JPWO2020071719A5 - - Google Patents
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- JPWO2020071719A5 JPWO2020071719A5 JP2021516988A JP2021516988A JPWO2020071719A5 JP WO2020071719 A5 JPWO2020071719 A5 JP WO2020071719A5 JP 2021516988 A JP2021516988 A JP 2021516988A JP 2021516988 A JP2021516988 A JP 2021516988A JP WO2020071719 A5 JPWO2020071719 A5 JP WO2020071719A5
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- Prior art keywords
- electrode
- secondary battery
- length
- insulator
- direct contact
- Prior art date
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- 239000012212 insulator Substances 0.000 claims description 7
- 230000002093 peripheral Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims 3
- 238000000926 separation method Methods 0.000 claims 3
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 claims 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 230000000875 corresponding Effects 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Description
本発明によれば、２個のカンを強引に嵌合した形態に組み立てて正極及び負極をそれぞれ接続させることで、２個のカンが正極端子及び負極端子となって組み立てが簡略になり、気密性等の信頼性を確保でき、大容量の中大型電池を容易に製造できる。これにより、高い生産性と低い製造コストが発生する効果がある。
According to the present invention, two cans are forcibly fitted together to connect the positive electrode and the negative electrode, respectively, so that the two cans serve as the positive electrode terminal and the negative electrode terminal, simplifying assembly and airtightness. It is possible to ensure reliability such as durability, and to easily manufacture large-capacity, medium-to-large-sized batteries. This has the effect of generating high productivity and low manufacturing costs.
また、本発明によれば、電池内部圧力が臨界点以上に到達した時、強引に嵌合して結合された２個のカンの結合が解除され、２個のカンに結合された電極組立体の接続が切られる。これにより、追加的な安全装置がなくても二次電池の過充電及び外部短絡等で電池内部の温度及び圧力の急激な増加がある時、強引に嵌合して結合された２個のカンの結合が解除されて電流遮断機能を行う安全装置の機能を発揮できる。
In addition, according to the present invention, when the internal pressure of the battery reaches a critical point or more, the two cans that are forcibly engaged and connected are disconnected, and the electrode assembly is connected to the two cans. is disconnected. As a result, even without an additional safety device, when the temperature and pressure inside the battery suddenly increase due to overcharging or external short circuit of the secondary battery, the two cans that are forcibly engaged and coupled together can be used. is released and the function of a safety device that performs a current interrupting function can be exhibited.
このとき、第１カン１２１及び第２カン１２２は、互いに強引に嵌合した形態に結合されてよい。すなわち、外周面に絶縁体１２３が備えられた第２カン１２２を第１カン１２１の内周面に強引に嵌合して結合させてよい。
At this time, the first can 121 and the second can 122 may be combined in a forcibly fitted manner. That is, the second can 122 provided with the insulator 123 on the outer peripheral surface may be forcibly fitted and coupled to the inner peripheral surface of the first can 121 .
前記のような構成を有する本発明の一実施形態による二次電池１００は、第１カン１２１及び第２カン１２２を強引に嵌合した形態に組み立てて第１電極１１１及び第２電極１１２をそれぞれ接続させることで、第１カン１２１及び第２カン１２２が第１電極端子及び第２電極端子となって組み立てが簡略になり、気密性等の信頼性を確保でき、大容量の中大型電池を容易に製造できる。これにより、高い生産性と低い製造コストが発生するという効果がある。
The secondary battery 100 according to an embodiment of the present invention configured as described above is assembled in such a manner that the first can 121 and the second can 122 are forcibly engaged to form the first electrode 111 and the second electrode 112, respectively. By connecting, the first can 121 and the second can 122 become the first electrode terminal and the second electrode terminal, which simplifies assembly, ensures reliability such as airtightness, and enables medium-sized and large-sized batteries with large capacity. Easy to manufacture. This has the effect of generating high productivity and low manufacturing costs.
