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KR-20260066583-A - BATTERY AND ELECTRONIC DEVICE INCLUDING THE SAME

KR20260066583AKR 20260066583 AKR20260066583 AKR 20260066583AKR-20260066583-A

Abstract

A battery is disclosed. The battery may include an electrode and a lead tab electrically connected to the electrode. The electrode may include an active material layer, a first current collector, and a second current collector. The first current collector may include a first portion disposed to overlap the active material layer on at least one surface of the first current collector, and a second portion protruding from the first portion of the first current collector without overlapping the active material layer. The second current collector may include a portion overlapping the second portion of the first current collector and another portion not overlapping the second portion of the first current collector. The lead tab may be electrically connected to the electrode through being coupled to the other portion of the second current collector. The first distance from the first part of the first current collector to the position where the lead tab is coupled to the other part of the second current collector may be shorter than the second distance from the first part of the first current collector to the position where the second part of the first current collector is coupled to the part of the second current collector.

Inventors

  • 박타리
  • 김시현
  • 서영호
  • 서정욱
  • 전용섭
  • 추정호

Assignees

  • 삼성전자주식회사

Dates

Publication Date
20260512
Application Date
20241212
Priority Date
20241104

Claims (20)

  1. In the battery (300), Electrodes (311, 312), and It includes lead tabs (331, 332) electrically connected to the electrodes (311, 312), and The above electrodes (311, 312) are, Active material layer (413, 453), The first entire house (411, 451), and Includes the second collector (420, 460), The above first collector (411, 451) is, A first portion (435, 475) disposed to overlap the active material layer (413, 453) on at least one surface of the first current collector (411, 451), and It includes a second portion (431, 471) that protrudes from the first portion (435, 475) of the first current collector (411, 451) without overlapping with the active material layer (413, 453), The above second collector (420, 460) is, A portion overlapping with the second portion (431, 471) of the first current collector (411, 451), and It includes another part that does not overlap with the second part (431, 471) of the first current collector (411, 451), and The lead tabs (331, 332) are electrically connected to the electrode (312) through being coupled to the other part of the second current collector (420, 460), and The first distance (525) from the first part (435, 475) of the first current collector (411, 451) to the position (530) where the lead tab (331, 332) is coupled to the other part of the second current collector (420, 460) is shorter than the second distance (520) from the first part (435, 475) of the first current collector (411, 451) to the position where the second part (431, 471) of the first current collector (411, 451) is coupled to the part of the second current collector (420, 460). battery.
  2. In claim 1, The above second collector (460) is, A first part (461) covering the first surface of the first collector (451), and It includes a second part (465) covering a second surface opposite to the first surface of the first collector (451), and The first part (461) is coupled to the second part (465) at the portion where the second part (431, 471) and the second part (465) of the first collector (451) overlap each other. battery.
  3. In claim 2, The position where the lead tab (332) is coupled to the other area of the second current collector (420, 460) is distinguished from the position where the first part (461) is coupled to the second part (465). battery.
  4. In claim 2, The above active material layer (453) is disposed on one of the first surface and the second surface, battery.
  5. In claim 2, The above active material layer is, A first active material layer (453) disposed on the first surface, and A second active material layer (455) disposed on the second surface, battery.
  6. In claim 1, The first current collector (451) above has a non-conductive layer and a conductive layer, The above active material layer (453) is disposed on the conductive layer, battery.
  7. In claim 6, The non-conductive layer of the first current collector (451) comprises a polyethylene layer. battery.
  8. In claim 6, The second current collector (460) and the conductive layer above comprise aluminum, battery.
  9. In claim 1, The above first collector (411, 451) is, It includes a third part (545) that is not overlapped with the active material layer (453), protrudes from the first part (435, 475) of the first current collector (451), and is spaced apart from the second part (541) of the first current collector (451). The second current collector (420, 460) is combined with the second and third parts (541, 545), and The lead tab (332) is electrically coupled to the electrode (312) in a concave portion defined by the first, second, and third portions (475, 541, 545). battery.
  10. In claim 1, Another electrode (311) having a different polarity from the above electrode (312), and It includes a separator (350) that electrically separates the electrode (312) and the other electrode (311), and The electrode (312), the separator (350), and the other electrode (311) are sequentially stacked in the thickness direction of the battery (300). battery.
  11. In claim 1, Another electrode (311) having a different polarity from the above electrode (312), and It includes a separator (350) that electrically separates the above electrode (312) and the other electrode (311), and The electrode (312), the separator (350), and the other electrode (311) are wound clockwise. battery.
  12. In the electronic device (101), Battery (300), and It includes an electronic component driven by power from the battery (300), The above battery (300) is, Electrodes (311, 312), and It includes lead tabs (331, 332) electrically connected to the electrodes (311, 312), and The above electrodes (311, 312) are, Active material layer (413, 453), The first entire house (411, 451), and Includes the second collector (420, 460), The above first collector (411, 451) is, A first portion (435, 475) disposed to overlap the active material layer (413, 453) on at least one surface of the first current collector (411, 451), and It includes a second portion (431, 471) that protrudes from the first portion (435, 475) of the first current collector (411, 451) without overlapping with the active material layer (413, 453), The above second collector (420, 460) is, A portion overlapping with the second portion (431, 471) of the first current collector (411, 451), and It includes another part that does not overlap with the second part (431, 471) of the first current collector (411, 451), and The lead tabs (331, 332) are electrically connected to the electrode (312) through being coupled to the other part of the second current collector (420, 460), and The first distance (525) from the first part (435, 475) of the first current collector (411, 451) to the position (530) where the lead tab (331, 332) is coupled to the other part of the second current collector (420, 460) is shorter than the second distance (520) from the first part (435, 475) of the first current collector (411, 451) to the position where the second part (431, 471) of the first current collector (411, 451) is coupled to the part of the second current collector (420, 460). Electronic device.
  13. In claim 12, The above second collector (460) is, A first part (461) covering the first surface of the first collector (451), and It includes a second part (465) covering a second surface opposite to the first surface of the first collector (451), and The first part (461) is coupled to the second part (465) at the portion where the second part (431, 471) and the second part (465) of the first collector (451) overlap each other. Electronic device.
  14. In claim 13, The position where the lead tab (332) is coupled to the other area of the second current collector (420, 460) is distinguished from the position where the first part (461) is coupled to the second part (465). Electronic device.
  15. In claim 13, The above active material layer (453) is disposed on one of the first surface and the second surface, Electronic device.
  16. In claim 13, The above active material layer is, A first active material layer (453) disposed on the first surface, and A second active material layer (453) disposed on the second surface, Electronic device.
  17. In claim 12, The first current collector (451) above has a non-conductive layer and a conductive layer, The above active material layer (453) is disposed on the conductive layer, Electronic device.
  18. In claim 12, The above first collector (411, 451) is, It includes a third part (545) that is not overlapped with the active material layer (453), protrudes from the first part (435, 475) of the first current collector (451), and is spaced apart from the second part (541) of the first current collector (451). The second current collector (420, 460) is combined with the second and third parts (541, 545), and The lead tab (332) is electrically coupled to the electrode (312) in a concave portion defined by the first, second, and third portions (475, 541, 545). Electronic device.
  19. In claim 12, Another electrode (311) having a different polarity from the above electrode (312), and It includes a separator (350) that electrically separates the electrode (312) and the other electrode (311), and The electrode (312), the separator (350), and the other electrode (311) are sequentially stacked in the thickness direction of the battery (300). Electronic device.
  20. In claim 12, Another electrode (311) having a different polarity from the above electrode (312), and It includes a separator (350) that electrically separates the above electrode (312) and the other electrode (311), and The electrode (312), the separator (350), and the other electrode (311) are wound clockwise. Electronic device.

