# US 2019/0355994 A1 · Electronic device including battery with notch formed in at least a portion of uncoated part of the battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0355994 A1 - Document ID: US20190355994A1 - Status: Published application - Kind: A1 - Application number: 16/414,209 - Filed: 2019-05-16 - Published: 2019-11-21 - Earliest claimed: 2018-05-16 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Yeonil LEE - Web page: https://patentgrep.com/patent/US20190355994A1 ## CPC - H01M 4/78: Shapes other than plane or cylindrical, e.g. helical - G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]} - G06F 1/1658: {related to the mounting of internal components, e.g. disc drive or any other functional module} - G06F 1/183: Internal mounting support structures, e.g. for supporting printed circuit boards - H01M 10/0431: {Cells with wound or folded electrodes (H01M10/045 takes precedence)} - H01M 50/461: {with adhesive layers between electrodes and separators} - H04M 1/0262: {for a battery compartment} - H04M 1/0264: {for a camera module assembly} - H01M 4/13: Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof - H01M 2004/021: {Physical characteristics, e.g. porosity, surface area} - H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract Disclosed is a battery mounted in an electronic device and having a notch structure patterned on an uncoated part, thereby reinforcing the bond between the partitioning films of the battery and providing a structure robust to external stress and enhanced for stabilized battery performance. ## Claims ### Claim 1 A battery, comprising: a negative electrode sheet including a negative electrode part coated with a negative electrode active material and a first uncoated part disposed adjacent to the negative electrode part; a positive electrode sheet facing the negative electrode sheet and including a positive electrode part coated with a positive electrode active material and a second uncoated part disposed adjacent to the positive electrode part; and at least one partitioning film disposed on a surface of the negative electrode sheet or a surface of the positive electrode sheet, wherein the positive electrode sheet, the negative electrode sheet, and the partitioning film include a roll shape formed by wrapping, and wherein at least a portion of the first uncoated part of the negative electrode sheet or the second uncoated part of the positive electrode sheet includes at least one internally recessed notch structure. ### Claim 2 (depends on 1) The battery of claim 1, wherein the first uncoated part and the second uncoated part are disposed in a parallel direction with respect to a wrapping direction of the battery, and wherein a first notch structure formed in the first uncoated part is disposed in at least a portion of an upper end or lower end of the first uncoated part. ### Claim 3 (depends on 2) The battery of claim 2, wherein the at least one partitioning film includes a first partitioning film and a second partitioning film, the first partitioning film being disposed on a first surface of the negative electrode sheet and including an adhesive material, and the second partitioning film being disposed between a second surface of the negative electrode sheet and the positive electrode sheet and including the adhesive material, and wherein a first area of the first partitioning film and a second area of the second partitioning film corresponding to the first notch structure are attached to each other by the adhesive material. ### Claim 4 (depends on 3) The battery of claim 3, wherein a wrapping structure formed by the positive electrode sheet, the negative electrode sheet, and the partitioning films is formed in a jelly roll type manner, and wherein the first notch structure includes a designated pattern along an outermost surface of the negative electrode sheet. ### Claim 5 (depends on 1) The battery of claim 1, wherein the notch structure formed in the first uncoated part or the second uncoated part includes a cutting line portion, and wherein at least a portion of the cutting line portion is formed along a direction perpendicular to a lengthwise direction of the battery. ### Claim 6 (depends on 5) The battery of claim 5, wherein the cutting line portion of the notch structure includes a bend or an inclination towards an end of the first uncoated part or the second uncoated part. ### Claim 7 (depends on 5) The battery of claim 5, wherein the cutting line portion of the notch structure includes a first length formed in a lengthwise direction of the negative electrode sheet and a second length extending from the first length to an upper end or lower end of the negative electrode sheet, and wherein the second length corresponds to 1% to 30% of a width of the first uncoated part. ### Claim 8 (depends on 3) The battery of claim 3, wherein the first partitioning film and the second partitioning film have sizes corresponding to each other and being larger than a size of the negative electrode sheet. ### Claim 9 (depends on 3) The battery of claim 3, is wherein the negative electrode sheet includes a first-first uncoated part including a protruding negative electrode tab and a first-second uncoated part including the first notch structure and spaced apart from the first-first uncoated part, the negative electrode part being