Abstract: An electrochemical device including a positive electrode current collector; a first protruding portion including a plurality of positive electrodes in electrical contact with the positive electrode current collector, and a first dented portion disposed between each positive electrode of the plurality of positive electrodes; an electrolyte layer including a second protruding portion and a second dented portion respectively disposed on the first protruding portion including the plurality of positive electrodes and the first dented portion disposed between each positive electrode of the plurality of positive electrodes; and a negative electrode current collector layer including a third protruding portion and a third dented portion respectively disposed on the second protruding portion and the second dented portion of the electrolyte layer.

Abstract: The present invention relates to a method for manufacturing an anode of a lithium-ion battery capable of controlling an expansion directionality of an anode material whose volume expands by charging, and a lithium-ion battery including the anode manufactured by the method. More specifically, the present invention provides a method capable of improving the life of a lithium-ion battery by adjusting the tensile strength of a current collector and thus controlling the expansion directionality of an anode material, which expands during charging.

Abstract: The present application relates to a binder. The present application can provide a binder which can be applied to production of silicon series negative electrodes to cope well with shrinkage and expansion by repeated charge and discharge, and has excellent binding force between active materials and adhesive force to a current collector, and an active material composition, an electrode and a secondary battery, comprising the same.

Abstract: An anomalous battery operating detection device, which includes a sensing unit capable of measuring mechanical properties of a battery, coupled to a processor for determining whether anomalous behavior has been detected. These devices measure a mechanical property, identifying a difference in the property, and based on that difference, making a determination of anomalous behavior. Non-mechanical properties may also be utilized when making the determination. Responsive actions can be taken once the anomalous behavior is detected. The battery can be intercalated, and may be a lithium-ion battery cell. Alternatively, the sensing unit may measure strain. In addition, more than one sensing unit may be utilized, or a separate light source may be introduced. The system may be configured to allow the processor to determine the potential for failure before the battery fails.

Abstract: A battery module includes a housing including a first interior surface, a second interior surface opposite the first interior surface, and a cell assembly disposed within an interior space of the housing between the first and second interior surfaces. The cell assembly includes a plurality of prismatic battery cells arranged in a cell stack that includes a first end, and a second end opposite the first end. A wall is disposed between the first end of the cell stack and one of the interior surfaces of the housing. The wall includes a first surface in contact with the first end of the cell stack and a second surface opposite the first surface.

Abstract: A battery pack includes stacked battery cells, each battery cell including a first outer surface having an electrode tab protruding therefrom and a second outer surface that is a side surface intersecting the first outer surface, and a first case that surrounds the battery cells along the first outer surface and the second outer surface. An opening exposing the electrode tab is formed in the first case. The opening includes an inner surface that faces a side surface of all of the electrode tabs exposed through the opening and that is capable of abutting against the electrode tabs when the battery cells are inserted in the first case.

Abstract: Provided is a technique capable of detecting deformation based on an abnormality such as heat generation in an article by a simpler, smaller, or lower-cost configuration, to suppress occurrence of an accident due to the abnormality of the article. An abnormality detector for measuring deformation of a battery B, such as a lithium-ion battery, to detect an abnormality of the battery, the abnormality detector includes: a sealed container disposed in close contact with at least a part of an outer surface of the battery, while containing and sealing a fluid such as water, the sealed container having flexibility; and a pressure sensor configured to measure a change inside the sealed container, accompanying deformation of the battery.

Abstract: A battery pack includes: a housing; a battery stack being housed in the housing, the battery stack including a plurality of prismatic batteries stacked on each other in a row; a one-side restraint portion that restrains one side of the battery stack in a Y direction; an opposite-side restraint portion that restrains another side of the battery stack in the Y direction; a housing-side end plate that restrains one side in the X direction of the battery stack and oppositely faces a housing inner-surface in the X direction; and a plate movement allowing and positioning mechanism that allows movement of the housing-side end plate in the X direction due to the expansion of the battery stack in the X direction, and positions the housing-side end plate with respect to housing 2 in the Y direction.

