1292results about "Jackets/cases materials" patented technology

A secondary battery includes: an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a can accommodating the electrode assembly, a lower end of the can being open and being electrical connected to the second electrode plate; a first current collector plate between a top surface of the electrode assembly and the can and electrically connected to the first electrode plate; and a terminal part passing through a top surface of the can, a lower end of the terminal part being electrically and mechanically coupled to a top surface of the first current collector plate. A terminal liquid injection hole, through which an electrolyte is injected, extends through the terminal part.

A cylindrical secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a case accommodating the electrode assembly and having a lower end that is open and electrically coupled to the second electrode plate; a first current collector plate between a top surface of the electrode assembly and the case and that is electrically connected to the first electrode plate; a terminal passing through a top surface of the case and including a lower end electrically and mechanically coupled to a top surface of the first current collector plate; and a cap plate configured to seal the lower end of the case. The terminal includes a lower terminal including a welding groove having a depth from a top surface of the terminal in a downward direction; and an upper terminal in the welding groove of the lower terminal.

A battery cell includes an electrode assembly, a case, an end cover assembly, and a current collecting component. The electrode assembly includes a first tab. The case is used for accommodating the electrode assembly, and the case has an opening. The end cover assembly covers the opening and is provided with an electrode lead-out portion. The current collecting component includes a tab connecting region and an end cover connecting region. The tab connecting region is used for connecting to the first tab. The end cover connecting region is welded to the inner side of the electrode lead-out portion and forms a first welded portion. The penetration depth of the first welded portion formed on the electrode lead-out portion is smaller than or equal to the thickness of the electrode lead-out portion.

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises a shell assembly and an electrode assembly, and the shell assembly comprises a shell and a first electrode terminal arranged on the shell; the electrode assembly is accommodated in the shell and comprises a first pole piece and a second pole piece, each of the first pole piece and the second pole piece comprises a coating part and a tab, the coating part comprises an active material layer, the tab is not provided with the active material layer, one of the first pole piece and the second pole piece is a positive pole piece, and the other one is a negative pole piece; the active material layer in the positive pole piece comprises a positive active material, and the positive active material comprises lithium-containing phosphate with an olivine structure; the tab in the first pole piece is used for electrically connecting the first electrode terminal and the coating part in the first pole piece, and the area of the projection plane of the first electrode terminal along the thickness direction of the first electrode terminal is 300mm < 2 >-500mm < 2 >. According to the invention, the cycle performance and the use reliability of the battery monomer under a fast charge condition can be effectively improved.

The system for deicing black ice includes a plurality of laser scanners that are arranged at intervals along a road, each laser scanner including a light source unit, a non-contact temperature sensor, and a control unit that controls an operation of radiating the laser to the area in charge, a weather sensor that measures a temperature and humidity, and an integrated controller that communicates with the plurality of laser scanners. The integrated controller determines whether the laser is radiated to the road surface based on at least one of the measured temperature and humidity, and when the laser radiation is determined, generates a control signal to activate at least one laser scanner, and the control unit determines a heating area, and generates a pulse signal to turn on / off a light source unit so that the laser is radiated in accordance with a shape and range of the heating area.

A battery cell, a battery, and an electric device. The battery cell includes a housing assembly, an electrode assembly, and a current collecting member. The housing assembly includes an electrode lead-out portion for inputting or outputting electric energy. The electrode assembly is accommodated in the housing assembly, where the electrode assembly includes a body and a tab, the tab is disposed on the body, and a material of the tab is different from that of the electrode lead-out portion. The current collecting member includes an additional portion having a same material as that of the electrode lead-out portion and a body portion having a same material as that of the tab, the additional portion is connected to the body portion, the additional portion is connected to the electrode lead-out portion through welding, and the body portion is connected to the tab through welding.

The utility model relates to the technical field of batteries, in particular to a top cover assembly, a battery monomer and a battery assembly. The top cover assembly comprises an insulating sheet, a top cover sheet, a negative electrode assembly and a positive electrode assembly, the insulating sheet comprises a first through hole and a second through hole, the top cover sheet comprises a negative electrode part corresponding to the first through hole, a positive electrode part corresponding to the second through hole and a remaining main body part, and the negative electrode assembly is installed on the negative electrode part; the positive electrode part comprises at least one convex part which protrudes towards the direction far away from the insulating sheet relative to the main body part, and the convex part forms the positive electrode assembly; the end surface of one end, far away from the insulating sheet, of the convex part is flush with the end surface of one end, far away from the insulating sheet, of the negative electrode assembly; and the outer convex part and the main body part are integrally formed. The outer convex part formed by stamping the top cover plate is used as the positive electrode, and a sealing ring, a positive electrode terminal, positive electrode upper plastic and other parts in a conventional structure are omitted, so that the cost is greatly reduced.