また、二次電池１００の内部圧力が臨界点以上に到達した時、強引に嵌合して結合された第１カン１２１と第２カン１２２の結合が解除され、第１カン１２１及び第２カン１２２に結合された電極組立体１１０の接続が切られる。すなわち、電池内部圧力が臨界点以上に到達した時、第１カン１２１及び第２カン１２２は互いに離隔される圧力を受け、第１カン１２１は一側方向（Ｃ１）に移動され、第２カン１２２は他側方向（Ｃ２）に移動されて第１カン１２１及び第２カン１２２の強引に嵌合した結合が解除され得る。このとき、第１カン１２１及び第２カン１２２に直接接触された電極組立体１１０の第１電極１１１及び第２電極１１２の端部と第１カン１２１又は第２カン１２２の接触が離れるようになり、電流が遮断され得る。よって、追加的な安全装置がなくても二次電池１００の過充電及び外部短絡等で電池内部の温度及び圧力の急激な増加がある時、強引に嵌合して結合された第１カン１２１と第２カン１２２の結合が解除されて電流遮断機能を行う安全装置の機能を発揮できる。
In addition, when the internal pressure of the secondary battery 100 reaches a critical point or higher, the first can 121 and the second can 122 that are forcibly coupled are released, and the first can 121 and the second can are released. The electrode assembly 110 coupled to 122 is disconnected. That is, when the internal pressure of the battery reaches a critical point or higher, the first can 121 and the second can 122 are separated from each other, and the first can 121 is moved in one direction (C1) and the second can. 122 can be moved in the other direction (C2) to release the forcefully fitted coupling of the first can 121 and the second can 122 . At this time, the ends of the first electrode 111 and the second electrode 112 of the electrode assembly 110 that are in direct contact with the first can 121 and the second can 122 are separated from the contact between the first can 121 and the second can 122 . and the current can be interrupted. Therefore, even if there is no additional safety device, the first can 121 is forcibly engaged and coupled when the internal temperature and pressure of the secondary battery 100 suddenly increases due to overcharging, external short circuit, etc. and the second can 122 are released from each other, so that the function of a safety device that performs a current interrupting function can be exhibited.
Claims (17)
前記電極組立体を内部に収容する収容部が形成されたカンであって、互いに向かい合う方向に開口された円筒状に形成される第１カン及び第２カンを含むカンと、
前記第１カンと前記第２カンとの間の重畳部分を絶縁する絶縁体と、
を含み、
前記第１カンは前記第１電極の端部と直接接触されて第１電極端子を形成し、前記第２カンは前記第２電極の端部と直接接触されて第２電極端子を形成し、前記第１カンと前記第２カンとの間に重畳される区間の長さは、前記第１カン及び前記第２カンの直径よりさらに長い、二次電池。 an electrode assembly in which a first electrode, a separation membrane, and a second electrode are alternately laminated and wound;
a can having an accommodating portion for accommodating the electrode assembly therein, the can including a first can and a second can formed in a cylindrical shape with openings facing each other;
an insulator that insulates an overlapping portion between the first can and the second can;
including
the first can is in direct contact with the end of the first electrode to form a first electrode terminal, the second can is in direct contact with the end of the second electrode to form a second electrode terminal; A secondary battery , wherein a length of a section overlapping between the first can and the second can is longer than diameters of the first can and the second can .
前記第１カンの内周面は、前記第２カンの外周面より大きく形成され、前記第２カンが前記第１カンに挿入される、請求項１に記載の二次電池。 The first can and the second can are cylindrically formed,
The secondary battery of claim 1, wherein the inner peripheral surface of the first can is larger than the outer peripheral surface of the second can, and the second can is inserted into the first can.
前記電極組立体を内部に収容する収容部が形成されたカンであって、互いに向かい合う方向に開口された円筒状に形成される第１カン及び第２カンを含むカンと、 a can having an accommodating portion for accommodating the electrode assembly therein, the can including a first can and a second can formed in a cylindrical shape with openings facing each other;
前記第１カンと前記第２カンとの間の重畳部分を絶縁する絶縁体と、 an insulator that insulates an overlapping portion between the first can and the second can;
を含み、 including
前記第１カンは前記第１電極の端部と直接接触されて第１電極端子を形成し、前記第２カンは前記第２電極の端部と直接接触されて第２電極端子を形成し、前記絶縁体は、前記第２カンの外周面にチュービング（Ｔｕｂｉｎｇ）、ラッピング（Ｗｒａｐｐｉｎｇ）又はコーティング（Ｃｏａｔｉｎｇ）のうち何れか一つの形態で備えられる、二次電池。 the first can is in direct contact with the end of the first electrode to form a first electrode terminal, the second can is in direct contact with the end of the second electrode to form a second electrode terminal; The secondary battery, wherein the insulator is provided in the form of any one of tubing, wrapping, and coating on the outer circumference of the second can.
