JP2013239376A - 蓄電素子及び蓄電素子の製造方法 - Google Patents
蓄電素子及び蓄電素子の製造方法 Download PDFInfo
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- 238000003860 storage Methods 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title description 8
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- 229920005989 resin Polymers 0.000 description 6
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- 230000005611 electricity Effects 0.000 description 5
- 238000010292 electrical insulation Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
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- 238000000034 method Methods 0.000 description 4
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
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- 229910001416 lithium ion Inorganic materials 0.000 description 3
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- 238000005452 bending Methods 0.000 description 2
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- 238000007599 discharging Methods 0.000 description 2
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- 230000001105 regulatory effect Effects 0.000 description 2
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- 230000008961 swelling Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Abstract
【解決手段】 本発明に係る蓄電素子は、正極板と負極板とが互いに絶縁された状態で巻回された扁平状の電極体であって、中心線を挟んで対向する一対の折り返し部と、該一対の折り返し部間に位置する平坦部とを有する電極体と、該電極体を収容するケースとを備え、該ケースは、前記電極体における前記折り返し部と前記平坦部との境界領域に外方から直接的又は間接的に接触する凸部を内面に有し、前記平坦部と直交する方向における前記折り返し部の最大外寸が、前記凸部の接触する位置における前記平坦部と直交する方向の前記境界領域の外寸よりも大きい。
【選択図】図1
Description
また、本発明の他態様として、前記電極体は、第一端部に設けられる正極リード部と、前記第一端部と反対側の第二端部に設けられる負極リード部とを備え、前記凸部は、前記平坦部における前記正極リード部と前記負極リード部との間に直接的又は間接的に接触する、ようにし得る。
本発明の蓄電素子の製造方法は、正極板と負極板とが互いに絶縁された状態で巻回された扁平状の電極体であって、中心線を挟んで対向する一対の折り返し部と、該一対の折り返し部間に位置する平坦部とを有する電極体をケースに収容する電極体収容工程と、前記電極体における前記折り返し部と前記平坦部との境界領域に外方から直接的又は間接的に接触する凸部を前記ケースの内面に形成する凸部形成工程とを備える。
また、本発明の蓄電素子の製造方法の一態様として、前記凸部形成工程は、前記電極体収容工程の後に行われる、ようにし得る。
Claims (10)
- 正極板と負極板とが互いに絶縁された状態で巻回された扁平状の電極体であって、中心線を挟んで対向する一対の折り返し部と、該一対の折り返し部間に位置する平坦部とを有する電極体と、
該電極体を収容するケースとを備え、
該ケースは、前記電極体における前記折り返し部と前記平坦部との境界領域に外方から直接的又は間接的に接触する凸部を内面に有し、
前記平坦部と直交する方向における前記折り返し部の最大外寸が、前記凸部の接触する位置における前記平坦部と直交する方向の前記境界領域の外寸よりも大きい
蓄電素子。 - 前記ケースは、凹部を外面に有し、前記凸部は、該凹部の形成に伴って形成される
請求項1に記載の蓄電素子。 - 前記凸部は、前記電極体の前記中心線と同方向に延びて形成されている
請求項1又は請求項2に記載の蓄電素子。 - 前記ケースの内面に固定され、前記電極体を支持する集電体をさらに備え、
前記凸部は、前記一対の折り返し部のうちの前記集電体が固定されている側の折り返し部と前記平坦部との境界領域に対応して形成されている
請求項1乃至請求項3の何れか1項に記載の蓄電素子。 - 前記凸部の接触する前記境界領域と連続した前記折り返し部の頂部は、前記ケースの内面に直接的又は間接的に接触している
請求項1乃至請求項4の何れか1項に記載の蓄電素子。 - 前記凸部は、前記境界領域における前記平坦部に外方から直接的又は間接的に接触する
請求項1乃至請求項5の何れか1項に記載の蓄電素子。 - 前記凸部は、該凸部と前記折り返し部の曲率中心との前記平坦部に沿った方向における距離が前記折り返し部の内側最内周の曲率半径以上となる位置に形成されている
請求項6に記載の蓄電素子。 - 前記凸部は、前記折り返し部の一端部と前記平坦部との境界領域に対応して形成された第一凸部と、前記折り返し部の他端部と前記平坦部との境界領域に対応して形成された第二凸部とを含む
請求項1乃至請求項7の何れか1項に記載の蓄電素子。 - 前記凸部は、前記一対の折り返し部と前記平坦部との間にある二つの境界領域のそれぞれに対応して設けられている
請求項1乃至請求項8の何れか1項に記載の蓄電素子。 - 前記正極板及び前記負極板は、少なくとも前記境界領域における前記凸部と対応する位置で密に積層されている