The electrochemical device includes: a case including a recessed container having a bottom and a side wall, and a cap covering the opening of the recessed container; a power generation element including a laminate having an electrode layer, an electrode layer and a solid electrolyte layer laminated together and contained in the interior space of the case such that the bottom and electrode layer face each other; and a conductive plate located adjacent to the opening of the recessed container and positioned between the electrode layer and cap. The recessed container includes insertion holes with openings in the upper end surface of the side wall. The conductive plate includes elastic locking portions located on edges thereof and corresponding in position to the insertion holes. With each elastic locking portion inserted in an insertion hole, the tip portion of the elastic locking portion presses a side surface of the insertion hole.

The utility model provides a button cell. The button cell comprises a first shell, a second shell, a diaphragm and a second pole piece, the first shell comprises a conducting layer and an insulating layer, a first mounting groove is formed in the middle of the first shell, and the surface of the conducting layer is coated with an active material layer within the range of the first mounting groove; a second mounting groove is formed in the middle of the second shell; the edges of the first shell and the second shell are hermetically connected to form a mounting cavity, at least parts of the first tab and the second tab are exposed out of the mounting cavity, and the diaphragm and the second pole piece are arranged in the mounting cavity. The active material layer is arranged on the surface of the conductive layer of the first shell, so that the problems of non-uniform thickness of the pole piece and falling of the active material layer caused by rolling of the active material layer coated on the pole piece are avoided, the problem of large gram capacity fluctuation is avoided, the gram capacity is more stable, and the battery performance is effectively improved.

An energy storage device, such as a lithium-ion battery, without tabs connecting the electrode jelly roll to the can, and a method for making the same, is described. A series of flags may be cut, bent, and interleaved with one another to form connection points for upper and lower collector plates within the can. The upper and lower collector plates can be welded directly to the interleaved flags to form connection points for the anode and cathode in the energy storage device.

The riveting structure of an electrode terminal for a battery includes a battery housing having a bottom; an electrode terminal riveted through a hole formed in the bottom of the battery housing; and a gasket between the electrode terminal and the battery housing. Also, the electrode terminal includes a body portion inserted into the hole; an outer flange portion extending along an outer surface of the bottom of the battery housing from a first side of the body portion exposed through the outer surface; an inner flange portion extending toward an inner surface of the bottom of the battery housing from a second side of the body portion exposed through the inner surface; and a flat portion on the second side of the body portion.

A cylindrical secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a case accommodating the electrode assembly and electrically connected to the second electrode plate; a terminal electrically connected to the first electrode plate and coupled to the case via a first gasket; a cap plate configured to seal an upper end portion of the case, a second gasket between the case and the cap plate; a first current collector between a lower surface of the electrode assembly and the terminal; and a second current collector between an upper surface of the electrode assembly and the cap plate and at one side of an edge region thereof between the case and the second gasket. An electrically conductive connection induction portion is on at least one of the cap plate or the second current collector.

Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.

An electrode assembly having a first electrode, a second electrode, and a separator positioned between the first electrode and the second electrode. The first electrode, the second electrode, and the separator are together wound about an axis in a winding direction resulting in a plurality of winding turns. Each of the first electrode and the second electrode has a first side and a second side opposite the first side in the direction of the axis, as well as a first, electrode active material portion, coated with an electrode active material, extending from the second side in the direction of the first side, and a second, uncoated portion extending from the first side in the direction of the second side to the active material of the first portion. Additionally, the first side of the first electrode and the first side of the second electrode are divided into a plurality of segments by a cut groove, and each of the segments has a first end corresponding to the first side of either the first or the second electrode. One or more of the segments are bent in a radial direction relative to the axis, at a point below the first end of each bent segment, and the separator has a side that is positioned between the bending point of each bent segment and a boundary between the first and the second portions.

The invention provides a cylindrical battery, which comprises a shell pole column, a first electrode, a second electrode, a third electrode and a fourth electrode, the battery cell is arranged in the shell, a first tab part and a second tab part are led out from the battery cell, the polarity of the first tab part is opposite to that of the second tab part, the first tab part is connected with the shell so that the shell can form a first current output end, the second tab part is connected with the pole in a welded mode, and a welding mark is formed on the second tab part; the pole forms a second current output end; the insulation structure comprises an insulation layer and an adhesive layer arranged on the insulation layer, the insulation structure forms a non-bonding area in an area outside the adhesive layer, at least part of the adhesive layer is bonded on the circumferential surface of the battery cell, and the non-bonding area extends to the surface of the second tab part. According to the scheme, the overlapping size between the non-bonding area and the second tab part, the bonding size of the adhesive layer on the battery cell and the size between the non-bonding area and the welding mark are optimized, and the heat dissipation effect of the second tab part and the warping and falling risk of the non-bonding area can be considered.

