WO2016117863A1 - 내부 터미널의 설치 구조가 개선된 전기에너지 저장장치 - Google Patents
내부 터미널의 설치 구조가 개선된 전기에너지 저장장치 Download PDFInfo
- Publication number
- WO2016117863A1 WO2016117863A1 PCT/KR2016/000182 KR2016000182W WO2016117863A1 WO 2016117863 A1 WO2016117863 A1 WO 2016117863A1 KR 2016000182 W KR2016000182 W KR 2016000182W WO 2016117863 A1 WO2016117863 A1 WO 2016117863A1
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- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- storage device
- energy storage
- anode
- metal case
- Prior art date
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- 238000004146 energy storage Methods 0.000 title claims abstract description 38
- 238000009434 installation Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims description 20
- 238000010294 electrolyte impregnation Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 71
- 239000002184 metal Substances 0.000 description 71
- 238000003860 storage Methods 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/74—Terminals, e.g. extensions of current collectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/008—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
- H01G9/151—Solid electrolytic capacitors with wound foil 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to an electrical energy storage device, and more particularly, to an electrical energy storage device having an improved installation structure of an internal terminal connected to an electrode of a cell assembly in a metal case.
- High-capacitance storage devices which are in the spotlight as the next generation of electric energy storage devices, include ultracapacitors (UC), supercapacitors (SC), and electric double layer capacitors (EDLC). That is, it is an energy storage device having an intermediate character of an electrolytic capacitor and a secondary battery, and is an energy storage device that can be used and replaced with a secondary battery due to its high efficiency and semi-permanent life characteristics.
- UC ultracapacitors
- SC supercapacitors
- EDLC electric double layer capacitors
- High-capacitance storage devices are also used as battery replacements for applications that are not easy to maintain and require long service life.
- the high-capacitance storage device has a fast charge and discharge characteristic, and thus is not only an auxiliary power source for mobile communication information devices such as mobile phones, laptops, PDAs, etc., but also requires electric vehicles, night road lights, and UPS (Uninterrupted Power Supply). It is very suitable as a main power supply or an auxiliary power supply such as), and is widely used for such a purpose.
- a cylindrical shape as shown in FIG. 1, is widely used.
- a high capacitance storage device includes a cell assembly 1 comprised of an anode, a cathode, a separator, and an electrolyte contained in an inner housing, a metal case 4 accommodating the cell assembly 1, and a metal. It includes a substantially plate-shaped negative electrode side inner terminal 2 and positive electrode side inner terminal 3 coupled to the upper and lower portions of the case 4 and connected to the negative electrode and the positive electrode of the cell assembly 1, respectively.
- the negative electrode inner terminal 2 is insulated from the metal case 4 by the insulating member 6 and in contact with the top plate 5, and the positive electrode inner terminal 3 is in contact with the metal case 4. It is common for the terminal portions 8 and 9 to protrude from the center of the upper plate 5 and the lower center of the metal case 4.
- Coupling between the cathode side inner terminal 2 and the top plate 5, and the anode side inner terminal 3 and the metal case 4 is usually made by a fastening bolt (7).
- the cathode-side inner terminal 2 and the top plate 5 are not only complicated in their respective structures, but also have a heavy and bulky problem, and thus require structural improvements.
- the negative electrode inner terminal 2 and the positive electrode inner terminal 3 can be combined with the metal case 4 by beading the metal case 4.
- a predetermined groove (not shown) is formed along the outer circumferential surfaces of the cathode-side inner terminal 2 and the anode-side inner terminal 3, and the metal case is subjected to a beading process for the metal case 4.
- a method of fixing the inner terminal to the metal casing 4 has been proposed by fitting the protrusions projecting into the grooves into the grooves.
- the upper end of the metal case 4 is provided with a curling processing portion 10 formed to be bent in the direction of the upper plate 5 is provided to strengthen the pressure resistance by adjusting the amount of curling (Curling) Can be made.
- a curling processing portion 10 formed to be bent in the direction of the upper plate 5 is provided to strengthen the pressure resistance by adjusting the amount of curling (Curling) Can be made.
- the present invention has been made in consideration of the above problems, and provides an electric energy storage device having an improved structure for installing an inner terminal in a metal case so that an inner terminal having a simplified structure in a thin form can be provided in the metal case. Its purpose is to.
- Another object of the present invention is to provide an electrical energy storage device having a structure that can sufficiently secure the internal space of the metal case to lower the internal pressure.
