WO2022197039A1 - Batterie ayant une structure de renforcement et dispositif électronique la comprenant - Google Patents

Batterie ayant une structure de renforcement et dispositif électronique la comprenant Download PDF

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Publication number
WO2022197039A1
WO2022197039A1 PCT/KR2022/003534 KR2022003534W WO2022197039A1 WO 2022197039 A1 WO2022197039 A1 WO 2022197039A1 KR 2022003534 W KR2022003534 W KR 2022003534W WO 2022197039 A1 WO2022197039 A1 WO 2022197039A1
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WO
WIPO (PCT)
Prior art keywords
reinforcing member
region
sealing
area
facing
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Application number
PCT/KR2022/003534
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English (en)
Korean (ko)
Inventor
이연일
최재만
박종규
정신영
Original Assignee
삼성전자 주식회사
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Application filed by 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Publication of WO2022197039A1 publication Critical patent/WO2022197039A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop

Definitions

  • Various embodiments disclosed in this document relate to a battery having a reinforcing structure and an electronic device including the same.
  • the battery may include a casing made of an aluminum laminate sheet and an electrode assembly, and the electrode assembly may be accommodated in an inner space of the casing.
  • the electrode tabs included in the electrode assembly may be combined with electrode leads supporting an electrical connection with an external component, and the electrode leads are disposed outside the casing. It may extend between the upper sheet and the lower sheet of the exterior material so as to be drawn out to be sealed together with the sheets. Accordingly, the electrode assembly may be locally fixed to a region of the casing in which the electrode leads are sealed, based on the electrode tabs and the electrode leads.
  • a separation space according to an assembly tolerance may occur between the inner space of the exterior material and the electrode assembly accommodated in the inner space.
  • a separation space may be generated between the inner space of the casing and the electrode assembly.
  • the electrode assembly When an external impact is applied to the battery, the electrode assembly may flow in the interior space of the exterior material due to the separation space as described above, and the repeated flow of the electrode assembly may act as a stress to the bonding region between the electrode tabs and the electrode leads. have.
  • Such stress may lead to damage (eg, breakage or deterioration of mechanical strength) of the electrode tabs or electrode leads, and thus a battery stability problem (eg, reduced output, heat generation, ignition, or explosion).
  • Various embodiments disclosed in this document based on at least one reinforcing member that suppresses the flow of an electrode assembly, can relieve stress acting on electrode tabs or electrode leads, and a battery having a reinforcing structure including the same An electronic device may be provided.
  • the battery according to an embodiment includes an electrode assembly including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and ends of the positive electrode, the negative electrode, and the separator each extending in a first direction are formed and a first reinforcing member to be formed, at least one second reinforcing member coupled to at least one region of the first reinforcing member, and a casing including an internal space for accommodating the electrode assembly.
  • a sealing area corresponding to at least a portion of an edge region of the case is at least one area of the at least one second reinforcing member can be overlapped with
  • An electronic device includes a housing including a first surface, a second surface, and a third surface surrounding a space between the first surface and the second surface, a battery disposed inside the housing; and at least one electronic component disposed inside the housing or exposed to the outside through the housing and electrically connected to the battery.
  • the mechanical strength and stability of the battery may be improved by alleviating stress acting on the electrode tabs or the electrode leads based on the at least one reinforcing member that suppresses the flow of the electrode assembly.
  • the stability of the electronic device including the battery having improved mechanical strength and stability may be improved.
  • FIG. 1 is a diagram illustrating a battery according to an embodiment.
  • FIG. 2 is a view illustrating an electrode assembly and a plurality of reinforcing members according to an exemplary embodiment.
  • FIG. 3 is a view illustrating an electrode assembly and a plurality of reinforcing members according to another exemplary embodiment.
  • FIG. 4 is a view illustrating an exterior material according to an embodiment.
  • FIG. 5 is a view illustrating an electrode assembly accommodated in a casing according to an embodiment.
  • FIG. 6 is a view illustrating an electrode assembly accommodated in a casing viewed from one direction according to an exemplary embodiment.
  • FIG. 7 is a view illustrating an electrode assembly accommodated in a casing viewed from one direction according to another embodiment.
  • FIG. 8 is a diagram illustrating a front side of an electronic device according to an exemplary embodiment.
  • FIG. 9 is a view illustrating a rear surface of an electronic device according to an exemplary embodiment.
  • FIG. 10 is a diagram illustrating a deployed state of an electronic device according to an exemplary embodiment.
  • 1 is a diagram illustrating a battery according to an embodiment.
  • 2 is a view illustrating an electrode assembly and a plurality of reinforcing members according to an exemplary embodiment.
  • 3 is a view illustrating an electrode assembly and a plurality of reinforcing members according to another exemplary embodiment.
  • the battery 100 includes an electrode assembly 110 , a plurality of electrode leads (eg, a first electrode (positive electrode) lead 121 and a second electrode (negative electrode)). lead 123 ), a plurality of reinforcing members (eg, the first reinforcing member 125 and at least one second reinforcing member 127a or 127b in FIG. 3 ), and at least one of the exterior material 130 .
  • the battery 100 may omit at least one of the above-described components or may additionally include other components.
  • the battery 100 may further include an electrolyte solution injected into the inner space of the casing 130 to be impregnated with the electrode assembly 110 accommodated in the inner space of the casing 130 .
  • a plurality of positive electrodes 111 and a plurality of negative electrodes 115 are alternately stacked, and between the plurality of positive electrodes 111 and the plurality of negative electrodes 115 . It may include a stack-type structure in which a separator 113 made of an insulating material is interposed therebetween.