請求項1乃至請求項9の何れか1項に記載の蓄電素子。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012112433A JP6052574B2 (ja) | 2012-05-16 | 2012-05-16 | 蓄電素子及び蓄電素子の製造方法 |
| DE102013208772A DE102013208772A1 (de) | 2012-05-16 | 2013-05-13 | Elektrisches speichergerät und verfahren zur herstellung desselben |
| US13/893,206 US20130309533A1 (en) | 2012-05-16 | 2013-05-13 | Electric storage device, and method for producing the same |
| CN201310174962.4A CN103427052B (zh) | 2012-05-16 | 2013-05-13 | 蓄电元件及蓄电元件的制造方法 |
| KR1020130055022A KR102062564B1 (ko) | 2012-05-16 | 2013-05-15 | 축전 소자 및 축전 소자의 제조 방법 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013246919A (ja) * | 2012-05-24 | 2013-12-09 | Hitachi Vehicle Energy Ltd | 角形二次電池 |
| JP2018049708A (ja) * | 2016-09-20 | 2018-03-29 | 株式会社Gsユアサ | 蓄電装置及び蓄電装置の製造方法 |
| JP2021082477A (ja) * | 2019-11-19 | 2021-05-27 | トヨタ自動車株式会社 | 組電池 |
| JP2022119292A (ja) * | 2021-02-04 | 2022-08-17 | プライムプラネットエナジー&ソリューションズ株式会社 | 二次電池 |
| JP2024545874A (ja) * | 2022-08-11 | 2024-12-13 | エルジー エナジー ソリューション リミテッド | 安全性が改善された角型二次電池 |
| WO2025063110A1 (ja) | 2023-09-22 | 2025-03-27 | 株式会社Gsユアサ | 蓄電素子及び蓄電素子の製造方法 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6519161B2 (ja) * | 2014-01-17 | 2019-05-29 | 株式会社Gsユアサ | 蓄電素子 |
| KR102249892B1 (ko) * | 2014-10-08 | 2021-05-10 | 삼성에스디아이 주식회사 | 이차 전지 |
| JP6137556B2 (ja) | 2014-11-04 | 2017-05-31 | トヨタ自動車株式会社 | 非水電解液二次電池およびその製造方法 |
| CN115398705A (zh) | 2020-04-30 | 2022-11-25 | 株式会社村田制作所 | 二次电池 |
| KR20230165448A (ko) | 2022-05-27 | 2023-12-05 | 주식회사 엘지에너지솔루션 | 안전성이 향상된 이차전지 |
| CN118523013A (zh) * | 2024-03-26 | 2024-08-20 | 宁德新能源科技有限公司 | 二次电池及电化学装置 |
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2013
- 2013-05-13 US US13/893,206 patent/US20130309533A1/en not_active Abandoned
- 2013-05-13 CN CN201310174962.4A patent/CN103427052B/zh active Active
- 2013-05-13 DE DE102013208772A patent/DE102013208772A1/de not_active Ceased
- 2013-05-15 KR KR1020130055022A patent/KR102062564B1/ko active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013246919A (ja) * | 2012-05-24 | 2013-12-09 | Hitachi Vehicle Energy Ltd | 角形二次電池 |
| JP2018049708A (ja) * | 2016-09-20 | 2018-03-29 | 株式会社Gsユアサ | 蓄電装置及び蓄電装置の製造方法 |
| JP2021082477A (ja) * | 2019-11-19 | 2021-05-27 | トヨタ自動車株式会社 | 組電池 |
| JP2022119292A (ja) * | 2021-02-04 | 2022-08-17 | プライムプラネットエナジー&ソリューションズ株式会社 | 二次電池 |
| US11990628B2 (en) | 2021-02-04 | 2024-05-21 | Prime Planet Energy & Solutions, Inc. | Secondary battery |
| JP2024545874A (ja) * | 2022-08-11 | 2024-12-13 | エルジー エナジー ソリューション リミテッド | 安全性が改善された角型二次電池 |
| WO2025063110A1 (ja) | 2023-09-22 | 2025-03-27 | 株式会社Gsユアサ | 蓄電素子及び蓄電素子の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103427052B (zh) | 2017-06-23 |
| KR102062564B1 (ko) | 2020-01-06 |
| CN103427052A (zh) | 2013-12-04 |
| KR20130128344A (ko) | 2013-11-26 |
| JP6052574B2 (ja) | 2016-12-27 |
| US20130309533A1 (en) | 2013-11-21 |
| DE102013208772A1 (de) | 2013-11-21 |
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