WO2012077927A2 - Dispositif de stockage d'énergie électrique et son procédé de fabrication - Google Patents

Dispositif de stockage d'énergie électrique et son procédé de fabrication Download PDF

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Publication number
WO2012077927A2
WO2012077927A2 PCT/KR2011/009114 KR2011009114W WO2012077927A2 WO 2012077927 A2 WO2012077927 A2 WO 2012077927A2 KR 2011009114 W KR2011009114 W KR 2011009114W WO 2012077927 A2 WO2012077927 A2 WO 2012077927A2
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WO
WIPO (PCT)
Prior art keywords
external terminal
cell
base
electrical energy
accommodating part
Prior art date
Application number
PCT/KR2011/009114
Other languages
English (en)
Korean (ko)
Other versions
WO2012077927A3 (fr
Inventor
김경수
Original Assignee
주식회사 에스이엔디
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 에스이엔디 filed Critical 주식회사 에스이엔디
Publication of WO2012077927A2 publication Critical patent/WO2012077927A2/fr
Publication of WO2012077927A3 publication Critical patent/WO2012077927A3/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
    • H01M50/543—Terminals
    • 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
    • H01M50/543—Terminals
    • H01M50/562—Terminals characterised by the material
    • 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
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • 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

Definitions

  • the present invention relates to an electrical energy reservoir and a method of manufacturing the same, and more particularly to a coin-type or button-type electrical energy reservoir and a method of manufacturing the same.
  • Electrical energy reservoirs such as capacitors or capacitors, use electrically conductive electrodes to perform electrical charging and discharging.
  • Such conventional electric energy reservoirs are used for real time clock (RTC) circuits or memory backup in mobile phones, GPS receivers, MP3 players and the like.
  • the conventional electric energy store is also used for a hybrid use to store the instantaneous energy, such as solar cells, wind power generation, and to make the secondary battery stable charging.
  • the conventional electric energy storage device is used as a high output energy source required for initial driving of an electric vehicle and the like at high speed.
  • This conventional electrical energy reservoir is mounted on a PCB substrate.
  • mobile phones, GPS receivers, MP3 players, etc. are becoming more and more miniaturized, and thus, miniaturization of components mounted on PCB boards is being demanded.
  • FIG. 1 is an exploded perspective view showing a configuration of a general electric energy reservoir (eg, surface mount electric double layer capacitor), and FIG. 2 is a cross-sectional view of the combination of FIG. 1.
  • the polarizable internal electrodes 12, 18 are spaced apart from each other by the separator 16. For example, the internal electrode 12 becomes an anode and the internal electrode 18 becomes a cathode.
  • the internal electrodes 12 and 18 and the separator 16 are held by the metal lower case 10 and the metal upper case 20.
  • the lower case 10 is electrically energized with the internal electrode 12, and the upper case 20 is electrically energized with the internal electrode 18.
  • the lower case 10 and the upper case 20 are caulked and sealed by the gasket 14.
  • the lower end of the upper case 20 is crimped and sealed.
  • the gasket 14 electrically insulates the lower case 10 and the upper case 20.
  • An electrolyte (not shown) is closely located on the surfaces of the internal electrodes 12 and 18. The electrolyte converts external electrical energy into physical or chemical energy.
  • the electrolyte remains in liquid, solid or gel state.
  • the separator 16 consists of paper, a nonwoven fabric, a polymer material, etc. of a porous structure. The separator 16 serves as a passage for the movement of the electrolyte while preventing electrical short circuit due to contact between the conductive internal electrodes 12 and 18 having different polarities.
  • the metallic outer terminal 22 is connected to the bottom of the lower case 10, and the metallic outer terminal 24 is connected to the upper surface of the upper case 20.
  • the external terminals 22 and 24 transmit external electric energy to the internal elements (for example, internal electrodes 12 and 18) and draw out the internal storage energy to the outside.
  • the external terminals 22, 24 are joined by the method of electric welding, laser welding, ultrasonic welding, etc.
  • the configuration as shown in FIG. 2 (the configuration except for the external terminals 22 and 24) may be expressed as one cell.
  • the external terminals 22, 24 do not leave the area occupied by the cell (the configuration in Fig. 2).
  • the external terminals 22 and 24 are inevitably out of the area occupied by the cell.
  • the external terminals 22 and 24 In order to surface mount the conventional electrical energy reservoir on the PCB, the external terminals 22 and 24 must be directed downward. At this time, the external terminal 24 connected to the upper case 20 should be spaced apart from the outer surface portion of the lower case 10 to prevent contact with the lower case 10. In other words, there should be a clearance to prevent a short. As a result, looking at the finished product is larger than the actual cell size. As a result, the miniaturization to thinning will be difficult.
  • the thickness of the cell may be thicker or thinner than the standard thickness depending on the thickness variation that occurs due to the manufacturing process characteristics.
  • the external terminals 22 and 24 are manufactured to a predetermined size, problems arise when the cell is thicker and thinner than the standard thickness.
  • the electrical energy reservoir is inclined in one direction.
  • the thickness H1 also referred to as height
  • the thickness H1 becomes larger than the height H2 of the external terminal 24.
  • the thickness H1 of the cell is thinner than the standard thickness, the thickness H1 becomes smaller than the height H2 of the external terminal 24.