  • each of the plurality of positive electrodes 111 may be formed by coating one or both surfaces of a positive electrode current collector with a positive electrode active material (eg, a slurry containing the positive electrode active material is applied and dried).
  • a positive electrode active material eg, a slurry containing the positive electrode active material is applied and dried.
  • the first electrode (positive electrode) tab 117 is coupled to an end region of each of the positive electrode current collectors constituting the plurality of positive electrodes 111 facing the first direction (eg, the +X direction). (eg, welded).
  • each of the plurality of negative electrodes 115 may be formed by coating a negative electrode active material on one or both surfaces of a negative electrode current collector (eg, a slurry containing the negative electrode active material is applied and dried), and the negative electrode current collectors
  • a second electrode (cathode) tab 119 may be coupled (eg, welded) to one end region facing each of the first directions (eg, the +X direction).
  • At least one region of the plurality of first electrode tabs 117 coupled to each of the plurality of positive electrodes 111 may be coupled (eg, welded) to each other in the form of a bundle, the shape of the bundle
  • the region coupled to the first electrode (positive electrode) lead ( 121) may be combined (eg, welded) to form a first electrode (positive electrode) terminal.
  • at least one region of the plurality of second electrode tabs 119 coupled to each of the plurality of negative electrodes 115 may be coupled (eg, welded) to each other in the form of a bundle, and the plurality of second electrode tabs 119 may be coupled to each other in the form of a bundle.
  • the region may be combined (eg, welded) with the second electrode (cathode) lead 123 made of a conductive material that supports electrical connection with the external component to form a second electrode (cathode) terminal.
  • the electrode assembly 110 may include a first reinforcing member 125 .
  • the electrode assembly 110 may have an end of each of the plurality of positive electrodes 111 , the plurality of separators 113 , and the plurality of negative electrodes 115 facing the first direction (eg, the +X direction). It may include a first reinforcing member 125 formed by extending one region.
  • the first reinforcing member 125 includes a plurality of positive electrode reinforcing members and a plurality of separators formed by extending one region of an end of each of the plurality of positive electrodes 111 in the first direction (eg, the +X direction).
  • a plurality of separator reinforcement members formed by extending one region of an end of each of the first directions (eg, +X direction), and a plurality of negative electrodes 115 , respectively, in a first direction (eg, +X direction) ) may include a combination of a plurality of negative electrode reinforcement members formed by extending one region of the end.
  • the first reinforcing member 125 includes one positive electrode reinforcing member formed by extending one region of an end of one positive electrode 111 in the first direction (eg, in the +X direction), the one positive electrode ( 111), one separator reinforcing member formed by extending one region of an end of one separator 113 in the first direction (eg, in the +X direction), and one negative electrode in contact with the one separator 113 ( 115) may include a combination of one negative reinforcing member formed by extending one region of an end in the first direction (eg, the +X direction).
  • the positive electrode reinforcing member and the negative reinforcing member may have the same shape as each other.
  • the positive electrode reinforcing member may be formed in a shape including a first portion and a second portion extending at different lengths from one region of an end of the positive electrode 111 in the first direction (eg, the +X direction),
  • the negative electrode reinforcing member may have a shape symmetrical to that of the positive electrode reinforcing member including the first and second portions.
  • the positive electrode reinforcing member and the separator are reinforced
  • the member and the negative reinforcing member may be aligned side by side without protruding portions to form the first reinforcing member 125 .
  • each of the positive electrode reinforcing member, the separator reinforcing member, and the negative electrode reinforcing member may be disposed between a first direction (eg, a +X direction) and a third direction (eg, a -X direction) opposite to the first direction.
  • the length may be the same or similar, and a fourth direction (eg, +Y direction) perpendicular to the same plane as the first direction (eg, +X direction) and a fifth direction (eg, the fourth direction) opposite to the fourth direction : -Y direction) may have the same or similar second lengths.
  • a fourth direction eg, +Y direction
  • a fifth direction eg, the fourth direction opposite to the fourth direction : -Y direction
  • the first reinforcing member 125 may be formed between the plurality of first electrode tabs 117 and the plurality of second electrode tabs 119 .
  • the plurality of first electrodes One region of the second length corresponding to between the tabs 117 and the plurality of second electrode tabs 119 may extend to the first length to form a first reinforcing member 125 .
  • a first length between the first direction (eg, the +X direction) and the third direction (eg, the -X direction) of the first reinforcing member 125 is a plurality of positive electrodes 111 . and a plurality of first electrode tabs 117 and a plurality of second electrode tabs 119 coupled (eg, welded) to each of the plurality of negative electrodes 115 in the first direction (eg, +X direction) and the second direction It may be equal to, longer than, or shorter than the third length between the three directions (eg, the -X direction).
  • a second length between the fourth direction (eg, the +Y direction) and the fifth direction (eg, the -Y direction) of the first reinforcing member 125 may be a length of the plurality of first electrode tabs.
  • the fourth length between the 117 and the plurality of second electrode tabs 119 in the fourth direction (eg, the +Y direction) and the fifth direction (eg, the -Y direction) may be similar to or shorter than the fourth length.
  • the battery 100 may include at least one second reinforcing member 127a coupled (eg, welded) to the first reinforcing member 125 of the electrode assembly 110 .
  • the at least one second reinforcing member 127a has a region oriented in a third direction (eg, -X direction) to a first surface (eg, second direction) of the first reinforcing member 125 .
  • the first reinforcing member 125 may be coupled (eg, welded), and the other region facing the first direction (eg, the +X direction) may extend to a specified length.
  • the specified length is to be accommodated in the inner space of the exterior material 130 to be described later by the electrode assembly 110 in a state in which the first reinforcing member 125 and the at least one second reinforcing member 127a are coupled.