- Still another object of the present invention is to provide an electrical energy storage device having a low resistance characteristic by the outer peripheral end of the inner terminal is in close contact with the inner wall of the metal case.
- the present invention is an electrical energy storage device having an anode-side inner terminal consisting of a plate-shaped terminal body and a flange portion formed with at least one electrolyte impregnation hole, the upper surface of the terminal body and One surface of the flange portion is in contact with the cell assembly so that the positive electrode inner terminal and the cell assembly are coupled, the lower surface of the terminal body is in contact with the inner surface of the lower end of the case, and the flange portion is pressed by the bead for fixing the terminal.
- the anode provides an electrical energy storage device, characterized in that the inner terminal is fixed to the inside.
- the flange portion may be formed to extend upward on the outer circumference of the terminal body.
- one surface of the flange portion may be pressed by the terminal fixing beading portion, and the other surface of the flange portion may be tightly fixed to the inside of the case by being supported by a cell assembly.
- the upper edge end of the terminal fixing beading portion is positioned higher than the upper end of the flange portion so that the terminal fixing beading portion may press the flange portion.
- an electrical energy storage device having a positive electrode inner terminal having a plate-shaped terminal body formed with at least one through hole for electrolyte impregnation
- the lower surface of the terminal body of the positive electrode inner terminal of the case In contact with the inner surface of the lower end, the upper edge of the terminal body is pressed by the bead for fixing the terminal is provided an electrical energy storage device, characterized in that fixed inside the case.
- the anode-side inner terminal may be located between the lower edge end of the terminal fixing beading portion and the inner surface of the lower end of the case.
- the upper or lower edge of the terminal body may be chamfered.
- the electrical energy storage device has the following effects.
- the low resistance characteristics can be improved by making the outer circumferential end of the inner terminal easily adhere to the inner wall of the metal case.
- the anode-side inner terminal can be disposed so that the flange portion faces upward, the inner space of the metal case can be more secured, thereby increasing the electric energy storage capacity.
- the inner terminal can be manufactured by pressing, thereby reducing the manufacturing cost.
- FIG. 1 is a cross-sectional view showing the configuration of an electric energy storage device according to the prior art
- Figure 2 is a perspective view showing the appearance of the electrical energy storage device according to an embodiment of the present invention
- FIG. 3 is a partially enlarged cross-sectional view of FIG. 2;
- FIG. 4 is a perspective view showing the configuration of the anode-side inner terminal in FIG.
- FIG. 5 is a partially enlarged cross-sectional view showing the configuration of an electrical energy storage device according to another embodiment of the present invention.
- FIG. 6 is a perspective view showing the configuration of the anode-side inner terminal in FIG.
- FIG. 7 is a cross-sectional view and a partially enlarged view showing a modified example in which the top edge of the anode-side inner terminal is chamfered in FIG. 5;
- FIG. 8A is a perspective view illustrating a configuration of an anode-side inner terminal in FIG. 7;
- FIG. 8B is a perspective view illustrating the anode-side inner terminal having the chamfered bottom surface of the anode-side inner terminal as a modification of FIG. 8A.
- FIG. 2 is a perspective view showing the appearance of the electrical energy storage device according to a preferred embodiment of the present invention
- Figure 3 is a cross-sectional view of FIG.
- an electrical energy storage device includes a cell assembly 90, a cylindrical metal case 100 accommodating the cell assembly 90, and a metal case ( A cathode side outer terminal 110 positioned above the cathode 100, a cathode side inner terminal 111 disposed inside the cathode side outer terminal 110 and connected to the cathode of the cell assembly 90, and a metal; An anode-side outer terminal 150 provided at one end of the case 100, an anode-side inner terminal 140 disposed inside the anode-side outer terminal 150 and connected to the anode of the cell assembly 90; It is formed on the metal case 100 includes a terminal fixing beading unit (101, 102) to provide a terminal fixing function.
- the cell assembly 90 is composed of a positive electrode, a negative electrode, a separator, and an electrolyte to provide an electrochemical energy storage function.
- a conventional jelly roll type cell may be employed as the cell assembly 90.
- the metal case 100 has a cylindrical body in which an inner space is formed to accommodate the cell assembly 90 contained in an inner housing after being processed in the form of a winding element.
- the metal case 100 may be configured in the form of an aluminum cylinder.