  • the present invention has been proposed to solve the above-described problems, and an object thereof is to provide an electric energy reservoir and a method of manufacturing the same, which are smaller in size and easier to surface mount than the conventional products.
  • the electrical energy reservoir includes a cell housing and an external terminal housing spaced apart from the cell housing, wherein one surface of the external terminal housing is connected to the cell housing.
  • Communicated bases A first external terminal having a bending portion formed therein and inserted into the external terminal accommodating portion and contacting the first polar plane of the cell in which the bending portion is accommodated in the cell accommodating portion; And a second external terminal connected to the second polarity plane of the cell and spaced apart from the first external terminal.
  • the base is composed of any one of PEEK, PPS and LCP.
  • the first polar plane is the outer surface of the first case of the cell connected with the first inner electrode of the cell
  • the second polar plane is the second case of the cell connected with the second inner electrode spaced apart from the first inner electrode in the cell.
  • the outer surface of the first case and the second case is coupled to be spaced apart from each other via an insulating material.
  • One side of the first external terminal protrudes to the outside of the external terminal accommodating portion, and the protruding one side is in close contact with one side of the base.
  • the external terminal accommodating portion is formed to vertically penetrate the base.
  • the base is further formed with a hole in the other surface opposite to one surface of the outer terminal receiving portion for joining the bending portion and the first polar surface.
  • the first external terminal and the second external terminal do not leave the outermost portion of the base.
  • a base including an outer terminal accommodating part spaced apart from the cell accommodating part and the cell accommodating part and communicating with the cell accommodating part, wherein a first external part having a bending part is formed.
  • Manufacturing the terminal by insert molding the external terminal accommodating part; Storing the cell in the cell accommodating part to contact the first polar plane of the cell and the bending part; And connecting a second external terminal spaced apart from the first external terminal to the second polarity surface of the cell.
  • one side of the first external terminal protrudes to the outside of the external terminal accommodating portion and the protruding one side is in close contact with one side of the base.
  • the fabrication step consists of the base consisting of any one of PEEK, PPS and LCP.
  • the method may further include forming a hole on the other surface of the external terminal accommodating portion for joining the bending portion and the first polar surface.
  • the first external terminal and the second external terminal do not leave the outermost portion of the base.
  • the cell protrudes out of the cell housing, it can be easily checked through the vision camera, thereby simplifying product error determination. This improves work efficiency.
  • first external terminal and the second external terminal do not leave the outermost portion of the base, it is possible to further minimize the installation space occupancy of the product as compared to the existing.
  • FIG. 1 is an exploded perspective view showing the configuration of a general electrical energy reservoir.
  • FIG. 2 is a cross sectional view of FIG. 1.
  • FIG 3 is an exploded perspective view of an electrical energy reservoir according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view taken along the line A-A of FIG.
  • FIG. 5 is a bottom view of the base of FIG. 3.
  • FIG. 6 is a cross-sectional view of the combination of FIG.
  • FIG. 7 is a bottom view of a structure in which a cell, a base, and an external terminal of FIG. 3 are combined.
  • FIG 8 and 9 are views illustrating a manufacturing process of the electric energy reservoir according to the embodiment of the present invention.
  • FIG. 3 is an exploded perspective view of an electrical energy reservoir according to an embodiment of the present invention.
  • 4 is a cross-sectional view taken along the line A-A of FIG. 5 is a bottom view of the base of FIG. 3.
  • 6 is a cross-sectional view of the combination of FIG.
  • FIG. 7 is a bottom view of a structure in which a cell, a base, and an external terminal of FIG. 3 are combined.
  • the electrical energy reservoir of an embodiment of the present invention includes a cell 30, a base 32, and external terminals 34, 36.
  • the cell 30 includes a separator, a polarizable internal electrode, an upper case, a lower case, and a gasket as described in FIGS. 1 and 2.
  • FIG. 3 the cell 30 is schematically illustrated. The same configuration as in FIG. 2 (except for the external terminals 22 and 24) may be understood as the cell 30.
  • the base 32 is manufactured by injection. The top and bottom surfaces of the manufactured base 32 are flat.
  • the base 32 includes a cell accommodating portion 33, an external terminal accommodating portion 35, and a hole 37.
  • the cell accommodating portion 33 is formed to be opened up and down in the center portion of the base 32.
  • the cell accommodating part 33 accommodates the cell 30.
  • the external terminal accommodating part 35 is spaced apart from the cell accommodating part 33 so as to vertically penetrate the base 32.
  • One surface of the external terminal accommodating portion 35 is in communication with the cell accommodating portion 33.
  • the external terminal accommodating portion 35 accommodates the first external terminal 34.
  • the hole 37 is formed in the other surface opposite to one surface of the external terminal accommodating portion 35 for joining the bending portion 34a of the first external terminal 34 to the first polarity surface of the cell 30.