  • the other region of the at least one second reinforcing member 127a in the first direction overlaps the edge of the exterior material 130 , but is not drawn out of the exterior material 130 . It can be determined by the length of the inner.
  • a region of the at least one second reinforcing member 127a facing the third direction includes at least partially a metal material (eg, at least one of aluminum and nickel). can do.
  • the other region of the at least one second reinforcing member 127a facing the first direction may at least partially include an insulating material (eg, plastic).
  • the at least one second reinforcing member 127a has a space for engaging at least a portion of the first reinforcing member 125 in a region oriented in the third direction (eg, -X direction).
  • the third direction eg, -X direction
  • one region facing the third direction eg, -X direction
  • a region of the at least one second reinforcing member 127a oriented in a third direction is first folded in the first direction (eg, +X direction) and then A second folded shape may be included in a direction (eg, a -X direction).
  • the first reinforcing member 125 is in a space formed in an area in the third direction (eg, -X direction) of the at least one second reinforcing member 127a by the first folding and the second folding. ) may be nested in at least a part of it. At least a portion of a third surface (eg, a surface facing the second direction (-Z direction) of one region facing the third direction (-X direction)) of the at least one second reinforcing member 127a constituting the space is the The second surface (eg, the upper surface facing the sixth direction (+Z direction)) of the first reinforcing member 125 inserted into the space may come into contact with at least a portion and may be coupled (eg, welded).
  • a third surface eg, a surface facing the second direction (-Z direction) of one region facing the third direction (-X direction)
  • the second surface (eg, the upper surface facing the sixth direction (+Z direction)) of the first reinforcing member 125 inserted into the space
  • At least a portion of a fourth surface (eg, a surface facing the sixth direction (+Z direction) of one region facing the third direction (-X direction)) of the at least one second reinforcing member 127a constituting the space may be combined (eg, welded) in contact with at least a portion of the first surface (eg, the bottom surface facing the second direction (-Z direction)) of the first reinforcing member 125 inserted into the space.
  • the shape of the at least one second reinforcing member 127a and the coupling method between the at least one second reinforcing member 127a and the first reinforcing member 125 are not limited to the above-described examples.
  • the shape of the at least one second reinforcing member 127a and the at least one second reinforcing member A coupling method between the 127a and the first reinforcing member 125 may be variously modified.
  • an end region of each of the plurality of positive electrodes 111 , the plurality of separators 113 , and the plurality of negative electrodes 115 is extended in a first direction (eg, a +X direction).
  • a first reinforcing member 125 is formed, and at least one second reinforcing member 127a is fixed to the first reinforcing member 125 (eg, coupled by welding), the first reinforcing member ( 125 may also be referred to as a fixed end of the electrode assembly 110 .
  • the second reinforcing member 127b may be formed in a cap shape capable of accommodating at least a portion of the first reinforcing member 125 .
  • the second reinforcing member 127b may be formed in a cap shape including an internal space in which one region (eg, one region facing the third direction (-X direction)) is open, and the open one At least a portion of the first reinforcing member 125 may be accommodated in the inner space through the region.
  • the entire volume of the first reinforcing member 125 is accommodated in the internal space of the second reinforcing member 127b, or a volume of a specified ratio to the total volume of the first reinforcing member 125 is accommodated.
  • the second reinforcing member 127b accommodates a specified proportion of the volume of the first reinforcing member 125
  • one surface of the second reinforcing member 127b facing the second direction eg, -Z direction
  • a first portion of one surface in the second direction (eg, -Z direction) that does not correspond to the inner space of the second reinforcing member 127b corresponds to the inner space.
  • the second direction (eg, -Z direction) may be formed in a lower stage than the second portion of the surface.
  • the second reinforcing member 127b may at least partially include an insulating material (eg, polypropylene) having a non-stretch property.
  • the electrode assembly 110 in which the first reinforcing member 125 and the at least one second reinforcing member 127a or 127b are coupled is the interior of the casing 130 .
  • the exterior material 130 may be formed by laminating a plurality of insulating films (eg, a polypropylene film or a nylon film) and a plurality of metal sheets (eg, an aluminum sheet), and the upper exterior material 131 ) and a lower exterior material 133 .
  • the upper casing 131 and the lower casing 133 are formed to have a shape corresponding to each other and are sealed to match at least a portion of each edge region, thereby accommodating the electrode assembly 110 .
  • An inner space of the exterior material 130 may be formed.
  • the electrode assembly 110 in which the first reinforcing member 125 and the at least one second reinforcing member 127a or 127b are coupled is accommodated in the inner space of the casing 130 , the The at least one second reinforcing member 127a or 127b may not be drawn out or exposed to the outside of the exterior member 130 .
  • FIG. 4 is a view illustrating an exterior material according to an embodiment.
  • 5 is a view illustrating an electrode assembly accommodated in a casing according to an embodiment.
  • 6 is a view illustrating an electrode assembly accommodated in a casing viewed from one direction according to an exemplary embodiment.
  • the one direction may be referred to as a second direction (eg, -Z direction) shown in FIG. 5 .
  • At least one of the components of the battery shown in FIGS. 4, 5, or 6 may be the same or similar to the components described with reference to FIGS. 1, 2, or 3, and hereinafter the same or similar A duplicate description of the components may be omitted.
  • the upper casing 131 and the lower casing 133 may form the casing 130 by sealing at least a portion of each edge region.
  • the upper casing 131 and the lower casing 133 may be provided in a form in which edge regions facing a third direction (eg, -X direction) are combined.