- any one of the upper or lower surface of the cylindrical body is formed with a lower end for closing the cylindrical body. Therefore, the cell assembly 90 may be accommodated due to the structure of the metal case 100 having a cylindrical body and a lower end.
- a portion of the lower end is provided with an anode side external terminal 150 protruding to the outside.
- the cathode-side outer terminal 110 provides a current movement path while capping the upper end of the metal case 100, and has a circular outer circumferential surface corresponding to the inner circumferential surface of the metal case 100, and the upper and lower surfaces thereof are various three-dimensional. It may be configured in a shape.
- the edge end of the cathode-side external terminal 110 is adjacent to the cured processing part with the insulating member 130 interposed therebetween.
- a through hole 113 extending in the thickness direction is formed in the center of the cathode-side external terminal 110.
- the through hole 113 is used not only as a space for installing the automatic return type safety valve 120, but also as a pass for injecting electrolyte and an air vent for vacuum operation.
- the negative electrode external terminal 110 is fixed to the metal case 100 through a beading process on the metal case 100. Accordingly, the terminal fixing beading portion 101 is formed on the side surface of the metal case 100 corresponding to the cathode-side external terminal 110.
- the negative electrode inner terminal 111 is disposed below the negative electrode outer terminal 110 and connected to the negative electrode of the cell assembly 90.
- the anode side inner terminal 140 is fixed to the cell assembly 90 such that a portion of the upper surface of the terminal body 141 and the flange portion 145 of the anode side inner terminal 140 contact the cell assembly 90.
- the anode-side inner terminal 140 is disposed inside the metal case 100 so that the bottom surface contacts the inner surface of the lower end of the metal case 100, so that the anode-side inner terminal 140 contacts the anode-side outer terminal 150, and the top surface is the cell assembly 90. Is connected to the anode.
- the inner bottom surface of the metal case 100 forms an inner bottom surface of the metal case 100.
- the anode-side inner terminal 140 has a thin and flat plate-shaped terminal body 141, and A flange portion 145 having an outer circumferential end of the terminal body 141 extending upwardly perpendicularly to the plane of the terminal body 141; remind A plurality of electrolyte impregnation holes 142 formed in the terminal body 141 is provided.
- the anode side inner terminal 140 is fixed to the metal case 100 by pressing the flange portion 145 by the terminal fixing beading portion 102 protruding into the metal case 100.
- Terminal body 141 is It has a circular outer circumference, but has no groove on the outer circumference, unlike conventional inner terminals fixed to a metal case by a beading process. It consists of a thin plate body. The terminal body 141 is disposed to make surface contact with an inner surface of the lower end of the metal case 100.
- the electrolyte impregnation hole 142 is formed to penetrate the terminal body 141 in the thickness direction to provide a passage for moving the liquid electrolyte during the electrolyte injection process.
- most of the plurality of electrolyte impregnation holes 142 are formed at equal intervals along the circumferential direction of the terminal body 141, which one is formed in the center of the terminal body 141 desirable.
- the anode-side inner terminal 140 is fixed in the metal case 100 by the terminal fixing beading portion 102 and the cell assembly 90 formed below the metal case 100 by beading.
- the anode-side inner terminal 140 is pressed by the flange portion 145 by the terminal fixing beading portion 102 protruding into the metal case 100 to be firmly in the metal case 100. It is fixed.
- the anode-side inner terminal 140 is pressed on one surface of the flange portion 145 by the protruding portion of the beading portion 102 for fixing the terminal, and the other surface of the flange portion 145 is applied to the cell assembly 90. It is held in close contact with the inside of the metal case 100 by being supported by.
- the height of the upper edge end 102b of the terminal fastening bead 102 is preferably designed to be higher than the top height of the flange 145.
- the upper edge end 102b and the lower edge end 102c of the terminal fixing beading part 102 are points at which the protrusion of the terminal fixing beading part 102 starts on the inner surface of the metal case 100. Corresponding to the top and bottom of the groove portion of the terminal fixing beading portion 102, respectively.
- FIG. 5 illustrates a configuration of an electric energy storage device according to another embodiment of the present invention
- FIG. 6 illustrates a configuration of the anode-side internal terminal 140 in FIG. 5.
- the anode-side inner terminal 140 is composed of a thin plate-like body having a circular outer periphery, and a protruding end 102a of the terminal fixing beading portion 102 and a metal case which is an inner terminal supporting surface ( It is disposed in the section (A) between the inner bottom surface of the lower end 100 is fixed by the terminal fixing beading portion (102).