disposed between the first-first uncoated part and the first-second uncoated part, and wherein the first notch structure includes a shape by which at least a portion of an edge of the first-second uncoated part is cut and patterned. ### Claim 10 (depends on 9) The battery of claim 9, wherein the first notch structure includes a first-first notch structure formed in an upper edge of the first-second uncoated part and a first-second notch structure formed in a lower edge of the first-second uncoated part. ### Claim 11 (depends on 3) The battery of claim 3, wherein the positive electrode sheet includes a second-first uncoated part including a protruding positive electrode tab and a second-second uncoated part including a second notch structure and spaced apart from the second-first uncoated part, the positive electrode part being disposed between the second-first uncoated part and the second-second uncoated part, and wherein the second notch structure includes a shape by which at least a portion of an edge of the second-second uncoated part is cut and patterned. ### Claim 12 (depends on 11) The battery of claim 11, wherein the second notch structure includes a second-first notch structure formed in an upper edge of the second-second uncoated part and a second-second notch structure formed in a lower edge of the second-second uncoated part. ### Claim 13 (depends on 3) The battery of claim 3, wherein the positive electrode sheet, the second partitioning film, the negative electrode sheet, and the first partitioning film form a stacked electrode assembly by which the positive electrode sheet is exposed at an outermost edge of the battery, and wherein at least one attaching member is disposed on a stack surface of the electrode assembly. ### Claim 14 (depends on 13) The battery of claim 13, wherein the at least one attaching member includes a first attaching member formed to wrap at least a portion of an upper end of the stack surface of the battery and a second attaching member formed to wrap at least a portion of a lower end of the stack surface of the battery. ### Claim 15 (depends on 13) The battery of claim 13, further comprising a pouch in which the electrode assembly is received and is sealed off from an outside of the battery. ### Claim 16 An electronic device including a battery, the electronic device comprising: a housing including a front plate facing in a first direction, a rear plate facing in a second direction opposite to the first direction, and a bracket formed to surround a space between the front plate and the rear plate; a display device configured to externally display information through at least a is portion of the front plate; and the battery mounted in a seating hole prepared in at least a portion of a first surface facing in the first direction of the bracket, wherein the battery includes: a negative electrode sheet including a negative electrode part coated with a negative electrode active material and a first uncoated part disposed adjacent to the negative electrode part; a positive electrode sheet facing the negative electrode sheet and including a positive electrode part coated with a positive electrode active material and a second uncoated part disposed adjacent to the positive electrode part; and at least one partitioning film disposed on a surface of the negative electrode sheet or a surface of the positive electrode sheet, wherein at least a portion of the first uncoated part of the negative electrode sheet or the second uncoated part of the positive electrode sheet includes at least one internally recessed notch structure. ### Claim 17 (depends on 16) The electronic device of claim 16, wherein the positive electrode sheet, the negative electrode sheet, and the at least one partitioning film are prepared in a roll shape formed by wrapping, and wherein the first uncoated part and the second uncoated part are disposed in a direction parallel to a direction of the wrapping. ### Claim 18 (depends on 17) The electronic device of claim 17, wherein a first notch structure formed in the first uncoated part is disposed in at least a portion of an upper end or lower end of the first uncoated part. ### Claim 19 (depends on 18) The electronic device of claim 18, wherein the at least one partitioning film includes a first partitioning film and a second partitioning film, the first partitioning film being disposed on a first surface of the negative electrode sheet and including an adhesive material, and the second partitioning film disposed between a second surface of the negative electrode sheet and the positive electrode sheet and including the adhesive material, and wherein a first area of the first partitioning film and a second area of the second partitioning film corresponding to the first notch structure are attached to each other by the adhesive material. ### Claim 20 (depends on 16) The electronic device of claim 16, wherein the notch structure formed in the first uncoated part or the second uncoated part includes a first portion of a first length formed in a lengthwise direction of the negative electrode sheet and a second portion of a second length extending from the first portion to an upper or lower end of the negative electrode sheet, and wherein the notch structure includes a structure bent or inclined from the first portion to the second portion.