  • the lower exterior material 133 may include a first sealing area 10a facing a first direction (eg, +X direction), a second sealing area 20a facing a fifth direction (eg -Y direction), and It may include a third sealing area 30a facing the fourth direction (eg, the +Y direction).
  • the upper exterior material 131 includes a fourth sealing area 10b corresponding to the first sealing area 10a, a fifth sealing area 20b corresponding to the second sealing area 20a, and the third sealing area 10b.
  • a sixth sealing area 30b corresponding to the sealing area 30a may be included.
  • the upper casing 131 and the lower casing 133 may be provided in an independent form that is not coupled.
  • the lower exterior material 133 may further include a seventh sealing area oriented in a third direction (eg, -X direction) in addition to the above-described sealing areas, and the upper exterior material 131 may include, in addition to the sealing areas, in addition to the sealing areas.
  • An eighth sealing area corresponding to the seventh sealing area of the lower exterior member 133 may be further included.
  • corresponding sealing regions of the upper casing 131 and the lower casing 133 may be sealed by a thermosetting process or a photocuring process, and correspondingly, the inner space of the casing 130 is sealed from the outside. (135) may be formed.
  • the electrode assembly 110 may be accommodated in the inner space 135 of the casing 130 .
  • the first electrode lead 121 and the second electrode lead 123 are provided in the plurality of first electrode tabs 117 and the plurality of second electrode tabs 119 , respectively.
  • the electrode assembly 110 in which at least one second reinforcing member 127a is coupled to the first reinforcing member 125 may be accommodated.
  • At least one second reinforcement coupled to the first reinforcement member 125 of the electrode assembly 110 when the electrode assembly 110 is accommodated in the inner space 135 of the casing 130 , at least one second reinforcement coupled to the first reinforcement member 125 of the electrode assembly 110 .
  • One region of the member 127a may be interposed between the upper casing 131 and the lower casing 133 .
  • a region of the at least one second reinforcing member 127a extending to a specified length in the first direction (eg, the +X direction) eg, a region that does not engage the first reinforcing member 125 ) may be interposed between the first sealing area 10a of the lower casing 133 and the fourth sealing area 10b of the upper casing 131 .
  • a region of the at least one second reinforcing member 127a oriented in a first direction may include the first sealing region 10a and the fourth sealing region 10b, respectively.
  • a length less than a specified ratio with respect to the length between the first direction (eg, the +X direction) and the third direction (eg, the -X direction) of the first sealing region 10a and the fourth sealing region 10b Each can be nested.
  • an end of the one region that faces the first direction (eg, the +X direction) of the at least one second reinforcing member 127a may have a first sealing region 10a and a fourth sealing region 10b, respectively. It overlaps, but may not reach (or contact) an end of each of the first sealing region 10a and the second sealing region 10b in the first direction (eg, the +X direction).
  • one region in the first direction (eg, the +X direction) of the at least one second reinforcing member 127a interposed between the first sealing region 10a and the fourth sealing region 10b may include: It may be sealed together with the first sealing region 10a and the fourth sealing region 10b by a curing process or a photocuring process. According to various embodiments, before the sealing process between the first sealing area 10a and the fourth sealing area 10b, the second reinforcing member 127a overlapping the first sealing area 10a is formed.
  • the fifth side (eg, the side facing the second direction (-Z direction)) of the one region facing the 1 direction (eg, the +X direction) is the first side based on the adhesive member (eg, an adhesive film or an adhesive tape) It may be adhered to the sealing region 10a.
  • the adhesive member eg, an adhesive film or an adhesive tape
  • the electrode assembly 110 when the electrode assembly 110 is accommodated in the inner space 135 of the exterior material 130 , the electrode assembly 110 is coupled to the first reinforcing member 125 of the electrode assembly 110 .
  • One area of the cap-shaped second reinforcing member 127b (which accommodates at least a portion of the first reinforcing member 125 ) includes the first sealing area 10a of the lower casing 133 and the upper casing 131 . may be interposed between the fourth sealing regions 10b of the In an embodiment, a region of the second reinforcing member 127b having the cap shape in the first direction (eg, in the +X direction) may be formed in a region of the first sealing region 10a and the fourth sealing region 10b, respectively.
  • the end of the one region that faces the first direction (eg, the +X direction) of the second reinforcing member 127b having a cap shape may include the first sealing region 10a and the fourth sealing region 10b, respectively. It overlaps, but may not reach (or contact) an end of each of the first sealing region 10a and the second sealing region 10b in the first direction (eg, the +X direction).
  • one region in the first direction (eg, the +X direction) of the cap-shaped second reinforcing member 127B interposed between the first sealing region 10a and the fourth sealing region 10b is It may be sealed together with the first sealing region 10a and the fourth sealing region 10b by a curing process or a photocuring process.
  • the second reinforcing member 127a or 127b when the space between the upper casing 131 and the lower casing 133 is sealed, the second reinforcing member 127a or 127b is the casing 130 ) may not be withdrawn or exposed to the outside.
  • the electrode assembly 110 may receive a fixing force in the inner space 135 of the exterior material 130, and external impact flow can be suppressed.
  • FIG. 7 is a view illustrating an electrode assembly accommodated in a casing viewed from one direction according to another embodiment.
  • At least one of the components of the battery shown in FIG. 7 may be the same as or similar to the components described with reference to FIGS. 1, 2, 3, 4, 5, or 6, and hereinafter the same Alternatively, overlapping descriptions of similar components may be omitted.
  • the electrode assembly 110 may include a plurality of first reinforcing members.
  • the plurality of first reinforcing members may have ends facing each of the plurality of positive electrodes 111 , the plurality of separators 113 , and the plurality of negative electrodes 115 in the first direction (eg, the +X direction).