- the lower surface of the terminal body 141 of the anode-side inner terminal 140 is in contact with the inner surface of the lower end of the metal case 100, the upper edge 141a of the terminal body 141 is the terminal fixing beading portion 102 Pressurized by the metal case 100 is fixed to the inside.
- the anode-side inner terminal 140 is preferably disposed between the second edge end 102c of the terminal fixing beading portion 102 and the inner surface of the lower end of the metal case 100.
- the anode side inner terminal 140 When the anode side inner terminal 140 is disposed between the second edge end 102c of the terminal fixing beading portion 102 and the inner surface of the lower end of the metal case 100, the anode side inner terminal 140 has a thickness thereof. (t) is designed to be the same height as the height between the second edge end 102c of the terminal fixing beading portion 102 and the inner surface of the lower end of the metal case 100, thereby making it thin and effectively moving up and down. Can be prevented.
- FIG. 7 shows a modification of the anode side inner terminal of FIG. 5.
- the top edge of the anode-side inner terminal 140 has a chamfering process of C1.8 or higher or R1.5. The above round processing can be performed.
- FIG. 8A illustrates an example in which the top edge 141a of the anode-side inner terminal 140 is chamfered.
- the first curved portion 143 is formed by chamfering the upper edge 141a of the anode-side inner terminal 140 as illustrated in FIG. 8A, the anode-side inner terminal 140 inside the metal case 100.
- the beading process to fix the inner surface of the metal case 100 can be prevented from being damaged or broken by the upper edge 141a of the anode side inner terminal 140, the anode side inner terminal 140 and the terminal Since the contact area with the fixing beading part 102 becomes wider, the anode-side inner terminal 140 can be reliably fixed inside the metal case 100.
- FIG. 8B illustrates an example in which the bottom edge 141b of the anode-side inner terminal 140 is chamfered in contrast to FIG. 8A.
- the anode-side inner terminal 140 is formed of the metal case 100. It is possible to prevent the phenomenon that the poor contact with the bottom surface of the metal case 100 by being pushed up by the inner edge where the side and the bottom inner surface meet.
- the upper edge 141a of the anode side inner terminal 140 is chamfered and applied to the energy storage device as shown in FIG. 8A, or the lower edge 141b of the anode side inner terminal 140 is chamfered as shown in FIG. 8B. It can be applied to energy storage devices.
- the anode-side inner terminal 140 having the top and bottom edges 141a and 141b chamfered may be applied to the energy storage device.
- the electrical energy storage device has the flange portion of the anode-side inner terminal 140 in a state where the anode-side inner terminal 140 is disposed on the inner surface of the lower end of the metal case 100.
- the anode-side inner terminal 140 may be conveniently fixed to the metal case 100 by beading the outside of the metal case 100 in accordance with the height of the 145 or the height of the terminal body 141.
- the anode-side inner terminal 140 may be manufactured in a thin shape with a simple structure as compared with the conventional structure, the inner space of the metal case 100 may be sufficiently secured. Accordingly, since the internal pressure of the metal case 100 may be lowered, stability and lifespan of the electrical energy storage device may be improved. In addition, the low-resistance characteristics may be improved by bringing the anode-side inner terminal 140 into close contact with a wide contact area around the terminal fixing beading portion 102.
- the present invention When the present invention is applied, not only the high capacitance storage device can be reduced in size and weight, but also the process time of the electrolyte impregnation can be shortened, and the internal pressure of the high capacitance storage device is sufficiently secured, thereby lowering the internal pressure to ensure stability and It can improve the service life.
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (8)
- 적어도 하나 이상의 전해질 함침용 통공이 형성된 판상의 터미널 몸체와 플랜지부로 구성되는 양극측 내부 터미널을 구비한 전기에너지 저장장치에 있어서,상기 터미널 몸체(141)의 상면과 상기 플랜지부(145)의 어느 일면이 셀 조립체(90)와 접촉함으로써 상기 양극측 내부 터미널(140)과 상기 셀 조립체가 결합되고,상기 터미널 몸체(141) 하면이 케이스(100)의 하단부 안쪽면과 접촉되고,상기 플랜지부(145)가 터미널 고정용 비딩부(102)에 의해 가압되어 상기 케이스 내부에 양극측 내부 터미널(140)이 고정되는 것을 특징으로 하는 전기에너지 저장장치.
