JP5825436B2 - 電極タブ接合性に優れた電極組立体、これを含む電池セル、デバイス及びその製造方法 - Google Patents
電極タブ接合性に優れた電極組立体、これを含む電池セル、デバイス及びその製造方法 Download PDFInfo
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Description
Claims (17)
- 少なくとも一つの負極、少なくとも一つの正極及び少なくとも一つの分離フィルムを含む電極積層体と、前記電極積層体を電気的に連結するための複数個の正極電極タブ及び複数個の負極電極タブと、を含み、
前記電極タブは、同一極性の電極タブ同士が電気的に連結されるように配置され、同一極性の電極タブのうち一部が同一平面上に重畳されないように配置され、
前記電極タブは、異なる幅を有する2種以上の電極タブを含む、電極組立体。 - 前記電極タブは、相対的に広い幅を有する少なくとも一つ以上の第1電極タブと、前記第1電極タブより狭い幅を有し、重畳されないように配置される少なくとも一つ以上の第2電極タブ及び少なくとも一つ以上の第3電極タブと、を含む、請求項1に記載の電極組立体。
- 前記第2電極タブ及び前記第3電極タブの幅の和が前記第1電極タブの幅より小さい、請求項2に記載の電極組立体。
- 前記電極積層体は、面積が異なる2種類以上の電極ユニットの組み合わせを含む、請求項1から3の何れか1項に記載の電極組立体。
- 前記電極積層体は、面積が異なる2種類の電極ユニットの組み合わせを含む、請求項4に記載の電極組立体。
- 前記電極積層体は、面積が異なる3種類の電極ユニットの組み合わせを含む、請求項4に記載の電極組立体。
- 前記面積が異なる電極ユニット間の境界面において相対的に面積が大きい電極ユニットの負極と相対的に面積が小さい電極ユニットの正極が対向されるように形成される、請求項4から6の何れか1項に記載の電極組立体。
- 前記電極ユニットは、単一電極と、少なくとも一つの正極、少なくとも一つの負極及び少なくとも一つの分離膜を含む少なくとも一つ以上の単位セルと、またはこれらの組み合わせからなる、請求項4から7の何れか1項に記載の電極組立体。
- 前記単位セルは、ゼリーロール型、スタック型及びスタック・アンド・フォールディング型単位セルからなる群より選択される、請求項8に記載の電極組立体。
- 前記電極ユニットを構成する単一電極及び単位セルの一部または全部が少なくとも一つのシート型分離フィルムによって覆われる構造からなる、請求項4から9の何れか1項に記載の電極組立体。
- 請求項1から10のいずれか一項に記載の電極組立体が電池ケースに内蔵される、電池セル。
- 前記電池セルは、リチウムイオン二次電池またはリチウムイオンポリマー二次電池である、請求項11に記載の電池セル。
- 請求項11の電池セルを一つ以上含む、デバイス。
- 前記デバイスは、携帯電話、携帯用コンピュータ、スマートフォン、スマートパッド、ネットブック、LEV(Light Electronic Vehicle)、電気自動車、ハイブリッド電気自動車、プラグ−インハイブリッド電気自動車または電力貯蔵装置である、請求項13に記載のデバイス。
- 少なくとも一つの負極、少なくとも一つの正極及び少なくとも一つの分離フィルムを含む電極積層体と、前記電極積層体を電気的に連結するための複数個の正極電極タブ及び複数個の負極電極タブと、を含み、
前記電極タブを同一極性の電極タブ同士が電気的に連結されるように配置し、同一極性の電極タブのうち一部が同一平面上に重畳されないように配置する段階を含み、
前記電極タブは、異なる幅を有する2種以上の電極タブを含む、電極組立体の製造方法。 - 同一極性の電極タブを接合する段階をさらに含む、請求項15に記載の電極組立体の製造方法。
- 前記接合は、超音波接合方式、レーザー接合方式、抵抗溶接方式またはこれらの組み合わせによって行われる、請求項16に記載の電極組立体の製造方法。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2012-0057583 | 2012-05-30 | ||
KR20120057583 | 2012-05-30 | ||
KR20120127001 | 2012-11-09 | ||
KR10-2012-0127001 | 2012-11-09 | ||
KR1020130061580A KR20130135129A (ko) | 2012-05-30 | 2013-05-30 | 전극탭 접합성이 우수한 전극 조립체, 이를 포함하는 전지셀, 디바이스 및 이의 제조방법 |
KR10-2013-0061580 | 2013-05-30 | ||
PCT/KR2013/004751 WO2013180482A1 (ko) | 2012-05-30 | 2013-05-30 | 전극탭 접합성이 우수한 전극 조립체, 이를 포함하는 전지셀, 디바이스 및 이의 제조방법 |
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JP2014523102A JP2014523102A (ja) | 2014-09-08 |
JP5825436B2 true JP5825436B2 (ja) | 2015-12-02 |
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