  • it may include a reinforcing member 125c formed by extending one region of an end portion facing the -Y direction.
  • At least one second reinforcing member 127a (or a cap-shaped second reinforcing member (127b in FIG. 3 )) is coupled to each of the plurality of first reinforcing members 125a, 125b, and 125c.
  • One region of at least one second reinforcing member 127a or 127b coupled to each of the plurality of first reinforcing members 125a, 125b, and 125c is interposed between the upper casing 131 and the lower casing 133, , may overlap the upper exterior material 131 and the lower exterior material 133 .
  • one area of the at least one second reinforcing member 127a or 127b coupled to the reinforcing member 125a facing the first direction is a first sealing area of the lower casing 133 . It may overlap the fourth sealing area 10b of the 10a and the upper casing 131 to be sealed together with the first sealing area 10a and the fourth sealing area 10b.
  • one region of the at least one second reinforcing member 127a or 127b coupled with the reinforcing member 125b facing the fourth direction (eg, the +Y direction) may be a third sealing member of the lower exterior member 133 .
  • one region of the at least one second reinforcing member 127a or 127b coupled to the reinforcing member 125c facing the fifth direction may be the second portion of the lower exterior member 133 . It may overlap the sealing area 20a and the fifth sealing area 20b of the upper exterior material 131 to be sealed together with the second sealing area 20a and the fifth sealing area 20b.
  • At least one second reinforcing member 127a or 127b coupled to each of the plurality of first reinforcing members 125a, 125b, and 125c may be formed between the upper casing 131 and the lower casing 133. It may not be drawn out or exposed to the outside of the exterior material 130 formed by sealing.
  • an electronic device including a battery eg, the battery 100 of FIGS. 1 and 5
  • a battery eg, the battery 100 of FIGS. 1 and 5
  • FIGS. 8 , 9 , and 10 an electronic device including a battery according to various embodiments described above may be exemplified with reference to FIGS. 8 , 9 , and 10 .
  • FIG 8 is a diagram illustrating a front side of an electronic device according to an exemplary embodiment.
  • 9 is a view illustrating a rear surface of an electronic device according to an exemplary embodiment.
  • the electronic device 800 has a first surface 810A (or a front surface) oriented in the +Z direction, and a first surface 810A (or front surface) oriented in the -Z direction opposite to the +Z direction.
  • 2 surface 810B (or rear surface), and the first surface 810A facing at least one of a +X direction, a -X direction, a +Y direction, and a -Y direction perpendicular to the +Z direction or the -Z direction ) and a third surface 810C (or a side surface) surrounding the space between the second surface 810B may include a housing.
  • the housing may refer to a structure forming a portion of the first surface 810A, the second surface 810B, and the third surface 810C.
  • the first surface 810A may be formed by a front plate 802 (eg, a glass plate or a polymer plate including various coating layers) at least a portion of which is substantially transparent.
  • the front plate 802 is curved and extends seamlessly from the first side 810A toward the back plate 811 forming the second side 810B, at least at a side edge portion. It may include a curved portion that becomes
  • the second surface 810B may be formed by a substantially opaque back plate 811 .
  • the back plate 811 may include, for example, coated or tinted glass, ceramic, polymer, metal (eg, aluminum, stainless steel, or magnesium), or a combination of at least two of the foregoing.
  • the back plate 811 may include, at at least one end, a curved portion that extends seamlessly from the second side 810B toward the front plate 802 forming the first side 810A. .
  • the third surface 810C may be formed by a side member 818 (or a bracket) coupled to the front plate 802 and the rear plate 811 .
  • the side member 818 may include at least one of a metal and a polymer.
  • the back plate 811 and the side member 818 may be integrally formed and may include the same material (eg, a metal material such as aluminum).
  • the electronic device 800 includes a display 801 , an audio module 803 , at least one camera module 805 , 812 , 813 , 814 , and 815 ), a flash 806 , and a key. It may include at least one of an input device 817 and a connector hole 808 . In various embodiments, the electronic device 800 may not include at least one of the above-described components (eg, the key input device 817 ) or may additionally include other components.
  • the electronic device 800 may further include a sensor module, and the sensor module may include at least one of an optical sensor, an ultrasonic sensor, and a capacitive sensor.
  • the sensor module is located on at least one of a lower portion of a screen display area of the display 801 (eg, an area of the display 801 viewed through the front plate 802 ) and a peripheral area of the display 801 . can be placed.
  • the electronic device 800 may further include a light emitting device, and the light emitting device may be disposed adjacent to the display 801 in an area provided by the front plate 802 .
  • the light emitting device may provide, for example, state information of the electronic device 800 in the form of light.
  • the light emitting device may provide a light source that is interlocked with the operation of the first camera module 805 .
  • the light emitting device may include at least one of an LED, an IR LED, and a xenon lamp.
  • the display 801 can be seen from the outside of the electronic device 800 through a significant portion of the front plate 802 .
  • the edge of the display 801 may be substantially identical to an outer shape (eg, a curved surface) of the adjacent front plate 802 .
  • the distance between the outer periphery of the display 801 and the outer periphery of the front plate 802 may be substantially the same.
  • a recess, a notch, or an opening may be formed in a portion of the screen display area of the display 801 , and the electronic device 800 may display the recess, the notch, or An electronic component aligned with the opening may include, for example, a first camera module 805 , a proximity sensor, or an illuminance sensor.
  • the electronic device 800 includes at least one camera module (at least one of 805, 812, 813, 814, and 815) disposed below the screen display area of the display 801, a fingerprint sensor, and a flash ( 806) may be included.