An electrode assembly, a battery, and a battery pack and a vehicle including the same are provided. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes a first portion coated with an active material and a second portion at a first side and adjacent the first portion, the second portion being exposed beyond the separator along a first axial direction of the electrode assembly. A part of the second portion is bent in a radial direction of the electrode assembly forming a first surface region including stacked layers of the second portion, and in a partial region of the first surface region, a number of the stacked layers of the second portion is 10 or more in the in the first axial direction.

The invention relates to the technical field of new energy, and discloses a battery and a battery pack, the battery comprises: a shell, the shell contains a Ti element, and the mass of the Ti element accounts for more than or equal to 60% of the total mass of the shell; the pole column is arranged on the shell; the battery cell comprises a battery cell body and tabs, the tabs comprise a positive tab and a negative tab, one of the positive tab and the negative tab is electrically connected with the pole, and the other one of the positive tab and the negative tab is electrically connected with the shell; the ratio of the mass of the Ti element of the shell to the total mass of the shell is a, the conductivity of the shell is b, and the lead-out size of the tab from the cell body is c; a. C / b is greater than or equal to 99 and less than or equal to 3650. According to the battery provided by the invention, the relationship among a, b and c is comprehensively controlled, so that the light weight of the shell is realized, the over-current capability of the battery can be met, the battery is prevented from generating relatively large temperature rise, and the condition that the safety performance of the battery is poor is prevented.

A method of activating a battery cell and a method of manufacturing a battery cell including the same, and more particularly, to a battery cell activation method capable of easily discharging gas trapped between a separator and an electrode inside an electrode assembly of a battery cell, and preventing discharge of a large amount of electrolyte solution during a gas discharging process, and a method of manufacturing a battery cell including the same.

This disclosure relates to systems for hydrogen sulfide mitigation. A battery cell or plurality of battery cells in a battery pack with a solid electrolyte sandwiched between an anode and a cathode are presented. A coating is applied to an interior surface of the sulfur-containing lithium-based rechargeable battery cell. The coating is configured to precipitate hydrogen sulfide gas responsive to moisture ingress in the cathode and exude sulfur dioxide and water external to the sulfur-containing lithium-based rechargeable battery cell.

The utility model relates to a battery shell, a single battery and a battery pack. The battery shell comprises a top side cover plate and a battery cell shell used for assembling a positive terminal, and the top side cover plate is welded to a top shell opening formed in the top of the battery cell shell; the top side cover plate is in a flat plate shape, the top shell opening of the battery cell shell is provided with a first step section which is formed by circumferentially expanding outwards and bending, and the top side cover plate abuts against and is welded with the first step section. According to the invention, different from the existing assembly structure of the shell and the top cover plate, the positive terminal is specifically assembled on the battery cell shell instead of the top side cover plate; meanwhile, the top side cover plate is of a flat-plate-shaped structure, it means that the manufacturing process of the top side cover plate is relatively simple, complex molds and machining equipment are not needed, in the production process, the forming speed of the top side cover plate is high, the quality is easy to control, the rejection rate in the production process can be reduced, and the production cost is reduced.

The present invention discloses a battery having a structure in which a protective member is applied between an electrode assembly and a beading portion. A battery according to an aspect of the present invention includes an electrode assembly, a battery housing including a beading portion formed with an opening portion on one side and accommodating the electrode assembly through the opening portion, and formed by press-fitting an outer peripheral edge from the side of the opening portion, a top cap covering the opening portion, and a first protective member interposed between the beading portion and the electrode assembly.

A surface-treated steel sheet including: a steel sheet; and a nickel-cobalt-iron diffusion layer formed on the steel sheet as an outermost layer. When the intensities for Ni, Co and Fe are consecutively measured from a surface of the nickel-cobalt-iron diffusion layer in the depth direction by radio frequency glow discharge optical emission spectrometry, and the concentration of Ni, Co and Fe at each of depth positions are determined based on the intensities for Ni, Co, and Fe, a Co concentration gradient ΔPCo ranging from a depth position DCo_MAX to a depth position DCo_15% is 33% by mass / 0.1 μm or less. A depth position at which the concentration of Co is maximum is defined as DCo_MAX and a depth position located closer to the steel sheet than the depth position DCo_MAX and at which the concentration of Co is 15% of the maximum value is defined as DCo_15%.

