WO2017034266A1 - 캡 조립체 - Google Patents
캡 조립체 Download PDFInfo
- Publication number
- WO2017034266A1 WO2017034266A1 PCT/KR2016/009252 KR2016009252W WO2017034266A1 WO 2017034266 A1 WO2017034266 A1 WO 2017034266A1 KR 2016009252 W KR2016009252 W KR 2016009252W WO 2017034266 A1 WO2017034266 A1 WO 2017034266A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cap
- vent
- safety vent
- safety
- cap assembly
- Prior art date
Links
- 230000000630 rising effect Effects 0.000 claims description 24
- 230000006698 induction Effects 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 4
- 230000001939 inductive effect Effects 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 2
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- 229910001007 Tl alloy Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- WJCRZORJJRCRAW-UHFFFAOYSA-N cadmium gold Chemical compound [Cd].[Au] WJCRZORJJRCRAW-UHFFFAOYSA-N 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Images
Classifications
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/375—Vent means sensitive to or responsive to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
-
- 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
- H01M50/147—Lids or covers
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- 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
- 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
Definitions
- the present invention relates to a cap assembly, and more particularly to a cap assembly that is easy to discharge gas.
- a secondary battery refers to a battery that can be charged and discharged, unlike a primary battery that cannot be charged.
- Such a secondary battery is widely used in advanced electronic devices such as phones, notebook computers, and camcorders.
- the secondary battery according to the prior art includes an electrode assembly, an electrolyte, a can containing the electrode assembly and the electrolyte, and a cap assembly mounted in an opening of the can.
- the secondary battery according to the related art releases gas to the outside through the safety vent of the cap assembly when the gas pressure rises inside the can.
- the safety vent of the cap assembly
- the present invention has been made to solve the above problems, the present invention is to open a safety vent even if the temperature inside the can rises to release a high temperature heat source with the gas inside the can to the outside, the accident in advance It is to provide a cap assembly to prevent.
- the cap assembly mounted in the opening of the can includes a top cap; A safety device provided under the top cap; A safety vent provided under the safety element and having a cutout; A down cap provided below the safety vent; A gasket surrounding an edge of the top cap, the safety element, the safety vent, and the down cap and mounted in an opening of the can; And an induction part for discharging the hot gas to the outside by raising the safety vent and cutting the incision while expanding between the safety vent and the down cap by the hot gas delivered from the inside of the can. .
- the safety vent may include a vent coupling part coupled to a gasket and a vent rising part supported by the rising induction part, and the cutout may separate the vent coupling part and the rising induction part when cut.
- the rising induction part may be formed of a shape memory alloy material so as to be restored to a circular shape after expanding according to a temperature.
- the rising induction part may be provided with at least two or more between the safety vent and the down cap to cut at least two cutouts formed in the safety vent.
- Both ends of the lift guide portion may be attached to the safety vent and the down cap, respectively.
- the present invention has the following effects.
- At least two or more of the safety vents can be opened, so that a gas or a heat source can be released more quickly.
- FIG. 1 is a cross-sectional view showing a secondary battery having a cap assembly according to the present invention.
- FIG. 2 is a cross-sectional view showing an operating state of a secondary battery provided with a cap assembly according to the present invention.
- FIG 3 is a perspective view showing a safety vent according to the present invention.
- Figure 4 is a perspective view showing another embodiment of the safety vent according to the present invention.
- the secondary battery according to the present invention includes an electrode assembly 110, an electrolyte (not shown), a can 120 in which the electrode assembly 110 and the electrolyte are accommodated through the opening 121, And a cap assembly 130 mounted in the opening 121 of the can 120.
- the cap assembly 130 seals the can while being mounted in the opening of the can, and includes a top cap 131 provided at an upper portion of the opening 121 of the can 120 and a safety element provided at a lower portion of the top cap 131.
- 132 a safety vent 133 provided at a lower portion of the safety element 132, and having a cutout 133a formed therein, a down cap 134 and a top cap 131 provided at a lower portion of the safety vent 133.
