A thin flexible conformable electrochemical cell for powering a wearable electrical device comprising an inner electrode having an active electrode face of one charge and an outer electrode having an active electrode face of the opposite charge separated by a separator, wherein said separator comprises an electrolyte layer as a single continuous layer folded around the inner electrode, and wherein the cell has a single continuous flexible coating material folded around the separator and the inner electrode so as to offer protection for the cell, and wherein the coating material is sealable so as define access to the cell for electrode contacts for connection with the electrical device, and so as to offer avoidance of the cell short circuiting in use. Also provided are methods for cell preparation.

A battery module according to the present disclosure includes a cell assembly including a plurality of battery cells stacked in a vertical direction, each battery cell having an electrode lead in a shape of a plate that protrudes forward in a depth direction perpendicular to the vertical direction, the electrode lead being bent for surface contact in the vertical direction with an adjacent electrode lead, the electrode lead having a protruding part that protrudes forward in the depth direction from a front side end thereof, and a sensing terminal module having a plurality of sensing terminals made of an electrically conductive material and a plurality terminal seating holes in which corresponding ones of the sensing terminals are seated and supported, the protruding part of each electrode lead being press-fit into a corresponding one of the sensing terminals which compresses around the protruding part.

An energy storage device includes a case. The case includes a cover body where an electrolyte solution filling port is formed, and an electrolyte solution plug that closes the electrolyte solution filling port. The electrolyte solution plug includes a shaft part inserted into the electrolyte solution filling port, and a projecting part that projects from a periphery of the shaft part and is bonded to the cover body. In the cover body, a space adjacent to the shaft part is formed around the electrolyte solution filling port, and a tip end of the shaft part is disposed in the electrolyte solution filling port.

A method to prevent or minimize an occurrence of a thermal runaway event in a battery module of an electric vehicle. The method places a gas barrier between a venting space and a wall of each battery cell so that escaped gas from one battery cell does not impinge onto another battery cell.

An electrochemical-type power supply source is provided with: an electrochemical stack generating electric power, in the presence, internally, of electrolytic fluid, provided with a number of distinct groups of galvanic cells and of a corresponding number of electrolyte inlet pipes for introducing electrolyte into respective groups of galvanic cells and with electrolyte outlet pipes for extracting electrolyte from respective groups of galvanic cells; a main tank, fluidically coupled to the electrochemical stack and containing electrolytic fluid; and a recirculation system, defining a circulation path of the electrolytic fluid between the main tank and the electrochemical stack. A valve system that can be coupled to the electrolyte inlet and/or outlet pipes and operatively controllable to modify hydraulic and electric characteristics of the circulation path, in response to a power delivery condition by the power supply source.

A cover assembly includes a cover, a wire assembly, and a bottom cover. The cover includes a first groove formed to extend in a first direction and a second groove formed to extend in the first direction, parallel to the first groove. The wire assembly includes a first wire and a second wire positioned in the first groove and the second groove, respectively, and a third wire connected to a thermistor and positioned along one side of the cover. The bottom cover extends in a shape of the wire assembly, and is coupled to the cover to secure the wire assembly.

A liquid reserve battery including: a collapsible storage unit having a collapsible cavity for storing a liquid electrolyte therein; and a battery cell in communication with an outlet of the collapsible storage unit, the battery cell having gaps dispersed therein. Wherein the collapsible storage unit includes: a top plate having three or more first sides; a bottom plate having three or more second sides, each of the three or more first sides being angularly offset from a corresponding one of the three or more second sides about a central axis, the top plate being linearly offset from the bottom plate in a longitudinal direction along the central axis; and for each of the three of more first sides, first and second triangular sidewalls connecting the top plate bottom plate and each other.

Embodiments described herein relate to a battery. In one embodiment, a battery includes a first collector plate and a second collector plate arranged in parallel and spaced apart by an internal distance. The battery includes a first electrode and a second electrode disposed between the first collector and the second collector. The first electrode and the second electrode have a geometry that improves power and capacity of the battery. The battery further includes a separator disposed between the first electrode and the second electrode.

A crosslinked polyolefin separator which has gels with a longer side length of 50 μm or more in a number ranging from 0 to 3 per 1 m.sup.2 of the separator, and shows a standard deviation of absorbance ratio between the center of the separator and the side thereof ranging from 0.01 to 0.5 is provided. A method for manufacturing the crosslinked polyolefin separator is also provided. The method includes (S1) preparing a polyolefin porous membranes, and (S2) applying a coating solution containing an initiator and alkoxy group-containing vinylsilane onto at least one surface of the porous membrane. The coating solution can permeate even to the inside of exposed pores. Thus, it is possible to provide a crosslinked polyolefin separator in which silane crosslinking occurs uniformly even inside of the pores.

A battery container is adapted to be disposed at a battery charging station for containing a battery which has a charging port. The battery container includes a container body, a floating connector, and a coupling board. The container body includes a rear wall that is formed with a through hole. The floating connector extends movably through the through hole of the rear wall. The coupling board is secured co-movably to the floating connector and is slidable on the rear wall. The floating connector and the coupling board are movable relative to the container body and along a plane parallel to the rear wall when the battery is inserted into a receiving space of the container body to electrically connect the charging port of the battery to the floating connector.