a sensor therein configured to sense a physical characteristic of the battery cell; and a controller configured to connect/disconnect each battery cell according to its physical status to/from a device/system monitoring the battery system, such as an overarching vehicle control system. A battery system may comprising an energy storage cell; a cell container surrounding the energy storage cell and comprising at least one power output terminal and a test port; an external housing defining an enclosure configured to encompass the cell container; a conduit attached to the test port of the cell container and accessible through the external housing; and a valve positioned within the conduit and controlling fluidic flow through the conduit.

A battery device (100) comprising a battery cell pack including a plurality of battery cells (118). The battery device further includes a structure (104) disposed on top of the battery cell pack, the structure including an insulating material (106), and a housing (102), in which the battery cell pack and the structure are arranged. At least an upper surface (110) of the structure has heat- and fire-resistant properties. The insulating material includes a plurality of weakened portions or cuts (112) extending through the insulating material. The structure is arranged such that, in case of burnout of a cell (118a), a ventilation passage (116) is formed over the cell through a weakened portion or cut in the insulating material.

A battery device (100) comprising a battery cell pack including a plurality of battery cells (118). The battery device further includes a structure (104) disposed on top of the battery cell pack, the structure including an insulating material (106), and a housing (102), in which the battery cell pack and the structure are arranged. At least an upper surface (110) of the structure has heat- and fire-resistant properties. The insulating material includes a plurality of weakened portions or cuts (112) extending through the insulating material. The structure is arranged such that, in case of burnout of a cell (118a), a ventilation passage (116) is formed over the cell through a weakened portion or cut in the insulating material.

A wiring conductor includes a first electrode located on a bottom surface of a recessed portion, a second electrode located on a first surface between a frame portion and the recessed portion, a first external electrode located on a second surface, and a second external electrode located on the second surface and electrically connected to the second electrode. A conductive sheet is electrically connected to the second electrode and extends over an opening of the recessed portion above the first surface.

A multilayer material for use as a thermal insulation barrier and/or flame barrier in a rechargeable electrical energy storage system is provided. The multilayer material comprises at least one inorganic fabric layer bonded to a nonwoven layer comprising inorganic particles and inorganic fibers by an inorganic adhesive, wherein the inorganic adhesive. The inorganic adhesive can be a modified inorganic adhesive comprising at least 99 wt. % inorganic constituents and an organic additive of at least 0.01 wt. % and less than 1 wt. % based on a total solids content of the inorganic adhesive.

A multilayer material for use as a thermal insulation barrier and/or flame barrier in a rechargeable electrical energy storage system is provided. The multilayer material comprises at least one inorganic fabric layer bonded to a nonwoven layer comprising inorganic particles and inorganic fibers by an inorganic adhesive, wherein the inorganic adhesive. The inorganic adhesive can be a modified inorganic adhesive comprising at least 99 wt. % inorganic constituents and an organic additive of at least 0.01 wt. % and less than 1 wt. % based on a total solids content of the inorganic adhesive.