  • the hole 37 is formed laterally and opened. Laser welding or the like is performed to the bending portion 34a of the first external terminal 34 through the hole 37. As a result, the bending portion 34a and the first polar surface of the cell 30 abutting thereto are joined.
  • the first polar plane of the cell 30 will be described.
  • the outer surface of the upper case 20 connected to the internal electrode 18 may be understood as the first polar surface of the cell 30.
  • Notches 38 are formed at predetermined portions of the base 32. Notches 38 are formed to facilitate polarity discrimination.
  • the base 32 is made of a high heat resistant polymer such as polyether ether ketone (PEEK), poly phenylene sulfide (PPS), or liquid crystal polymer (LCP).
  • the material of the base 32 is made of a high heat resistant polymer such as the above-described super-engineering plastics (PEEK, PPS, LCP) to have excellent heat resistance.
  • PEEK, PPS, LCP super-engineering plastics
  • the base 32 is made of a high heat resistant polymer such as a super engineering plastic, the thermal stability is increased.
  • the first external terminal 34 has a bending portion 34a and is inserted into the external terminal accommodating portion 35.
  • the bending part 34a of the first external terminal 34 is in contact with the first polar plane of the cell 30 accommodated in the cell accommodating part 33.
  • One side of the first external terminal 34 protrudes to the outside of the external terminal accommodating portion 35, and one protruding side thereof is bent and adhered to one outer surface of the base 32 (the bottom of the base 32 in FIG. 6).
  • the other end of the first external terminal 34 is formed by half cutting. The reason for half-cutting is that in the case of manufacturing a large amount of electrical energy reservoirs sequentially, if the other end of the first external terminal 34 is half-cut together with the base 32 injection, it can be easily separated in a later separation process.
  • the first external terminal 34 is made of a metal material.
  • the outer surface of the first external terminal 34 is Sn or Au plated.
  • Sn or Au plating may be performed only on a portion of the first external terminal 34 that is in close contact with one outer surface of the base 32.
  • the second external terminal 36 is joined to the second polar plane of the cell 30 by laser welding or the like.
  • the second external terminal 36 is spaced apart from the first external terminal 34.
  • the second polarity plane of the cell 30 will be described.
  • the outer surface of the lower case 10 connected to the internal electrode 12 may be understood as the second polar plane of the cell 30.
  • the second external terminal 36 is made of a metal material.
  • the outer surface of the second external terminal 36 is Sn or Au plated. If necessary, Sn or Au plating may be performed only on the portion 36a of the bottom surface of the second external terminal 36 which contacts the PCB.
  • the first external terminal 34 and the second external terminal 36 do not escape the outermost portion of the base 32. As a result, it is possible to further minimize the installation space occupancy of the product compared to the existing.
  • FIG 8 and 9 are views illustrating a manufacturing process of the electric energy reservoir according to the embodiment of the present invention.
  • the cell 30 and the base 32 are prepared, respectively.
  • the manufacturing process of the cell 30 may be easily inferred by anyone using the well-known technology, even if there is no separate description.
  • the base 32 is manufactured using an injection method, but is injected with the first external terminal 34 being insert molded.
  • the injection-molded base 32 takes the form as shown in FIG. 8.
  • the cell 30 is accommodated in the cell accommodating part 33 as shown in FIG. 9.
  • the first polarity surface of the cell 30 and the bending portion 34a of the first external terminal 34 contact each other.
  • laser welding or the like is performed through the hole 37 to bond the bending portion 34a of the first external terminal 34 to the first polar surface of the cell 30.
  • the second external terminal 36 is bonded to the second polar plane of the cell 30 by laser welding or the like. This completes the electrical energy reservoir as shown in FIG.
  • the electric energy reservoir of the present invention is the first external terminal 34 and the second external terminal 36 is in close contact with the bottom surface of the base 32 (see Fig. 6), so that when the electric energy reservoir is surface-mounted on the PCB ( Minimization of tilt of the electrical energy reservoir).
  • the electric energy store of the present invention when comparing the electric energy store of the present invention manufactured as shown in FIG. 6 with a conventional electric energy store (see FIG. 2), the electric energy store of the present invention has an external terminal 34, 36 having a base 32. Do not escape the outermost of the. Thereby, the electrical energy reservoir of the present invention is smaller in size than the conventional product.
  • the electrical energy reservoir thus manufactured can easily make a good decision by the vision camera. In the conventional case, it was not easy to judge the good quality when the cell thickness was larger and smaller than the standard. However, in the electric energy reservoir manufactured according to the embodiment of the present invention, when the thickness of the cell 30 becomes larger than the standard, a part of the cell 30 is exposed outside the cell accommodating portion 33 of the base 32. . This can be easily confirmed through vision cameras, making it easy to judge the quality of the product. This will improve work efficiency.
  • the thickness of the cell 30 is smaller than the standard, only the thickness of the cell 30 is reduced, and there is no adverse effect on the planarization of the completed electrical energy reservoir. That is, the same tilting phenomenon does not occur in one direction as before.
  • the present invention is not limited only to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, the technical idea to which such modifications and variations are also applied to the claims Must see