Abstract: A method for encapsulating a microelectronic device, arranged on a support substrate, with an encapsulation cover includes, inter alia, the following sequence of steps: a) providing a support substrate on which a microelectronic device is arranged, b) depositing a bonding layer on the first face of the substrate, around the microelectronic device, c) positioning an encapsulation cover on the bonding layer in such a way as to encapsulate the microelectronic device, d) thinning the second main face of the support substrate and the second main face of the encapsulation cover by chemical etching.

Abstract: A battery pack includes: a housing; a battery stack being housed in the housing, the battery stack including a plurality of prismatic batteries stacked on each other in a row; a one-side restraint portion that restrains one side of the battery stack in a Y direction; an opposite-side restraint portion that restrains another side of the battery stack in the Y direction; a housing-side end plate that restrains one side in the X direction of the battery stack and oppositely faces a housing inner-surface in the X direction; and a plate movement allowing and positioning mechanism that allows movement of the housing-side end plate in the X direction due to the expansion of the battery stack in the X direction, and positions the housing-side end plate with respect to housing 2 in the Y direction.

Abstract: An electronic device includes a base substrate, and a plurality of battery substrates constructed from mica and being attached to the base substrate. An aggregate area of the base substrate is greater than an aggregate area of the plurality of battery substrates. The electronic device also includes a plurality of active battery layers, each active battery layer being attached to a different respective battery substrate, with each active battery layer having a smaller area than its corresponding battery substrate. A film is disposed over the plurality of active battery layers and sized such that the film extends beyond each active battery layer to contact each battery substrate, and such that the film extends beyond each battery substrate to contact the base substrate.

Abstract: An energy storage apparatus includes: an energy storage device; an insulating adjoining member adjoining the energy storage device in a first direction; a conductive opposite member facing the energy storage device and the adjoining member in a second direction orthogonal to the first direction; an insulating member disposed between the energy storage device and adjoining member and the opposite member; and a conductive fastening member disposed through the insulating member in the second direction to fasten the adjoining member to the opposite member. At least one of the adjoining member and the insulating member includes an opposite projection projecting toward an other of the adjoining member and the insulating member and facing a periphery of the fastening member, and the opposite projection is in contact with the other of the adjoining member and the insulating member.

Abstract: Disclosed is a lithium metal secondary battery which includes: an electrode assembly including a negative electrode, a positive electrode and a separator interposed between the negative electrode and the positive electrode; a non-aqueous electrolyte with which the electrode assembly is impregnated; and a battery casing in which the electrode assembly and the non-aqueous electrolyte are received, wherein the negative electrode includes a negative electrode current collector and a lithium metal layer formed on at least one surface of the negative electrode current collector, the charge/discharge condition of the lithium metal secondary battery includes charging the lithium metal secondary battery under a pressurized state and discharging the lithium metal secondary battery under a non-pressurized or pressurized state, and when the lithium secondary battery is discharged under a pressurized state, the pressure applied during discharge is controlled to be smaller than the pressure applied during charge.

Abstract: The present application discloses a positive electrode plate, a preparation method thereof, and a lithium-ion secondary battery, wherein the positive electrode plate includes a positive electrode current collector and a positive electrode film disposed on at least one surface of the positive electrode current collector, wherein the positive electrode film includes a positive active material which is a lithium manganese-based positive active material; and wherein the volume resistivity ?sum of the positive electrode plate, the powder volume resistivity ? of the positive active material under a pressure of 20 MPa and the mass percentage a of the positive active material in the positive electrode film satisfy ?sum/?97.5-a?3. The positive electrode plate provided in the present application enables the lithium-ion secondary battery to simultaneously have higher safety performance, rate performance and cycle performance.

Abstract: Techniques regarding a thin film battery, which can comprise one or more sealing layers, and a method of manufacturing thereof are provided. For example, one or more embodiments described herein can regard an apparatus that can comprise a thin film battery cell encapsulated in a multi-layer stack comprising an adhesive layer located between a first substrate layer and a second substrate layer. The apparatus can also comprise a metal sealing layer at least partially surrounding the multi-layer stack.

