An electrode assembly has a positive electrode plate and a negative electrode plate. The battery case accommodates the electrode assembly. A tab portion is provided on at least one of the positive electrode plate and the negative electrode plate and extends on a side of the electrode assembly. A current collector is connected to the tab portion. An insulating sheet is disposed between the electrode assembly and the battery case and has a fold-over portion between the battery case and the current collector. The current collector faces a side surface of the battery case with the tab portion being folded. A joined portion at which portions of the insulating sheet are joined to each other is formed in the fold-over portion.

The power storage device includes a power storage module and a conductive plate. The power storage module includes an electrode laminate including current collectors stacked on each other in a first direction. At least one of the positive electrode terminal electrode, the negative electrode terminal electrode, and the bipolar electrode includes an active material layer including grooves arranged in a second direction orthogonal to the first direction, and the grooves extend in a third direction crossing the second direction. The conductive plate includes an outer surface including depressions depressed in the first direction and extending in the second direction, the current collector arranged at the stack end of the electrode laminate includes an exposed face in contact with the outer surface, the exposed surface includes protrusions overlapping the active material layer in the first direction, and the protrusions protrude in the first direction and extend in the third direction.

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.

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.

The present invention relates generally to a modular multiple magnetic contact connectable solid state battery block apparatus, a process thereof, and a method of using same. More particularly, the invention encompasses a modular magnetic multiple contact connectable solid-state battery block brick that has magnetic polarity, along with electrical polarity so that it can magnetically, and electronically mate with another similar solid-state battery. Each modular solid-state battery is provided with at least one pimple or positive contact protrusion, and at least one dimple or a negative contact detrusion. The modular solid-state battery comes in different shapes and sizes, such as, triangular, rectangular, polygonal, circular, elliptical, etc. The invention also provides a method of using the inventive modular magnetic multiple contact connectable solid state battery block brick or apparatus, so at to form a series of solid-state batteries in order to provide the needed power to electronic device(s).

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 secondary battery and a battery unit is provided. The secondary battery includes: a housing including an accommodating hole with an opening; a top cover assembly connected to the housing in a sealed manner to cover and close the opening; an electrode assembly arranged in the accommodating hole, wherein the top cover assembly is spaced apart from the electrode assembly to form a first buffer gap for buffering the amount of expansion deformation of the electrode assembly in the axial direction. When the secondary battery expands, the first buffer gap can absorb the amount of expansion deformation to prevent the top cover assembly from being disconnected from the housing due to excessive stress, so as to reduce the possibility of failure of the secondary battery due to damage of the overall structure, thereby ensuring the structural integrity and the safety of the secondary battery.

A metal-air battery comprises a casing including a first surface having breathability and second surface different from the first surface; and a positive electrode housed in the casing, a negative electrode housed in the casing, a positive-electrode terminal electrically connected to the positive electrode and exposed from the casing, a negative-electrode terminal electrically connected to the negative electrode and exposed from the casing, and an adhesive layer containing an adhesive and provided on a portion of the second surface.

Disclosed is a battery cell, which includes a battery case having an accommodation portion in which an electrode assembly is mounted, and a sealing portion formed by sealing an outer periphery thereof; an electrode lead electrically connected to an electrode tab included in the electrode assembly and protruding out of the battery case via the sealing portion; and a lead film located at a portion corresponding to the sealing portion in at least one of an upper portion and a lower portion of the electrode lead, wherein the lead film includes a first stepped portion protruding in a direction opposite to the electrode lead, the sealing portion includes a second stepped portion surrounding an outer surface of the first stepped portion, and a gas discharge guiding unit is inserted in the first stepped portion.

A battery includes a first power generation element, a first outer cover body which encloses the first power generation element, and a first planar electrode having, as principal surfaces, a first connecting surface and a first protruding surface opposite the first connecting surface. The first connecting surface is electrically connected to the first power generation element. The first outer cover body includes a first covering portion provided with a first opening. The first protruding surface protrudes from the first opening toward an outside of the first covering portion. The first covering portion is joined to at least one of the first planar electrode and the first power generation element.