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne un dispositif de stockage d'énergie électrique présentant une taille relativement petite et facilement monté sur une surface en comparaison des dispositifs de l'art connexe, et son procédé de fabrication. Le dispositif de stockage d'énergie électrique comprend une partie de réception de pile et une partie de réception de borne extérieure espacée de la partie de réception de pile. De même, le dispositif de stockage d'énergie électrique comprend en outre : une base dans laquelle une surface de la partie de réception de borne extérieure communique avec la partie de réception de pile ; une première borne extérieure comportant une partie courbée, insérée dans la partie de réception de borne extérieure, et en contact avec une première surface de pôle d'une pile reçue dans la partie de réception de pile ; et une seconde borne extérieure connectée à une seconde surface de pôle de la pile, la seconde borne extérieure étant espacée de la première borne extérieure.
PCT/KR2011/009114 2010-12-06 2011-11-28 Dispositif de stockage d'énergie électrique et son procédé de fabrication WO2012077927A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100123267A KR101023214B1 (ko) 2010-12-06 2010-12-06 전기 에너지 저장소자 및 그의 제조방법
KR10-2010-0123267 2010-12-06

Publications (2)

Publication Number Publication Date
WO2012077927A2 true WO2012077927A2 (fr) 2012-06-14
WO2012077927A3 WO2012077927A3 (fr) 2012-09-27

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PCT/KR2011/009114 WO2012077927A2 (fr) 2010-12-06 2011-11-28 Dispositif de stockage d'énergie électrique et son procédé de fabrication

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WO (1) WO2012077927A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104139U (fr) * 1990-02-12 1991-10-29
JP2002075311A (ja) * 2000-08-31 2002-03-15 Tyco Electronics Amp Kk 電池ホルダおよびこれに収容されるボタン型電池
JP2002324532A (ja) * 2001-04-26 2002-11-08 Iriso Denshi Kogyo Kk 電池ホルダ
JP2006331715A (ja) * 2005-05-24 2006-12-07 Union Machinery Co Ltd 電池ホルダ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3104139U (ja) 2004-03-22 2004-09-02 株式会社アドバネクス ボタン型バッテリーのホルダ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104139U (fr) * 1990-02-12 1991-10-29
JP2002075311A (ja) * 2000-08-31 2002-03-15 Tyco Electronics Amp Kk 電池ホルダおよびこれに収容されるボタン型電池
JP2002324532A (ja) * 2001-04-26 2002-11-08 Iriso Denshi Kogyo Kk 電池ホルダ
JP2006331715A (ja) * 2005-05-24 2006-12-07 Union Machinery Co Ltd 電池ホルダ

Also Published As

Publication number Publication date
WO2012077927A3 (fr) 2012-09-27
KR101023214B1 (ko) 2011-03-18

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