Abstract: Systems, components, and methodologies are provided for electric power storage for electrically-propelled transportation vehicles for operation on roadways. An electric power storage system can include a housing with a compartment that contains a power storage device. The power storage device can include auxiliary terminals having terminal ends electrically connected with electrical power storage cells of the at least one power storage device. The auxiliary terminals can be arranged, apart from the main terminals, for engaging with safety enhancement material delivered to at least partially fill the housing for shorting the terminal ends.

Abstract: A battery pack comprises a plurality of batteries. The protection device is disposed between two adjacent batteries and comprises: a first connecting assembly, a second connecting assembly and a conductive connecting assembly. The protection device has a normal state and an alarm state. When the protection device is in the normal state, the first connecting assembly and the second connecting assembly are spaced apart, and the overload protection circuit is open. When the protection device is in the alarm state, the first connecting assembly is electrically connected with the housing of the first battery, the second connecting assembly is electrically connected with the housing of the second battery, at least one of the first connecting assembly and the second connecting assembly moves to be electrically connected with each other, and the overload protection circuit is closed.

Abstract: Battery housing structures and battery apparatuses including the same are provided. A battery housing structure may include a case including an accommodation region in which a battery unit is accommodated, and an elastic member assembly provided in the case and configured to apply a pressure to the battery unit accommodated in the accommodation region. The elastic member assembly may include at least one first elastic member having an elastic coefficient that increases when a displacement increases and at least one second elastic member having an elastic coefficient that decreases when a displacement increases. The at least one first elastic member and the at least one second elastic member may have different structures or may be arranged in different directions.

Abstract: A clamping device for an electrochemical cell stack is provided. The clamping device can include a first plate and a second plate. The second plate can be positionable relative to the first plate such that a space between the first plate and the second plate can be sized to receive an electrochemical cell stack. The device also can include a coupling member coupling the first plate to the second plate. At least one of the first and second plates can be movable away from the other plate. The coupling member can have a first end portion and a second end portion. The device further can include an elastic member disposed between the first end portion and the second end portion.

Abstract: The present invention relates to a housing for at least one battery module, preferably for an arrangement of battery modules, with the at least one battery module comprising a plurality of battery cells arranged in a fluid cooled frame. The invention further relates to a battery module assembly comprising at least one battery module installed in a housing.

Abstract: A clamping device for an electrochemical cell stack is provided. The clamping device can include a first plate and a second plate. The second plate can be positionable relative to the first plate such that a space between the first plate and the second plate can be sized to receive an electrochemical cell stack. The device also can include a coupling member coupling the first plate to the second plate. At least one of the first and second plates can be movable away from the other plate. The coupling member can have a first end portion and a second end portion. The device further can include an elastic member disposed between the first end portion and the second end portion.

Abstract: A method of manufacturing a wound electrode body by holding a first separator sheet between a pair of electrode sheets formed of a negative sheet and a positive sheet, laminating a second separator sheet in an outside of the pair of electrode sheets, and winding the pair of electrode sheets and the first and second separator sheets onto an outer circumferential surface of a winding core is provided. Before at least one electrode sheet of the pair of electrode sheets is attached to the winding core, a first fold line extended in a longitudinal direction of the one electrode sheet is formed in a leading part of the one electrode sheet.

Abstract: Systems and/or techniques associated with a solid-state microbattery packaging system are provided. In one example, a device comprises a substrate layer and a tape substrate layer. The substrate layer is associated with a set of solid-state microbattery components. The tape substrate comprises a releasable adhesive material and a polymer sealing material. A conductive surface associated with the set of solid-state microbattery components is disposed on the releasable adhesive material of the tape substrate layer.

Abstract: An electrode assembly wound by interposing a separator between a first electrode and a second electrode according to an exemplary embodiment of the present invention is disclosed, wherein the first electrode includes a first coating part coated with an active material and a plurality of first electrode taps that are not coated with the active material and protrude to an outer side of the first coating part, and two first electrode taps per the number of three winding times are formed so as to protrude from the first electrode.