- 제1항에 있어서,상기 플랜지부(145)는 상기 터미널 몸체(141)의 외주에 상방으로 연장되게 형성되는 것을 특징으로 하는 전기에너지 저장장치.
- 제2항에 있어서,상기 플랜지부(145)의 일면이 상기 터미널 고정용 비딩부(102)에 의해 가압되고, 상기 플랜지부(145)의 다른 일면은 셀 조립체(90)에 의해 지지됨으로써 상기 케이스(100)의 내부에 밀착 고정되는 것을 특징으로 하는 전기에너지 저장장치.
- 제2항에 있어서,상기 플랜지부(145)는 상기 플랜지부(145)의 상단보다 상기 터미널 고정용 비딩부(102)의 상부 가장자리단(102b)이 높게 위치하여 상기 터미널 고정용 비딩부(102)가 상기 플랜지부를 가압하는 것을 특징으로 하는 전기에너지 저장장치.
- 적어도 하나 이상의 전해질 함침용 통공이 형성된 판상의 터미널 몸체를 가진 양극측 내부 터미널을 구비한 전기에너지 저장장치에 있어서,상기 양극측 내부 터미널(140)의 상기 터미널 몸체(141) 하면이 케이스(100)의 하단부 안쪽면과 접촉되고, 상기 터미널 몸체(141)의 상면 모서리(141a)가 터미널 고정용 비딩부(102)에 의해 가압되어 상기 케이스(100) 내부에 고정되는 것을 특징으로 하는 전기에너지 저장장치.
- 제5항에 있어서,상기 양극측 내부 터미널(140)은 상기 터미널 고정용 비딩부(102)의 하부 가장자리단(102c)과 상기 케이스(100)의 하단부 안쪽면 사이에 위치한 것을 특징으로 하는 전기에너지 저장장치.
- 제5항에 있어서,상기 터미널 몸체(141)는 비딩부 가공 시 상기 터미널 몸체(141)의 상면 모서리(141a)에 의해 상기 케이스(100)가 파손되는 것을 방지하기 위해 상기 터미널 몸체(141)의 상면 모서리(141a)가 모따기 가공된 것을 특징으로 하는 전기에너지 저장장치.
- 제5항에 있어서,상기 터미널 몸체(141)는 상기 케이스(100)의 내부 모서리에 의해 밀려 올라가지 않도록 상기 터미널 몸체(141)의 하면 모서리(141b)가 모따기 가공된 것을 특징으로 하는 전기에너지 저장장치.
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CN201680006147.9A CN107112148B (zh) | 2015-01-19 | 2016-01-08 | 改进内部接线端的安装结构的电能储存装置 |
EP16740336.9A EP3249668B1 (en) | 2015-01-19 | 2016-01-08 | Electric energy storage device having improved installation structure of internal terminal |
JP2017537410A JP6522765B2 (ja) | 2015-01-19 | 2016-01-08 | 内部ターミナルの設置構造が改善された電気エネルギー貯蔵装置 |
ES16740336T ES2895135T3 (es) | 2015-01-19 | 2016-01-08 | Dispositivo de almacenamiento de energía eléctrica que tiene una estructura de instalación del terminal interno mejorada |
PL16740336T PL3249668T3 (pl) | 2015-01-19 | 2016-01-08 | Urządzenie do magazynowania energii elektrycznej o ulepszonej konstrukcji instalacji wewnętrznego przyłącza |
US15/544,313 US10622165B2 (en) | 2015-01-19 | 2016-01-08 | Electric energy storage device having improved installation structure of internal terminal |
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CN107112148A (zh) | 2017-08-29 |
KR20160089178A (ko) | 2016-07-27 |
KR102143576B1 (ko) | 2020-09-09 |
EP3249668B1 (en) | 2021-08-11 |
ES2895135T3 (es) | 2022-02-17 |
US20180247773A1 (en) | 2018-08-30 |
JP2018507544A (ja) | 2018-03-15 |
EP3249668A4 (en) | 2018-04-04 |
CN107112148B (zh) | 2019-04-16 |
EP3249668A1 (en) | 2017-11-29 |
US10622165B2 (en) | 2020-04-14 |
JP6522765B2 (ja) | 2019-05-29 |
PL3249668T3 (pl) | 2022-06-13 |
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