JP6838652B2 - 二次電池及び二次電池の製造方法 - Google Patents
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- 239000008151 electrolyte solution Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 15
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- 238000003466 welding Methods 0.000 claims description 8
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- 238000007599 discharging Methods 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
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Description
本出願は、2017年7月13日付韓国特許出願第10−2017−0089039号に基づいた優先権の利益を主張し、当該韓国特許出願の文献に開示されている全ての内容は、本明細書の一部として含まれる。
Claims (19)
- 電極及び分離膜が交互に積層されている電極組立体が製造される段階;
一定の外形を維持する電池ケースの内部に、前記電極組立体が開放部を介して挿入される段階;
前記電池ケースの前記開放部をカバーする段階;
電解液が、前記電池ケースに形成された注入口を介し、前記電池ケースの内部に注入される段階;
前記注入口が閉鎖される段階;
初期充電を行い前記電極組立体の極板の表面にSEI層を形成するプレフォーメーション工程が行われる段階;
前記電池ケースの一側に形成されたガス排出装置のスイッチに外力が印加される段階;
前記ガス排出装置のガスケットが前記スイッチに印加される外力の方向と同じ方向に進むように直線移動してガス排出ホールが開放される段階;及び
前記プレフォーメーション工程が行われる段階で前記電池ケースの内部に発生した第1ガスが外部に排出される段階を含む二次電池の製造方法。 - 前記第1ガスが外部に排出される段階以後に、
前記ガス排出装置がシーリングされる段階をさらに含む請求項1に記載の二次電池の製造方法。 - 前記ガス排出装置がシーリングされる段階において、
前記ガス排出装置がキャップでカバーされる段階;及び
前記キャップにレーザー溶接が行われる段階をさらに含む、請求項2に記載の二次電池の製造方法。 - 前記第1ガスが外部に排出される段階以後に、
前記二次電池の充電を完了させるフォーメーション工程が行われる段階をさらに含む請求項1から3のいずれか一項に記載の二次電池の製造方法。 - 前記フォーメーション工程が行われる段階以後に、
前記ガス排出装置の前記スイッチに外力が印加される段階;
前記ガス排出装置の前記ガスケットが直線移動して前記ガス排出ホールが開放される段階;及び
前記フォーメーション工程が行われる段階で前記電池ケースの内部に発生した第2ガスが外部に排出される段階をさらに含む請求項4に記載の二次電池の製造方法。 - 前記第2ガスが外部に排出される段階以後に、
前記ガス排出装置がシーリングされる段階をさらに含む請求項5に記載の二次電池の製造方法。 - 前記ガス排出装置がシーリングされる段階において、
前記ガス排出装置がキャップでカバーされる段階;及び
前記キャップにレーザー溶接が行われる段階をさらに含む、請求項6に記載の二次電池の製造方法。 - 前記ガス排出装置は、
前記外力が除去されると、前記ガスケットの位置を復元させて前記ガス排出ホールを閉鎖する復元部を含む、請求項1から7のいずれか一項に記載の二次電池の製造方法。 - 前記復元部は、
弾性力を生成して前記ガスケットの位置を復元する、請求項8に記載の二次電池の製造方法。 - 前記復元部は、
前記ガス排出ホールに対向する前記電池ケースの内壁と前記ガスケットに両端が接触し、長手方向に弾性力を生成する、請求項9に記載の二次電池の製造方法。 - 前記スイッチに前記外力が印加されると、
前記ガスケットは、
前記電池ケースの内側に直線移動して前記復元部を圧縮させる、請求項9または10に記載の二次電池の製造方法。 - 前記外力は前記スイッチを引っ張る力である、請求項1から9のいずれか一項に記載の二次電池の製造方法。
- 前記復元部は、ガス排出ホールに対向する前記電池ケースと前記ガスケットとの間に備えられ、
前記復元部の両端は前記電池ケースの内壁と前記ガスケットの一面とにそれぞれ接触している、請求項8または9に記載の二次電池の製造方法。 - 電極及び分離膜が交互に積層されている電極組立体を内部に収容し、一定の外形を維持する電池ケース;
前記電池ケースの内部に形成され、前記電池ケースの内外部を連通するガス排出ホールを開閉するガスケット;
外力が印加されると前記外力を前記ガスケットに伝達し、前記ガスケットを直線移動させて前記ガス排出ホールを開放するスイッチ;及び
前記外力が除去されると、前記ガスケットの位置を復元させて前記ガス排出ホールを閉鎖する復元部を含み、
前記ガスケットは前記スイッチに印加される外力の方向と同じ方向に進むように直線移動する、二次電池。 - 前記復元部は、
弾性力を生成して前記ガスケットの位置を復元する、請求項14に記載の二次電池。 - 前記復元部は、
前記ガス排出ホールに対向する前記電池ケースの内壁と前記ガスケットに両端が接触し、長手方向に弾性力を生成する、請求項15に記載の二次電池。 - 前記スイッチに前記外力が印加されると、
前記ガスケットは、
前記電池ケースの内側に直線移動して前記復元部を圧縮させる、請求項15または16に記載の二次電池。 - 前記外力は前記スイッチを引っ張る力である、請求項14または15に記載の二次電池。
- 前記復元部は、ガス排出ホールに対向する前記電池ケースと前記ガスケットとの間に備えられ、
前記復元部の両端は前記電池ケースの内壁と前記ガスケットの一面とにそれぞれ接触している、請求項14または15に記載の二次電池。
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KR1020170089039A KR102217448B1 (ko) | 2017-07-13 | 2017-07-13 | 이차 전지 및 이차 전지의 제조 방법 |
KR10-2017-0089039 | 2017-07-13 | ||
PCT/KR2018/007928 WO2019013574A1 (ko) | 2017-07-13 | 2018-07-12 | 이차 전지 및 이차 전지의 제조 방법 |
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CN103814457B (zh) * | 2011-09-27 | 2016-08-17 | 丰田自动车株式会社 | 电池 |
DE102012219887A1 (de) | 2012-10-31 | 2014-04-30 | Robert Bosch Gmbh | Batteriezelle |
JP5969356B2 (ja) | 2012-11-05 | 2016-08-17 | トヨタ自動車株式会社 | 密閉型電池の製造方法,密閉型電池の封止部材および密閉型電池 |
DE102013203037A1 (de) | 2013-02-25 | 2014-08-28 | Robert Bosch Gmbh | Batteriezelle mit wenigstens einem eine Öffnung aufweisenden Anschlusspol und Verfahren zur Herstellung einer Batteriezelle |
KR101801440B1 (ko) | 2014-10-22 | 2017-11-24 | 주식회사 엘지화학 | 이차 전지 |
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WO2019013574A1 (ko) | 2019-01-17 |
EP3503280A1 (en) | 2019-06-26 |
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KR102217448B1 (ko) | 2021-02-22 |
US11056749B2 (en) | 2021-07-06 |
CN109845014B (zh) | 2022-03-11 |
CN109845014A (zh) | 2019-06-04 |
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