A module layer and to a battery system made therefrom, which, as a device for supplying and storing electrical energy between two final end components, comprises a number of battery modules that are electrically connected to one another in series. Each module here consists of a number of elementary cells, which are generally lithium-ion batteries. The module layer is embodied as a structural unit, wherein the cells in the module layer are positioned next to one another in a tray, in an upright position on a base element of the tray, and are enclosed by an outer frame that is embodied as a heat sink and constitutes the rim of the tray, the outer frame has a seal, and the module layer has a section of a central shaft into which bus bars protrude, which produce a conductive connection with the cells of the respective module layer.

Disclosed is a battery having a conductive terminal extending beyond a surface of a battery cover, the conductive terminal having an internal portion and an external surface, wherein the internal portion comprises lead and external surface comprises a non-lead conductive material. Further disclosed is a method for producing such a battery.

A secondary battery disclosed here includes; an electrode body; a battery case including a case body and a lid; an external terminal; and a gasket insulates the lid and the external terminal at an outer side of the battery case. The lid has an attachment hole to which the external terminal is attached. The external terminal includes a shaft inserted in the attachment hole and a head extending radially outward from one end of the shaft. The gasket includes a bearing portion disposed between a bottom surface of the head and the lid, and a side wall rising upward from the bearing portion. The head has a chamfered portion in which at least a part of as outer periphery of the bottom surface. A gap is formed between the chamfered portion and each of the bearing portion and the side wall.

A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly which is charged with an electric current and discharged; a casing which accommodates therein the electrode assembly; a cap plate which is coupled to an opening of the casing; and an electrode terminal which is electrically connected to the electrode assembly and installed in a terminal hole of the cap plate, the electrode terminal including: a plate terminal which is disposed outside the cap plate and has a coupling hole; and a rivet terminal which is installed in the terminal hole and coupled to the coupling hole, and the plate terminal and the rivet terminal include torque resistance increasing portions which are formed at a coupling interface between the coupling hole and the rivet terminal and increase torque resistive force of the plate terminal with respect to a z-axis of the rivet terminal.

Disclosed is a lead acid battery including a housing having an exterior. The battery also includes a lead terminal extending through the housing to the exterior of the housing. A coating covers the lead terminal such that there is no exposed lead exterior to the housing.

A battery module according to one embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells including electrode leads are stacked; an insulating cover that covers the front surface and rear surface of the battery cell stack in which the electrode leads protrude; and a sensing assembly located between the battery cell stack and the insulating cover. The sensing assembly is mounted on the inside surface of the insulating cover and connected to the electrode lead.

This invention provides a thermal runaway suppression element for lithium batteries and the related applications. The thermal runaway suppression element includes a composite salt layer provided by a eutectic mixture containing at least two single inorganic salts. The composite salt layer has a melting point between 90 to 150° C. At least one of the single inorganic salts comprises a cation, which is an amphoteric metal ion or an alkali metal ion. The thermal runaway suppression element is disposed inside or outside the lithium battery. When the temperature of the lithium battery reaches to 90 to 150° C., the composite slat layer will be molten and reacts with the electrochemical reaction system to passivate the active materials and decrease ionic and electronic conductivity. Therefore, the thermal runaway event and its derived problem are efficiently solved.

A solid-state battery that includes: a solid-state battery main portion having a positive electrode layer and a negative electrode layer alternatively stacked with a solid electrolyte layer interposed therebetween; a first end surface electrode electrically connected to the positive electrode layer and disposed on a first side surface of the solid-state battery main portion; a second end surface electrode electrically connected to the negative electrode layer and disposed on a second side surface of the solid-state battery main portion; a first lower surface electrode electrically connected to the first end surface electrode and disposed on a lower surface side of the solid-state battery main portion; and a second lower surface electrode electrically connected to the second end surface electrode and disposed on the lower surface side of the solid-state battery main portion.

This disclosure presents an electrode lead plate (6) for a cylindrical secondary cell (1) comprising a terminal part (4) and an electrode roll (3) comprising a conductive sheet (3a). The electrode lead plate (6) comprises an inner contact region (6c) configured to be arranged in direct electrical contact with the terminal part (4) and an outer contact region (6e) configured to be arranged in direct electrical contact with the conductive sheet (3a), wherein the inner contact region (6c) is recessed in relation to the outer contact region (6e). Further, a terminal part (4) and a cylindrical secondary cell (1), as well as uses and methods of manufacture, are presented.

An electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The electrode assembly is formed by winding the first electrode plate, the separator, and the second electrode plate. The electrode assembly further includes a first tab, a second tab, and a third tab. The first tab is disposed on the first electrode plate. The third tab and the second tab are disposed on the second electrode plate. In a thickness direction of the electrode assembly projections of the first tab, the second tab, and the third tab do not overlap. The electrode assembly is provided with a multi-tab structure, and uses a plurality of parallel-connected tabs to shunt a current to achieve purposes of enhancing a curent-carrying capacity of a battery and reducing a temperature rise. This application further provides a battery containing the electrode assemby.