Abstract: The present invention relates to a battery module that includes a probe for detecting expansion of a battery cell. More particularly, the present invention relates to a battery module including: two or more of rechargeable battery cells; a sensing probe provided at an external surface of at least one of the battery cells to sense a local expansion change of the battery cell and transmitting a signal; and a controller receiving the signal from the sensing probe, estimating an internal pressure of the battery cell from the received signal, and generating a warning signal to assure safety of the battery module when the estimated internal pressure exceeds a threshold pressure level.

Abstract: A method and apparatus for detecting and responding to cell swell in one or more cells of a battery includes receiving one or more indications of cell swell from switching circuitry associated with a cell, determining if the battery is fit for purpose based on the one or more indications, and performing an action responsive to the one or more indications and whether the battery is fit for purpose.

Abstract: A fuel cell stack is provided which manually increases the temperature of cells arranged in the vicinity of an end plate of the stack to improve starting performance of a fuel cell vehicle at temperatures below zero and driving performance thereof at low temperatures. The fuel cell stack realizes rapid thawing and heating functions in response to freezing of end cells when a vehicle is started at temperatures below zero, using a multilayer current collector having at least one thin collector plate which is structurally and sensitively expandable or contractible based on temperature changes.

Abstract: A battery system includes a load bearing structure having battery cells, or structures formed by battery cells, and at least one mechanical switch, and an electrical connection coupled with the battery cells of the load bearing structure. A battery has a rate-sensitive component that is configured to deform into a first state to provide a first reaction force under a mechanical loading of a first magnitude. The rate-sensitive component is configured to deform into a second state to provide a second reaction force under a mechanical loading of a second magnitude.

Abstract: A fuel-cell-stack manufacturing method, includes arranging an extension portion extended from a proximal end of a raised piece on one surface of a base material disposed so as to abut at least one of a cathode side separator and the anode side separator, and setting an interval between the anode side separator and the cathode side separator along a lamination direction so that deformation of the raised piece exceeds an elastic deformation region and enters a plastic deformation region, and is also in a region in which the proximal end moved due to the deformation does not come in contact with the cathode side separator or the anode side separator.

Abstract: A safety device for preventing overcharging of a battery includes: a battery stack including a plurality of cells; a safety circuit connected to two or more cells and provided with an electrical conduction control unit that controls electrical conduction; and a closed circuit disposed between the cells connected to the safety circuit and provided with a switching unit which is switched on or off upon cell swelling, such that when cell swelling occurs, the switching unit is switched on by a pressing force, disabling the electrical conduction control unit of the safety circuit so electrical conduction between the cells is established via the switching unit, and when cell swelling occurs again, the switching unit is switched off, cutting off the electrical conduction between the cells.

Abstract: The present invention relates to a safety apparatus and a protection method of a secondary battery, which can prevent explosion and fire of the secondary battery using a switch or a rupture switch attached on the outside of the secondary battery if a swelling degree of the secondary battery reaches a predetermined value when the secondary battery is swelled due to abnormal usage such as overcharge, short-circuit, reverse-connection and heat-exposure of large-capacity lithium polymer battery.

Abstract: Disclosed herein is a battery module including a plurality of unit modules, based on battery cells which can be charged and discharged, electrically connected to each other, wherein the unit modules are electrically connected to each other in series and/or in parallel or the unit modules are electrically connected to a bus bar in series and/or in parallel, the battery module has two or more electrical connection points, and the number of electrically connected members at each of the electrical connection points is less than the total number of the electrically connected members of the battery module.

Abstract: A magnesium cell includes a positive electrode, a negative electrode including a magnesium alloy, and a separator disposed between the positive electrode and the negative electrode to hold an electrolytic solution, in which a contact area between the negative electrode and the separator is variable.

Abstract: A battery module is provided. The battery module includes a plurality of battery cell assemblies configured to electrically communicate with each other. Each battery cell assembly has an electrode stack enclosed by a case. The electrode stack is positioned in the case to form one or more peripheral spaces between the electrode stack and the case. Support members are positioned adjacent to each of the battery cell assemblies to contact a desired portion of the electrode stack. The support members are configured to focus a compressive force on a desired portion of the electrode stack. The compressive force urges gases formed during operation of the electrode stack into the peripheral spaces within the case.