前記第２カンは、一側部に一側方向に開口された第２開口部が形成され、他側部に他側方向に閉鎖された第２接続部が形成され、
前記第１電極の一側端部は前記第１接続部に直接接続され、前記第２電極の他側端部は前記第２接続部に直接接続される、請求項４から７のいずれか一項に記載の二次電池。 the first can has a first opening opening in the other side on the other side, and a first connecting part closed in the one side on the one side,
the second can is formed with a second opening that is open in one side on one side and a second connection that is closed in the other side on the other side;
8. The one - side end of the first electrode is directly connected to the first connecting portion, and the other-side end of the second electrode is directly connected to the second connecting portion. The secondary battery according to the item.
前記第２カンはスチール（Ｓｔｅｅｌ）を含んで形成される、請求項４から８のいずれか一項に記載の二次電池。 the first can is formed containing aluminum;
The secondary battery of any one of claims 4 to 8 , wherein the second can comprises steel.
前記第２カンはアルミニウムを含んで形成される、請求項４から８のいずれか一項に記載の二次電池。 the first can includes steel,
The secondary battery according to any one of claims 4 to 8 , wherein the second can is formed containing aluminum.
前記電極組立体を内部に収容する収容部が形成されたカンであって、互いに向かい合う方向に開口された円筒状に形成される第１カン及び第２カンを含むカンと、 a can having an accommodating portion for accommodating the electrode assembly therein, the can including a first can and a second can formed in a cylindrical shape with openings facing each other;
前記第１カンと前記第２カンとの間の重畳部分を絶縁する絶縁体と、 an insulator that insulates an overlapping portion between the first can and the second can;
を含み、 including
前記第１カンは前記第１電極の端部と直接接触されて第１電極端子を形成し、前記第２カンは前記第２電極の端部と直接接触されて第２電極端子を形成し、 the first can is in direct contact with the end of the first electrode to form a first electrode terminal, the second can is in direct contact with the end of the second electrode to form a second electrode terminal;
前記第１カン及び前記第２カンは円筒状に形成され、 The first can and the second can are cylindrically formed,
前記第１カンの内周面は、前記第２カンの外周面より大きく形成され、前記第２カンが前記第１カンに挿入され、 The inner peripheral surface of the first can is formed larger than the outer peripheral surface of the second can, and the second can is inserted into the first can,
前記第１カンと前記第２カンとの間の重畳される区間の長さは、カン全体長さの７０％以上１００％未満に形成される、二次電池。 The secondary battery, wherein the length of the overlapped section between the first can and the second can is 70% or more and less than 100% of the entire length of the can.
前記第１カンと前記第２カンが結合された前記カンの長さ方向の長さも１００ｍｍ～２５０ｍｍの範囲を有し、
前記第１カンと前記第２カンの直径は、それぞれ４０ｍｍ～６０ｍｍの範囲を有する、請求項１５または１６に記載の二次電池。 The lengths in the longitudinal direction of the first can and the second can each range from 100 mm to 250 mm,
The length in the longitudinal direction of the can in which the first can and the second can are combined also has a range of 100 mm to 250 mm,
17. The secondary battery according to claim 15 , wherein diameters of said first can and said second can each range from 40 mm to 60 mm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180118868A KR102455449B1 (en) | 2018-10-05 | 2018-10-05 | Rechargeable battery |
| KR10-2018-0118868 | 2018-10-05 | ||
| PCT/KR2019/012792 WO2020071719A1 (en) | 2018-10-05 | 2019-10-01 | Secondary battery |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2022501780A JP2022501780A (en) | 2022-01-06 |
| JPWO2020071719A5 true JPWO2020071719A5 (en) | 2022-08-15 |
| JP7193200B2 JP7193200B2 (en) | 2022-12-20 |
Family
ID=70055643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021516988A Active JP7193200B2 (en) | 2018-10-05 | 2019-10-01 | secondary battery |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11742541B2 (en) |
| EP (1) | EP3848993A4 (en) |
| JP (1) | JP7193200B2 (en) |