- the device 132 includes a gasket 135 that surrounds an edge of the safety vent 133 and the down cap 134 and is mounted in the opening 121 of the can 120.
- the cutout 133a is formed as a cutout groove so as to be stably cut.
- the secondary battery according to the present invention generates a high temperature gas by the electrode assembly and the electrolyte during charging and discharging, and the pressure inside the can 120 increases due to the gas, wherein the pressure inside the can 120 is predetermined.
- the safety vent 133 is pressurized, and the cutout 133a is cut in this way to discharge the gas inside the can 120 to the outside.
- the secondary battery according to the present invention includes an upward induction part that expands and contracts according to temperature so that the cutout 133a of the safety vent 133 may be cut even when the gas pressure is increased as well as the temperature of the gas. 136).
- the rising induction part 136 is formed of a material expanding by high temperature, and is provided between the safety vent 133 and the down cap 134. That is, the rising induction part 136 raises the safety vent 133 while expanding by the high temperature gas transmitted from the inside of the can 120, and at this time, the incision 133a having the weak strength is cut in the inside of the can 120. Release the gas to the outside.
- the rising induction part 136 pressurizes the safety vent 133 and the down cap 134 in a direction in which they are expanded while expanding by high temperature heat, and the cutout portion of the safety vent 133 having a weak strength ( As the 133a is cut off, the gas inside the can 120 may be discharged to the outside through a hole formed by the cutout 133a.
- the secondary battery according to the present invention is open to high heat as well as gas pressure inside the can, thereby increasing safety.
- the safety vent 133 includes a vent coupling part 133b coupled to the gasket 135 and a vent rising part 133c supported by the rising induction part 136.
- the cutout 133a is formed between the vent coupling part 133b and the vent rising part 133c. That is, the cutout 133a may release a lot of gas and high heat to the outside more quickly while separating the vent coupling part 133b and the vent rising part 133c during cutting.
- the rising induction part 136 is provided with a shape memory alloy material to be restored to a circular shape after expanding according to the temperature. That is, the shape memory alloy is a metal that remembers the shape of the seawater even when the deformation occurs due to high heat, and then restores it to its original state when the temperature decreases.
- shape memory alloys include nickel-titanium alloys, copper-zinc alloys, gold-cadmium alloys, and indium thallium alloys.
- the rising induction part 136 as the shape memory alloy material, it is possible to respond quickly to changes in the internal temperature of the can, thereby increasing the safety of the secondary battery.
- the cap assembly 130 at least the safety vent 133 and the down cap (when fail to form the cutout 133a in the form of a band due to the weakened strength of the safety vent 133) 134 is provided between at least two, and when the temperature inside the can is increased, at least two cutouts 133a formed in the safety vent 133 may be cut to quickly release gas or high heat in both directions.
- both ends of the rising induction part 136 are bonded to the safety vent 133 and the down cap 134, respectively, which is the rising induction part 136 between the safety vent 133 and the down cap 134 during the secondary battery flow.
- the cap assembly according to the present invention having such a configuration includes a rising induction part 136 that expands by high heat so that the cap assembly is actively opened without additional external control not only for the gas pressure of the secondary battery but also for high temperature. And high heat can be released quickly to the outside.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
Claims (5)
- 캔의 개구부에 실장되는 캡 조립체로서,탑 캡;상기 탑 캡의 하부에 구비되는 안전 소자;상기 안전 소자의 하부에 구비되고, 절개부가 형성된 안전벤트;상기 안전벤트의 하부에 구비되는 다운 캡;상기 탑 캡, 상기 안전 소자, 상기 안전벤트 및 다운 캡의 테두리를 감싸고, 상기 캔의 개구부에 실장되는 가스켓; 및상기 안전벤트와 상기 다운 캡 사이에는 상기 캔 내부로부터 전달되는 고온의 가스에 의해 팽창하면서 상기 안전벤트를 상승시켜 상기 절개부를 절개시킴에 따라 상기 고온의 가스를 외부로 방출시키는 상승유도부를 포함하는 것을 특징으로 하는 캡 조립체.