Abstract: A secondary battery, including an electrode assembly having a positive sheet and a negative sheet and a separator is interposed therebetween; a tape to wrap an outer surface of the electrode assembly; and a case to receive the electrode assembly. After a remainder of the tape is formed to extend beyond a lower surface of the electrode assembly and joined by a press, the remainder is positioned between a bottom surface of the case and the lower surface of the electrode assembly. According to the embodiment of the present invention, since a junction portion of the tape extended to the outside of the lower surface of the electrode assembly is bent and inserted into the case, a shock-absorbing action is provided to reduce an external shock applied to the secondary battery. Further, an additional tape process can be omitted to simplify a manufacturing process of the secondary battery.

Abstract: A rechargeable battery including: an electrode assembly that includes a positive electrode, a negative electrode, and a separator interposed therebetween; a case to house the electrode assembly; a cap assembly that is coupled to an opening of the case and electrically connected with the electrode assembly; and an insulating member that is installed between the case and the electrode assembly. The insulating member includes a body disposed on the electrode assembly and a rib that extends from the body and contacts the case.

Abstract: A battery unit is provided which includes an assembled battery module equipped with a plurality of cells, a control board on which a charging/discharging controller is mounted, a storage case in which the assembled battery module, and the control board are disposed, and a swell limiter. The assembled battery module includes a battery body in which the cells are stacked over a bottom plate The swell limiter is located on the opposite side of the assembled battery module than the bottom plate is. The swell limiter is separate from the battery body when any of the cells is not swelling and works to make physical contact with the battery body when any of the cells has swollen to suppress swelling of the cell.

Abstract: A battery assembly for a medical device includes an elongate cathode, an elongate anode, an electrolyte, and an elongate housing assembly encapsulating the cathode, the anode, and the electrolyte. The battery assembly also includes a first electrode exposed from and electrically insulated from the housing assembly. One of the anode and the cathode is electrically coupled to the first electrode, and the other of the anode and the cathode is electrically coupled to the housing assembly. Respective axes of the cathode and the anode are substantially parallel to an axis of the housing assembly, and the cathode and anode each include a flat portion that face each other.

Abstract: A battery case for a secondary battery and a secondary battery using the same. The secondary battery includes an electrode assembly and the battery case. The electrode assembly is composed of a first electrode plate, a second electrode plate and a separator interposed therebetween. The battery case is provided with an accommodating portion that accommodates the electrode assembly. In the secondary battery, the depth of the accommodating portion is approximately 70% to approximately 80% of the thickness of the electrode assembly.

Abstract: A prismatic type secondary battery including an electrode assembly, the electrode assembly including a first electrode, a second electrode, and a separator between the first and second electrodes; a case accommodating the electrode assembly, the case having an open upper end and at least two pairs of surfaces facing each other; a cap assembly sealing the open upper end of the case; and an insulation tube surrounding a lateral periphery of the case and the cap assembly within a region up to a certain height or greater, the insulation tube including at least one elasticity part at a side thereof.

Abstract: An electricity accumulation device includes an electricity accumulation element, an outer jacket material configured to house the electricity accumulation element, and a deformation sensor disposed on an expansive surface of the outer jacket material. The deformation sensor includes a sensor membrane having a base material made of an elastomer or a resin and conductive fillers filling the base material, the sensor membrane being subjected to bending deformation along with expansion of the outer jacket material, and a pair of electrodes connected to the sensor membrane. A three-dimensional conductive path is formed in the sensor membrane through contact between the conductive fillers. An electric resistance is increased along with an increase in amount of deformation of the sensor membrane from a natural state. The electricity accumulation device senses expansion of the outer jacket material on the basis of variations in electric resistance along with bending deformation of the sensor membrane.

Abstract: In one embodiment, an electrochemical cell includes a first electrode, a second electrode spaced apart from the first electrode, the second electrode including at least one first thin-film deposition formed volume change accommodating feature, and a separator positioned between the first electrode and the second electrode.