  • the display 801 is disposed adjacent to or coupled to at least one of a touch sensing circuit, a pressure sensor capable of measuring the intensity of a touch (eg, pressure), and a digitizer detecting a magnetic field type stylus pen. can be
  • the audio module 803 may include at least one of a microphone hole and a speaker hole.
  • a microphone for acquiring an external sound may be disposed inside the microphone hole, and, for example, a plurality of microphones may be disposed to sense the direction of the sound.
  • the microphone hole and the speaker hole may be implemented as one hole (eg, the audio module 803 ), or a speaker (eg, a piezo speaker) may be included in the electronic device 800 without the speaker hole.
  • the speaker hole may include at least one of an external speaker hole and a receiver hole for a call.
  • the electronic device 800 may generate an electrical signal or data value corresponding to an internal operating state or an external environmental state using a sensor module (not shown).
  • the sensor module may include, for example, at least one of a proximity sensor disposed on the first surface 810A of the housing and a biometric sensor (eg, a heart rate monitoring (HRM) sensor) disposed on the second surface 810B of the housing. may include.
  • HRM heart rate monitoring
  • the sensor module may further include at least one of a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a temperature sensor, and a humidity sensor have.
  • a first camera module 805 of the one or more camera modules 805 , 812 , 813 , 814 , and 815 may be disposed on the first surface 810A of the electronic device 800
  • the second At least one of the camera modules 812 , 813 , 814 , and 815 ) and the flash 806 may be disposed on the second surface 810B of the electronic device 800
  • the at least one camera module (at least one of 805, 812, 813, 814, and 815) may include, for example, at least one of one or a plurality of lenses, an image sensor, and an image signal processor.
  • the plurality of lenses eg, a wide-angle lens and a telephoto lens
  • an image sensor may be disposed on one surface of the electronic device 800 .
  • the flash 806 may include, for example, a light emitting diode or a xenon lamp.
  • the key input device 817 may be disposed on the third surface 810C of the housing.
  • the electronic device 800 may not include some or all of the key input devices 817 , and the non-included key input devices 817 may be displayed on the display 801 such as soft keys. It can be implemented in the form
  • the key input device 817 may include at least a portion of a fingerprint sensor disposed on the second surface 810B of the housing.
  • the connector hole 808 may accommodate at least one of a connector for transmitting/receiving at least one of power and data with an external electronic device and a connector for transmitting/receiving an audio signal with the external electronic device.
  • the connector hole 808 may accommodate, for example, at least one of a USB connector and an earphone jack.
  • the electronic device 800 may transmit/receive at least one of power and data or transmit/receive an audio signal to/from an external electronic device without the connector hole 808 .
  • FIG. 10 is a diagram illustrating a deployed state of an electronic device according to an exemplary embodiment.
  • an electronic device 1000 (eg, the electronic device 800 of FIGS. 8 and 9 ) according to an embodiment includes a front plate (eg, the front plate 802 of FIG. 8 ) and a display 1010 . ) (eg, display 801 of FIG. 8 ), side member 1020 (eg, side member 818 of FIGS. 8 and 9 ), at least one printed circuit board 1030 , first support structure 1040 ) ) (eg, a shield can), a second support structure 1050 , a battery 1060 (eg, the battery 100 of FIGS. 1 and 5 ), and a back plate 1070 (eg, FIG. 9 ) of at least one of the rear plate 811).
  • At least one of the components of the electronic device 1000 illustrated in FIG. 10 may be the same as or similar to the components described with reference to FIGS. 8 and 9 , and repeated descriptions below may be omitted.
  • the side member 1020 may include at least one of the metal frame structure 1021 and the support member 1022 .
  • the metal frame structure 1021 may be formed of a conductive material (eg, metal) to form a side surface (eg, the third surface 810C of FIG. 8 ) of the electronic device 1000 .
  • the metal frame structure 1021 may include, for example, at least one conductive portion and at least one non-conductive portion insulating the at least one conductive portion.
  • the at least one conductive portion may function as an antenna radiator for transmitting and receiving RF signals of a specified frequency band.
  • the support member 1022 may include at least one of a metallic material and a non-metallic material (eg, a polymer) to provide a space for electronic components to be disposed in the electronic device 1000 .
  • the display 1010 may be disposed on one surface of the support member 1022 (eg, one surface facing the +Z direction), and the other surface of the support member 1022 (eg, the -Z direction).
  • At least one printed circuit board 1030 may be disposed on one side facing the
  • the support member 1022 may be connected to the metal frame structure 1021 or may be integrally formed with the metal frame structure 1021 .
  • a plurality of electronic components may be disposed on the at least one printed circuit board 1030 .
  • a processor, a memory, and an interface may be disposed on the at least one printed circuit board 1030 .
  • the processor may include, for example, at least one of a central processing unit, an application processor, a graphic processing unit, an image signal processor, a sensor hub processor, and a communication processor.
  • the memory may include, for example, at least one of a volatile memory and a non-volatile memory.
  • the interface may include, for example, at least one of a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and an audio interface.
  • the interface may electrically or physically connect the electronic device 1000 to an external electronic device, and may include at least one of a USB connector, an SD card, an MMC connector, and an audio connector.
  • the at least one printed circuit board 1030 may include at least one of the first printed circuit board 1031 and the second printed circuit board 1032 .
  • the first printed circuit board 1031 may be disposed in one area (eg, one area facing the +Y direction) of the support member 1022
  • the second printed circuit board 1032 may be 1 It may be disposed in another area (eg, one area facing the -Y direction) of the support member 1022 spaced apart from the printed circuit board 1031 .