Description

Battery and electronic device including the same The following descriptions relate to batteries and electronic devices containing them. The electronic device may include various electronic components. The electronic device may include a battery for providing power to the electronic components. The battery may include a positive electrode, a negative electrode, and a separator disposed between them. An electrode tab extending from the electrode may be coupled to a lead tab. Power provided from the battery may be provided to the outside of the battery through the lead tab. FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments. FIG. 2 is a block diagram of a power management module and a battery according to one embodiment. FIG. 3a is a perspective view of a battery according to one embodiment. FIG. 3b is a cross-sectional view of the battery of FIG. 3a cut along A-A'. Fig. 3c is an exploded perspective view of the battery of Fig. 3a. FIG. 4a is a cross-sectional view of the electrode of the battery in FIG. 3c cut along E-E'. FIG. 4b is a cross-sectional view of the electrode of the battery in FIG. 3c cut along D-D'. FIG. 4c is a cross-sectional view of the electrode of the battery in FIG. 3c cut along C-C'. FIG. 4d is a cross-sectional view of the electrode of FIG. 3c cut along B-B'. FIG. 5a is a top view of the positive electrode of a battery of an electronic device according to one embodiment. FIG. 5b is a top view of the positive electrode of a battery of an electronic device according to one embodiment. FIG. 5c is a top view of the positive electrode of a battery of an electronic device according to one embodiment. FIG. 5d is a top view of the positive electrode of a battery of an electronic device according to one embodiment. FIG. 6 is a flowchart illustrating a process of combining the electrode and lead tab of a battery of an electronic device according to one embodiment. FIG. 7a is a drawing illustrating an electrode current collector according to one embodiment. FIG. 7b is a drawing illustrating an electrode current collector coated with a positive active material according to one embodiment. FIG. 7c is a drawing illustrating an electrode current collector with a portion of the unused area removed, according to one embodiment. FIG. 7d is a drawing illustrating an example in which an additional current collector is positioned on top of an electrode current collector to be coupled to a non-transparent area, according to one embodiment. FIG. 7e is a drawing illustrating an example in which an additional current collector is positioned on an electrode current collector so that the additional current collector is coupled to a non-transparent area, according to one embodiment. FIG. 7f is a drawing illustrating an example in which an additional current collector and a non-current area are welded so that the additional current collector is joined to the non-current area according to one embodiment. FIG. 7g is a drawing illustrating an example in which an electrode tab and an additional current collector are welded so that the electrode tab is coupled to the additional current collector according to one embodiment. FIG. 8 is a drawing illustrating an electrode according to one embodiment. FIG. 9a is a drawing illustrating a jelly roll according to one embodiment. FIG. 9b is a drawing illustrating a cylindrical battery according to one embodiment. FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to various embodiments. Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or with at least one of an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)). The processor (120) can control at least one other component (e.g., a hardware or software component) of the ele