Abstract: The present application provides a drug-delivery device comprising a drug reservoir chamber 16, containing a substance to be delivered, in fluid connection with a drug administration means 18, and an electrically-controlled battery unit 10 comprising at least one displacement-generating battery cell 19 coupled to the drug reservoir chamber 16 by a coupling means 14, the arrangement being such that the displacement derived from the battery unit 10 is conveyed by the coupling means 14 to the drug reservoir chamber 16 such that the substance is expelled from the drug reservoir chamber 16 towards the drug administration means 18.

Abstract: Provided herein are electrochemical systems and related methods of making and using electrochemical systems. Electrochemical systems of the invention implement novel cell geometries and composite carbon nanomaterials based design strategies useful for achieving enhanced electrical power source performance, particularly high specific energies, useful discharge rate capabilities and good cycle life. Electrochemical systems of the invention are versatile and include secondary lithium ion cells, such as silicon-sulfur lithium ion batteries, useful for a range of important applications including use in portable electronic devices.

Abstract: A square lithium secondary battery includes a wound body in which a collective sheet in which a positive electrode sheet and a negative electrode sheet overlap each other with a first separator interposed therebetween is wound while a second separator is put inside the collective sheet. An active material mixture layer on one or both surfaces of at least one of the positive electrode sheet and the negative electrode sheet includes a region with a plurality of openings and a region with no opening. At least a bent portion of the collective sheet is covered with the region with the plurality of openings.

Abstract: Disclosed is a secondary battery having a element for compensating for and preventing volumetric expansion during charging/discharging of the battery, in order to prevent the electrode assembly from deforming due to rising internal pressure and compensate for and prevent the expansion of the secondary battery case. The secondary battery includes an electrode assembly having positive and negative electrode plates having active materials formed on at least one surface of positive and negative electrode collectors and a separator interposed between the positive and negative electrode plates, a case having a space for containing the electrode assembly and at least one element for compensating for and preventing volumetric expansion, and a cap assembly adapted to be coupled to the case and seal it and provided with a terminal portion in electrical connection to the electrode assembly.

Abstract: In order to enhance charge and discharge efficiency and to improve cycle characteristics by increasing a facing area between a positive electrode active material and a negative electrode active material, in a negative electrode for lithium secondary battery having a current collector and an active material layer carried on the current collector, the active material layer includes a plurality of columnar particles. The columnar particles include an element of silicon, and are tilted toward the normal direction of the current collector. Angle ? formed between the columnar particles and the normal direction of the current collector is preferably 10°??<90°.

Abstract: A method of simultaneously preventing expansion of a battery can and distortion of an electrode winding body is disclosed. A non-aqueous electrolyte wound type secondary battery includes an electrode winding body including a positive electrode sheet, a negative electrode sheet and a separator between the positive electrode sheet and the negative electrode sheet, a support member which is inside the electrode winding body and around which the electrode winding body is wound, and a battery can which contains the electrode winding body and the support member. The positive electrode sheet includes a positive electrode layer and a positive electrode lead part. The negative electrode sheet includes a negative electrode layer and a negative electrode lead part. An inside of a corner of the electrode winding body is supported by the support member. A gap is provided inside the lead part of the electrode winding body and inside the support member.

Abstract: Disclosed is an all solid state battery that includes a cathode layer containing a cathode active material, an anode layer containing an anode active material, and a solid electrolyte layer formed between the cathode layer and the anode layer, wherein the anode layer contains the anode active material such that a carbon-based active material and a metal-based active material are mixed, the metal-based active material is a metal represented by a general formula M or a metal oxide represented by a general formula MxOy (M is a metal) for causing an alloying reaction with Li, a charge and discharge potential of the metal-based active material is nobler than that of the carbon-based active material, and a capacity ratio of the carbon-based active material in the anode layer is higher than that of the metal-based active material.

Abstract: The present invention relates to an electrode assembly, to a method for manufacturing same, and to a battery charging and discharging method. The electrode assembly according to one embodiment of the present invention includes: an electrode collector, wherein a first electrical active material layer is stacked on the electrode collector; and a first porous conductive network layer of which at least one portion is recessed into the first electrical active material layer, wherein the first porous conductive network layer is stacked on the circumferential surface opposite to that of the first electrical active material layer contacting the electrode collector.