  • the first printed circuit board 1031 and the second printed circuit board 1032 may be electrically connected through an electrical connection member 1033 .
  • the electrical connection member 1033 may include, for example, at least one of a flexible printed circuit board, a coaxial cable, and a B to B (board to board) connector.
  • the structure of the at least one printed circuit board 1030 is not limited to the illustrated example, and in various embodiments, the at least one printed circuit board 1030 may be implemented as one printed circuit board.
  • the first support structure 1040 (eg, a shield can) is formed to include a conductive material (eg, metal), and may be disposed on at least one printed circuit board 1030 .
  • a patch antenna may be disposed in at least one region (eg, one region oriented in the -Z direction) of the first support structure 1040 , and the first support structure 1040 is the A patch antenna can be supported.
  • the patch antenna may function, for example, as an antenna radiator for transmitting and receiving an ultra-wide band RF signal.
  • the first support structure 1040 may shield a plurality of electronic components disposed on the at least one printed circuit board 1030 .
  • the first support structure 1040 may surround or cover the plurality of electronic components to block noise generated from the plurality of electronic components.
  • the second support structure 1050 may be formed of a material different from that of the first support structure 1040 .
  • the second support structure 1050 may be formed of a non-conductive material (eg, plastic), but is not limited thereto.
  • the second support structure 1050 is disposed on one area of the at least one printed circuit board 1030 , so that a plurality of electronic components disposed on the at least one printed circuit board 1030 are protected from external impact. damage can be prevented.
  • the second support structure 1050 is disposed so as not to overlap the first support structure 1040 when viewed from an upper portion of the at least one printed circuit board 1030 (eg, an upper portion oriented in the -Z direction). can be In another embodiment, the second support structure 1050 may be disposed to overlap at least a portion of the first support structure 1040 .
  • the battery 1060 may supply power to at least one component of the electronic device 1000 and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. can In an embodiment, at least a portion of the battery 1060 may be disposed substantially on the same plane as the at least one printed circuit board 1030 . In various embodiments, the battery 1060 may be integrally disposed inside the electronic device 1000 or may be disposed detachably from the electronic device 1000 .
  • the rear plate 1070 may form the rear surface (eg, the second surface 810B of FIG. 9 ) of the electronic device 1000 .
  • the back plate 1070 may protect, for example, internal components of the electronic device 1000 from external impact or foreign matter inflow.
  • the battery according to the various embodiments described above includes an electrode assembly including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and ends of the positive electrode, the negative electrode, and the separator each extending in a first direction and a casing including a first reinforcing member formed by being formed by the first reinforcing member, at least one second reinforcing member coupled to at least one region of the first reinforcing member, and an internal space for accommodating the electrode assembly.
  • a sealing area corresponding to at least a portion of an edge region of the case is at least one area of the at least one second reinforcing member.
  • a region oriented in a second direction opposite to the first direction engages a portion of an upper surface and a portion of a lower surface of the first reinforcing member, and 1 may be combined with a reinforcing member.
  • one region facing the second direction is first folded toward the first direction and then is second folded toward the second direction. and a space formed therein, and may be coupled to the first reinforcing member by engaging a portion of an upper surface and a portion of a lower surface of the first reinforcing member through the space.
  • the exterior material is formed in a shape corresponding to the upper exterior material and the upper exterior material including the first sealing area in at least a part of the edge area, and is sealed with the first sealing area in at least a part of the edge area. It may include a lower exterior material including a second sealing area for the.
  • a region of the at least one second reinforcing member facing the first direction may be interposed between the first sealing region and the second sealing region.
  • a region facing the first direction may be opposite to the first direction and the first direction of the first sealing region and the second sealing region, respectively. In a length less than a specified ratio with respect to the length between the second directions, it may overlap each of the first sealing area and the second sealing area.
  • an end of one region facing the first direction overlaps an end of each of the first sealing region and the second sealing region facing the first direction it may not be
  • one region facing the first direction is based on a thermosetting process or a photocuring process, together with the first sealing region and the second sealing region. can be sealed.
  • one area facing the first direction may be sealed together with the first sealing area and the second sealing area so as not to be exposed to the outside of the exterior material. have.
  • a region facing the first direction at least partially includes an insulating material, and a region facing the second direction at least partially includes a metal material can do.
  • the at least one second reinforcing member includes a cap shape including an inner space in which a region facing a second direction opposite to the first direction is opened, and the open region Through this, at least a portion of the first reinforcing member may be accommodated in the inner space to be coupled to the first reinforcing member.
  • the at least one second reinforcing member may at least partially include an insulating material having a non-stretch property.
  • the first reinforcing member may include a reinforcing member in which ends of each of the positive electrode, the negative electrode, and the separator extending in the first direction extend, the positive electrode, the negative electrode, and each of the separator
  • the at least one second reinforcing member may include at least one of a reinforcing member corresponding to the first direction, a reinforcing member corresponding to the third direction, and a reinforcing member corresponding to the fourth direction, respectively. It can be combined with a realm.
  • the electronic device includes a housing including a first surface, a second surface, and a third surface surrounding a space between the first surface and the second surface, the housing being disposed inside the housing It may include a battery and at least one electronic component disposed inside the housing or exposed to the outside through the housing and electrically connected to the battery.
  • the battery includes an electrode assembly including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and ends of the positive electrode, the negative electrode, and the separator each extending in a first direction and a casing including a first reinforcing member formed by being formed by the first reinforcing member, at least one second reinforcing member coupled to at least one region of the first reinforcing member, and an internal space for accommodating the electrode assembly.
  • a sealing area corresponding to at least a portion of an edge region of the case is at least one area of the at least one second reinforcing member.