- 청구항 1에 있어서,상기 안전벤트는 상기 가스켓에 결합되는 벤트 결합부와, 상기 상승유도부에 의하여 지지되는 벤트 상승부를 포함하며,상기 절개부는 절개시 상기 벤트 결합부와 상기 벤트 상승부를 분리시키는 것을 특징으로 하는 캡 조립체.
- 청구항 1에 있어서,상기 상승유도부는 온도에 따라 팽창한 후에 원형으로 복원될 수 있도록 형상기억합금 소재로 마련되는 것을 특징으로 하는 캡 조립체.
- 청구항 1에 있어서,상기 상승유도부는 상기 안전벤트와 상기 다운 캡 사이에 적어도 2개 이상 구비되어 상기 안전벤트에 형성된 절개부를 적어도 2 곳 이상 절개시키는 것을 특징으로 하는 캡 조립체.
- 청구항 1에 있어서,상기 상승유도부의 양 단부는 상기 안전벤트와 상기 다운 캡에 각각 접착되는 것을 특징으로 하는 캡 조립체.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/556,560 US10388980B2 (en) | 2015-08-21 | 2016-08-22 | Cap assembly |
EP16839555.6A EP3252849B1 (en) | 2015-08-21 | 2016-08-22 | Cap assembly |
CN201680015332.4A CN107996005B (zh) | 2015-08-21 | 2016-08-22 | 盖组件 |
JP2018506331A JP6629426B2 (ja) | 2015-08-21 | 2016-08-22 | キャップ組立体 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2015-0118022 | 2015-08-21 | ||
KR1020150118022A KR101917411B1 (ko) | 2015-08-21 | 2015-08-21 | 캡 조립체 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017034266A1 true WO2017034266A1 (ko) | 2017-03-02 |
Family
ID=58100316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2016/009252 WO2017034266A1 (ko) | 2015-08-21 | 2016-08-22 | 캡 조립체 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10388980B2 (ko) |
EP (1) | EP3252849B1 (ko) |
JP (1) | JP6629426B2 (ko) |
KR (1) | KR101917411B1 (ko) |
CN (1) | CN107996005B (ko) |
WO (1) | WO2017034266A1 (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101836695B1 (ko) * | 2016-09-12 | 2018-03-08 | 현대자동차주식회사 | 개방압력 조정이 가능한 냉각시스템의 압력캡 |
KR20180092444A (ko) | 2017-02-09 | 2018-08-20 | 주식회사 엘지화학 | 원통형 리튬 이차전지 |
KR102308423B1 (ko) * | 2017-04-24 | 2021-10-05 | 주식회사 엘지에너지솔루션 | 형상 기억 합금체가 형성되어 있는 탑 캡을 구비하는 전지셀 |
KR102331123B1 (ko) | 2017-09-22 | 2021-11-26 | 주식회사 엘지에너지솔루션 | 탄성 부재를 포함하는 원통형 전지셀의 캡 어셈블리 |
KR102351247B1 (ko) * | 2018-01-12 | 2022-01-17 | 주식회사 엘지에너지솔루션 | 이차전지 |
KR102176427B1 (ko) * | 2018-02-06 | 2020-11-09 | 주식회사 엘지화학 | 원통형 리튬 이차전지 |
CN111490190B (zh) * | 2019-01-25 | 2021-08-10 | 比亚迪股份有限公司 | 电池盖板、电池及车辆 |
KR20230039263A (ko) * | 2021-09-14 | 2023-03-21 | 주식회사 엘지에너지솔루션 | 이차 전지 및 이를 포함하는 전지 모듈 |
Citations (5)
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JPH09129214A (ja) * | 1995-11-07 | 1997-05-16 | Wako Denshi Kk | 電池の安全装置 |
KR19980045826U (ko) * | 1996-12-27 | 1998-09-25 | 배순훈 | 리튬전지 |
JP2003288876A (ja) * | 2002-03-28 | 2003-10-10 | Sanyo Electric Co Ltd | 密閉型電池 |
