Systems and/or techniques associated with a sandwich-parallel micro-battery are provided. In one example, a device comprises a first battery and a second battery. The first battery comprises a first surface and a second surface. The second surface is smaller than the first surface. The second battery comprises a third surface and a fourth surface. The fourth surface is smaller than the third surface. Furthermore, the fourth surface is mechanically coupled to the second surface of the first battery. The third surface of the second battery and the first surface of the first battery comprise a conductive contact that electrically couples the first battery and the second battery.

A semiconductor device structure and method for forming the same is disclosed. The structure incudes a silicon substrate having at least one trench disposed therein. An electrical and ionic insulating layer is disposed over at least a top surface of the substrate. A plurality of energy storage device layers is formed within the one trench. The plurality of layers includes at least a cathode-based active electrode having a thickness of, for example, at least 100 nm and an internal resistance of, for example, less than 50 Ohms/cm.sup.2. The method includes forming at least one trench in a silicon substrate. An electrical and ionic insulating layer(s) is formed and disposed over at least a top surface of the silicon substrate. A plurality of energy storage device layers is formed within the trench. Each layer of the plurality of energy storage device layers is independently processed and integrated into the trench.

A terminal case configured to effectively estimate the life or degradation of a secondary battery as the secondary battery degrades includes a housing that can be coupled to the secondary battery, a plurality of normal mode terminals disposed on a first surface of the housing and a plurality of measurement mode terminals disposed on a second surface of the housing. The housing is configured to be coupled to the secondary battery with either the first surface or the second surface facing the secondary battery, such as by rotation of the housing about an axis passing through a center of two surfaces of the housing that are parallel to one another and perpendicular to both the first and second surfaces of the housing.

Provided are multilayered flexible battery interconnects for interconnecting batteries in battery packs and methods of fabricating thereof. A multilayered flexible battery interconnect comprises insulating layers and two conductive layers, stacked together and positioned between the insulating layers. One conductive layer is thicker than the other. The thinner conductive layer comprises flexible tabs for connecting to batteries and, in some examples, comprises voltage sense traces. The smaller thickness of these flexible tabs ensures welding quality and allows using less energy during welding. The battery cell contacts, to which these flexible tabs are welded, can be significantly thicker. Furthermore, the smaller thickness enables fusible link integration into flexible tabs. At the same time, the two conductive layers collectively conduct current within the interconnect, with the thicker layer enhancing the overall current-carrying capacity. The two conductive layers can be welded together to ensure electric connections and mechanical support.

Provided are multilayered flexible battery interconnects for interconnecting batteries in battery packs and methods of fabricating thereof. A multilayered flexible battery interconnect comprises insulating layers and two conductive layers, stacked together and positioned between the insulating layers. One conductive layer is thicker than the other. The thinner conductive layer comprises flexible tabs for connecting to batteries and, in some examples, comprises voltage sense traces. The smaller thickness of these flexible tabs ensures welding quality and allows using less energy during welding. The battery cell contacts, to which these flexible tabs are welded, can be significantly thicker. Furthermore, the smaller thickness enables fusible link integration into flexible tabs. At the same time, the two conductive layers collectively conduct current within the interconnect, with the thicker layer enhancing the overall current-carrying capacity. The two conductive layers can be welded together to ensure electric connections and mechanical support.

The disclosure discloses a battery and a battery apparatus. The battery includes two opposite first surfaces and four second surfaces disposed around the first surfaces, a pole assembly and a busbar. An area of the first surface is larger than an area of the second surface. The pole assembly is disposed on the first surface. The busbar is bent into a first segment and a second segment. The first segment is located at a side of the first surface where the pole assembly is disposed and is connected to the pole assembly. The second segment is parallel to or substantially parallel to a second surface and is used for electrically connecting the pole assembly of another battery.

The present disclosure relates to a coupling device for coupling two or more tab electric terminals of distinct battery cells. A pair of U-shaped jaws retains the terminals therebetween with the electrical contact surfaces facing each other. A clamping element is configured to clamp the jaws towards each other in the first direction. During the clamping, an inclined wedge surface converts the pressure in the first direction to a pressure on the terminals in a second direction, so as to establish a reliable electrical contact between the terminals, direct or with the interposition of a spacing block. Wedge surfaces can be provided laterally, for example in the arms of the jaws, or between distinct bodies forming a spacing block between the terminals.

The present disclosure relates to a coupling device for coupling two or more tab electric terminals of distinct battery cells. A pair of U-shaped jaws retains the terminals therebetween with the electrical contact surfaces facing each other. A clamping element is configured to clamp the jaws towards each other in the first direction. During the clamping, an inclined wedge surface converts the pressure in the first direction to a pressure on the terminals in a second direction, so as to establish a reliable electrical contact between the terminals, direct or with the interposition of a spacing block. Wedge surfaces can be provided laterally, for example in the arms of the jaws, or between distinct bodies forming a spacing block between the terminals.

A package structure and its related electricity supply system are disclosed. Two substrates of the package structure are directly or indirectly served as current collectors of the electricity supply system. The sealing frame of the package structure is made of several silicone layers having high moisture-resistance and/or high gas-resistance. Hence, the package structure mentioned may not only provide a novel electrical conduction module to lower the intrinsic impedance of the electricity supply system itself but prevent the moisture and the gas outward from the electricity supply unit inside the package structure as well. Consequently, the electrical performance and safety of the electricity supply system are both improved.

A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly including a first electrode, a second electrode, and a separator that is disposed between the first electrode and the second electrode; a case where the electrode assembly is embedded; a cap plate that is coupled to an opening of the case; and a first electrode terminal provided on an upper side of the cap plate and having a first plate terminal that is electrically connected with the cap plate through a fuse portion and a second electrode terminal provided on the upper side of the cap plate and to that is electrically connected with the second electrode by penetrating through the cap plate.