An exterior material to be used for a battery comprises at least one pattern part formed in a transverse direction (TD) of the exterior material, wherein the TD of the exterior material is a width direction of a battery including the exterior material, and a machine direction (MD) of the exterior material is a longitudinal direction of the battery including the exterior material.

Battery, characterized in that it comprises: a cylindrical jelly roll comprising an electrode, a separator, and a tab, the electrode comprising a positive electrode and a negative electrode stacked on top of each other, the tab comprising a positive tab and a negative tab, the positive electrode provided with the positive tab extending outwardly from a side edge of the positive electrode, wherein the negative electrode provided with the negative tab extends outwardly from a side edge of the negative electrode, and wherein the separator is provided between the positive electrode and the negative electrode; wherein, in a state where the cylindrical jelly roll is unfolded, the width direction of the electrode is a first direction, the length direction of the electrode is a second direction, and the electrode is provided with a plurality of tabs at intervals along the length direction on one side in the first direction, a gap is formed between two adjacent tabs extending along the first direction, the gap is provided to be open at an end remote from the electrode, a distance between the end of the gap near the electrode and the electrode is h1 mm, the side of the separator near the tab extends beyond the electrode in the first direction, the distance between the side of the separator near the tab and the side of the electrode provided with the tab is h2 mm, where h1 > h2.

Discussed is a battery that may include an electrode assembly including a first electrode, a second electrode and a separator wound around a winding axis, wherein the first electrode includes a first active material region coated with a first active material layer and a first uncoated region not coated with the first active material layer, and at least a part of the first uncoated region being an electrode tab; a first current collector coupled to at least a part of the first uncoated region on the electrode assembly; a battery housing to accommodate the electrode assembly and the first current collector; and an insulator interposed between at least one of the first uncoated region and the first current collector and an inner surface of the battery housing facing the at least one of the first uncoated region and the first current collector to block an electrical connection between the battery housing and the at least one of the first uncoated region and the first current collector.

Discussed is a battery pack to which a folding structure is applied and a manufacturing method thereof, and more particularly, to a battery pack in which battery cells are connected in series using a connection plate in an unfolded state, then wrapped and fixed with individual housings, and a folding structure is applied to form a cell stack structure of the battery cells by folding the connection plate connecting the battery cells in that state and a manufacturing method thereof.

According to an aspect of the present invention, there is provided a cell assembly comprising: a cell; a cell enclosure configured to hold the cell; and one or more sensors for monitoring characteristics of the cell to determine a safety value of the cell; wherein one of the one or more sensors comprises a printed sensor for monitoring at least one of strain or temperature associated with the cell, wherein the printed sensor has been applied to the cell and is configured to sense the difference in at least one of strain or temperature between the cell when charged and the cell when discharged to identify the safety value.

To provide a battery module with excellent impact resistance, provide a battery module that uses an elastic material such as rubber for an exterior that covers a battery, and provide a bendable battery module.SOLUTION: An elastic material such as rubber is used as an exterior body that covers a battery, and the exterior body is molded in two steps. First, a first mold is used to mold a first portion with a recess in which the battery is housed. Next, the battery is inserted into the first portion. Next, a second mold is used to perform a second molding step to fill the opening of the recess in the first portion, forming a second portion. The second portion functions as a lid that closes the opening of the recess in the first portion. The second portion is formed so as to contact a part of the battery's electrodes and a part of the edge of the second exterior body of the battery.SELECTED DRAWING: Figure 1

A method for manufacturing a pouch-type secondary battery according to an embodiment of the present invention may include: a first sealing operation of fusing a lead film, which is attached to an electrode lead of an electrode assembly, to a sealing portion of a pouch in which the electrode assembly is accommodated; and a second sealing operation of sealing the sealing portion of the pouch. The first sealing operation may include: a heating process of irradiating with a laser beam a region which is present in the sealing portion of the pouch and corresponds to the lead film, thereby heating the lead film and melting a resin layer of the region; and a bonding process of compressing the region, thereby bonding the lead film and the melted resin layer.

This disclosure relates to hydrogen sulfide mitigation systems. A battery cell or a plurality of battery cells in a battery pack having a solid electrolyte disposed between an anode and a cathode is presented. A coating is applied to an interior surface of the sulfur-containing lithium-based rechargeable battery cell. The coating is configured to precipitate hydrogen sulfide gas in response to moisture ingress into the cathode and to expel sulfur dioxide and water outside the sulfur-containing lithium-based rechargeable battery cell.