  • a region oriented in a second direction opposite to the first direction engages a portion of an upper surface and a portion of a lower surface of the first reinforcing member, and 1 may be combined with a reinforcing member.
  • one region facing the second direction is first folded toward the first direction and then is second folded toward the second direction. and a space formed therein, and may be coupled to the first reinforcing member by engaging a portion of an upper surface and a portion of a lower surface of the first reinforcing member through the space.
  • the exterior material is formed in a shape corresponding to the upper exterior material and the upper exterior material including the first sealing area in at least a part of the edge area, and is sealed with the first sealing area in at least a part of the edge area. It may include a lower exterior material including a second sealing area for the.
  • a region of the at least one second reinforcing member facing the first direction may be interposed between the first sealing region and the second sealing region.
  • a region facing the first direction may be opposite to the first direction and the first direction of the first sealing region and the second sealing region, respectively. In a length less than a specified ratio with respect to the length between the second directions, it may overlap each of the first sealing area and the second sealing area.
  • an end of one region facing the first direction overlaps an end of each of the first sealing region and the second sealing region facing the first direction it may not be
  • one region facing the first direction is based on a thermosetting process or a photocuring process, together with the first sealing region and the second sealing region. can be sealed.
  • one area facing the first direction may be sealed together with the first sealing area and the second sealing area so as not to be exposed to the outside of the exterior material. have.
  • the electronic device may be a device of various types.
  • the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device.
  • a portable communication device eg, a smart phone
  • a computer device e.g., a laptop, a desktop, a tablet, or a portable multimedia device
  • portable medical device e.g., a portable medical device
  • camera e.g., a camera
  • a wearable device e.g., a smart watch
  • a home appliance device e.g., a smart bracelet
  • first”, “second”, or “first” or “second” may simply be used to distinguish the component from other such components, and refer to those components in other aspects (e.g., importance or order) is not limited.
  • “coupled” or “connected” to one (eg, first) component to another (eg, second) component with or without the terms “functionally” or “communicatively” When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.
  • module may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit.
  • a module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • one or more instructions stored in a storage medium may be implemented as software (eg, the program 140) including
  • the processor eg, the processor 120
  • the device eg, the electronic device 101
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • the device-readable storage medium may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.
  • a signal eg, electromagnetic wave
  • the method according to various embodiments disclosed in this document may be provided by being included in a computer program product.
  • Computer program products may be traded between sellers and buyers as commodities.
  • the computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly or online between smartphones (eg smartphones).
  • a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a memory of a relay server.
  • each component eg, a module or a program of the above-described components may include a singular or a plurality of entities.
  • one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg, a module or a program
  • the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, omitted, or , or one or more other operations may be added.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un dispositif électronique comprenant : un boîtier ; une batterie disposée à l'intérieur du boîtier ; et au moins un composant électronique disposé à l'intérieur du boîtier ou exposé à l'extérieur à travers le boîtier et connecté électriquement à la batterie, la batterie comprenant : un ensemble électrode comprenant une cathode, une anode et un séparateur disposé entre la cathode et l'anode ; un premier élément de renforcement dans lequel une extrémité de chacun de la cathode, de l'anode et du séparateur dans une première direction est étendue ; au moins un second élément de renforcement couplé à au moins une région du premier élément de renforcement ; et un carter comprenant un espace interne pour recevoir l'ensemble électrode, le carter étant configuré de telle sorte qu'une zone d'étanchéité correspondant à au moins une partie d'une région de bord du carter chevauche au moins une zone dudit au moins un second élément de renforcement dans un état dans lequel l'ensemble électrode est reçu dans l'espace interne.
PCT/KR2022/003534 2021-03-15 2022-03-14 Batterie ayant une structure de renforcement et dispositif électronique la comprenant WO2022197039A1 (fr)

Applications Claiming Priority (2)

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KR1020210033521A KR20220128848A (ko) 2021-03-15 2021-03-15 보강 구조의 배터리 및 이를 포함하는 전자 장치
KR10-2021-0033521 2021-03-15

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WO2022197039A1 true WO2022197039A1 (fr) 2022-09-22

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WO (1) WO2022197039A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130051556A (ko) * 2011-11-10 2013-05-21 에스케이이노베이션 주식회사 파우치형 이차전지
KR20160131266A (ko) * 2015-05-06 2016-11-16 삼성전자주식회사 이차전지용 셀 구조체 및 이를 포함하는 이차전지
WO2017047473A1 (fr) * 2015-09-15 2017-03-23 Ｎｅｃエナジーデバイス株式会社 Batterie
KR20180050893A (ko) * 2016-11-07 2018-05-16 삼성에스디아이 주식회사 이차 전지
KR20190131345A (ko) * 2018-05-16 2019-11-26 삼성전자주식회사 무지부의 적어도 일부에 노치가 형성된 배터리를 포함하는 전자 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130051556A (ko) * 2011-11-10 2013-05-21 에스케이이노베이션 주식회사 파우치형 이차전지
KR20160131266A (ko) * 2015-05-06 2016-11-16 삼성전자주식회사 이차전지용 셀 구조체 및 이를 포함하는 이차전지
WO2017047473A1 (fr) * 2015-09-15 2017-03-23 Ｎｅｃエナジーデバイス株式会社 Batterie
KR20180050893A (ko) * 2016-11-07 2018-05-16 삼성에스디아이 주식회사 이차 전지
KR20190131345A (ko) * 2018-05-16 2019-11-26 삼성전자주식회사 무지부의 적어도 일부에 노치가 형성된 배터리를 포함하는 전자 장치

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