KR100496302B1 (ko) * | 2003-05-19 | 2005-06-17 | 삼성에스디아이 주식회사 | 안전벤트를 가지는 각형 리튬 이차 전지 |
KR20060104333A (ko) * | 2005-03-30 | 2006-10-09 | 삼성에스디아이 주식회사 | 기능성 센터 핀을 갖는 원통형 리튬 이온 이차 전지 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0739047A3 (en) | 1995-04-21 | 1999-04-07 | Wako Electronics Co., Ltd. | Safety device for use in secondary battery |
JPH09106804A (ja) * | 1995-10-09 | 1997-04-22 | Wako Denshi Kk | 電池の安全装置 |
JP3599967B2 (ja) * | 1997-09-09 | 2004-12-08 | 松下電器産業株式会社 | 密閉型電池 |
JP2000277063A (ja) * | 1999-03-29 | 2000-10-06 | Sanyo Electric Co Ltd | 密閉型電池 |
KR100958649B1 (ko) | 2002-12-27 | 2010-05-20 | 삼성에스디아이 주식회사 | 전지부와, 이의 감는 방법과, 이를 채용하여 제조된 리튬이차 전지 |
JP4612321B2 (ja) | 2003-04-04 | 2011-01-12 | 株式会社東芝 | 非水電解質二次電池 |
KR100591421B1 (ko) | 2004-09-07 | 2006-06-21 | 삼성에스디아이 주식회사 | 형상기억 안전벤트를 갖는 리튬 이온 이차 전지 |
KR20110018415A (ko) | 2009-04-27 | 2011-02-23 | 파나소닉 주식회사 | 조립 밀봉체 및 그것을 이용한 전지 |
-
2015
- 2015-08-21 KR KR1020150118022A patent/KR101917411B1/ko active IP Right Grant
-
2016
- 2016-08-22 US US15/556,560 patent/US10388980B2/en active Active
- 2016-08-22 CN CN201680015332.4A patent/CN107996005B/zh active Active
- 2016-08-22 WO PCT/KR2016/009252 patent/WO2017034266A1/ko active Application Filing
- 2016-08-22 EP EP16839555.6A patent/EP3252849B1/en active Active
- 2016-08-22 JP JP2018506331A patent/JP6629426B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09129214A (ja) * | 1995-11-07 | 1997-05-16 | Wako Denshi Kk | 電池の安全装置 |
KR19980045826U (ko) * | 1996-12-27 | 1998-09-25 | 배순훈 | 리튬전지 |
JP2003288876A (ja) * | 2002-03-28 | 2003-10-10 | Sanyo Electric Co Ltd | 密閉型電池 |
KR100496302B1 (ko) * | 2003-05-19 | 2005-06-17 | 삼성에스디아이 주식회사 | 안전벤트를 가지는 각형 리튬 이차 전지 |
KR20060104333A (ko) * | 2005-03-30 | 2006-10-09 | 삼성에스디아이 주식회사 | 기능성 센터 핀을 갖는 원통형 리튬 이온 이차 전지 |
Non-Patent Citations (1)
Title |
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See also references of EP3252849A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP3252849B1 (en) | 2018-11-21 |
EP3252849A4 (en) | 2018-04-18 |
JP6629426B2 (ja) | 2020-01-15 |
US10388980B2 (en) | 2019-08-20 |
CN107996005B (zh) | 2020-11-13 |
JP2018522388A (ja) | 2018-08-09 |
KR101917411B1 (ko) | 2018-11-09 |
US20180053961A1 (en) | 2018-02-22 |
KR20170022702A (ko) | 2017-03-02 |
EP3252849A1 (en) | 2017-12-06 |
CN107996005A (zh) | 2018-05-04 |
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