| KR (1) | KR102455449B1 (en) |
| CN (1) | CN112771709B (en) |
| WO (1) | WO2020071719A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102455449B1 (en) | 2018-10-05 | 2022-10-18 | 주식회사 엘지에너지솔루션 | Rechargeable battery |
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| KR200350687Y1 (en) | 2004-02-09 | 2004-05-31 | 정유린 | Battery |
| JP4174477B2 (en) * | 2004-02-23 | 2008-10-29 | 松下電器産業株式会社 | Battery, battery pack and manufacturing method thereof |
| KR100475989B1 (en) | 2004-07-02 | 2005-03-14 | 미쓰비시덴키 가부시키가이샤 | Lithium ion secondary battery |
| JP2007220321A (en) * | 2006-02-14 | 2007-08-30 | Matsushita Electric Ind Co Ltd | Lithium secondary cell |
| JP2009170575A (en) | 2008-01-15 | 2009-07-30 | Panasonic Corp | Surface-mounting square power storage cell |
| KR101023919B1 (en) | 2008-06-09 | 2011-03-22 | 삼성에스디아이 주식회사 | Lithium Secondary Battery |
| KR101016816B1 (en) | 2008-12-23 | 2011-02-21 | 삼성에스디아이 주식회사 | Secondary battery |
| US8481183B2 (en) | 2008-12-23 | 2013-07-09 | Samsung Sdi Co., Ltd. | Secondary battery |
| US8288036B2 (en) * | 2009-05-18 | 2012-10-16 | Samsung Sdi Co., Ltd. | Secondary battery and method of making the secondary battery |
| CN101728574A (en) * | 2009-12-04 | 2010-06-09 | 王昉 | Buckled lithium-ion storage battery with single-wall structure |
| JP2011171014A (en) * | 2010-02-16 | 2011-09-01 | Sumitomo Chemical Co Ltd | Novel battery, and usage thereof |
| KR101192138B1 (en) | 2010-07-01 | 2012-10-16 | 삼성에스디아이 주식회사 | Electrode assembly, method for fabricating the electrode assembly and secondary battery including the electrode assembly |
| DE102010033577A1 (en) * | 2010-08-03 | 2012-02-09 | Varta Microbattery Gmbh | Button cell with winding electrode with thermal fuse |
| KR101472168B1 (en) * | 2011-07-29 | 2014-12-12 | 주식회사 엘지화학 | Secondary battery having improved safety, and battery pack using the same |
| FR2988521B1 (en) | 2012-03-21 | 2016-10-07 | Batscap Sa | ENERGY STORAGE ASSEMBLY COMPRISING AN ELECTRICALLY INSULATING ELASTIC RING |
| KR101373218B1 (en) | 2012-09-11 | 2014-03-14 | 주식회사 루트제이드 | Stacked secondary battery |
| WO2014042400A1 (en) | 2012-09-11 | 2014-03-20 | 주식회사 루트제이드 | Stacked type secondary battery |
| US20150147616A1 (en) | 2013-11-25 | 2015-05-28 | Cornell University | Button cell casings suitable for non-aqueous cells |
| KR20150076382A (en) | 2013-12-26 | 2015-07-07 | 재단법인 포항산업과학연구원 | Sodium sulfur battery |
| KR101684283B1 (en) | 2014-07-18 | 2016-12-08 | 주식회사 엘지화학 | Jelly-roll type electrode assembly |
| KR102275331B1 (en) | 2014-10-30 | 2021-07-12 | 삼성에스디아이 주식회사 | Rechargeable battery |
| JP6811003B2 (en) | 2014-11-19 | 2021-01-13 | セイコーインスツル株式会社 | Electrochemical cell and manufacturing method of electrochemical cell |
| KR102023736B1 (en) | 2016-01-05 | 2019-09-20 | 주식회사 엘지화학 | Pouch case, secondary battery comprising the same, and preparation method therof |
| CN206921926U (en) | 2017-07-05 | 2018-01-23 | 广东工业大学 | A kind of new type lithium ion battery |
| KR102455449B1 (en) | 2018-10-05 | 2022-10-18 | 주식회사 엘지에너지솔루션 | Rechargeable battery |
-
2018
- 2018-10-05 KR KR1020180118868A patent/KR102455449B1/en active IP Right Grant
-
2019
- 2019-10-01 WO PCT/KR2019/012792 patent/WO2020071719A1/en unknown
- 2019-10-01 EP EP19868707.1A patent/EP3848993A4/en active Pending
- 2019-10-01 JP JP2021516988A patent/JP7193200B2/en active Active
- 2019-10-01 US US17/281,792 patent/US11742541B2/en active Active
- 2019-10-01 CN CN201980063962.2A patent/CN112771709B/en active Active
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