JP5943244B2 - 段差を有する電極組立体、それを含む電池セル、電池パック及びデバイス - Google Patents
段差を有する電極組立体、それを含む電池セル、電池パック及びデバイス Download PDFInfo
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Description
10 単一電極
20 負極
21 負極電流集電体
22 負極活物質
25 負極電極タブ
30 正極
31 正極電流集電体
32 正極活物質
33 単面コーティング正極
35 正極電極タブ
41、42 長方形分離膜
45 分離膜
47 空白領域
51 異なる極性の電極が両面に配置された最小単位ユニットセル
52 正極が両面に配置された最小単位ユニットセル
53 負極が両面に配置された最小単位ユニットセル
65、66、67、68 ラミネーション・アンド・スタック型電極ユニット
71 スタック・アンド・フォールディング型電極積層体(Zフォールディング型)
72 スタック・アンド・フォールディング型電極積層体(ワインディング型)
73 ジェリーロール型電極積層体
74 スタック型電極積層体
100 電池セル
120 電池ケース
125 負極リード
135 正極リード
Claims (35)
- 2以上の長方形分離膜により複数の電極ユニットが巻取されて積層された電極積層体を含む電極組立体であって、
前記複数の電極ユニットのうち少なくとも一部の電極ユニットの電極積層方向の両端面には異なる長方形分離膜が配置され、
前記電極積層体は前記長方形分離膜の何れか一つを境界として隣接する電極ユニットに対して面積差を有する電極ユニットが積層されて形成された段差を一つ以上含み、
前記電極ユニットはそれぞれ独立して負極、正極、及び少なくとも一つの負極と少なくとも一つの正極が分離膜が介在された状態で交互に積層されたユニットセルからなる群より選択される少なくとも一つである、電極組立体。 - 前記段差を1つまたは2つ含む、請求項1に記載の電極組立体。
- 前記電極積層体はスタック・アンド・フォールディング型電極積層体である、請求項1または2に記載の電極組立体。
- 前記電極積層体は一方向に巻取されたワインディング型またはジグザグ方向に巻取されたZフォールディング型の電極積層体である、請求項3に記載の電極組立体。
- 前記電極積層体は長方形分離膜の一面または両面に電極ユニットが配置されて巻取されたものである、請求項3に記載の電極組立体。
- 前記段差は、異なる極性の電極が前記長方形分離膜を境界として対面して形成されたものである、請求項1から5の何れか1項に記載の電極組立体。
- 前記異なる極性の電極のうち面積の大きい電極が負極である、請求項6に記載の電極組立体。
- 前記ユニットセルは、それぞれ独立してジェリーロール型ユニットセル、スタック型ユニットセル、ラミネーション・アンド・スタック型ユニットセル及びスタック・アンド・フォールディング型ユニットセルからなる群より選択される少なくとも一つである、請求項1に記載の電極組立体。
- 前記ユニットセルは少なくとも一つの段差を含む電極積層体である、請求項8に記載の電極組立体。
- 前記電極組立体は前記電極積層体の電極積層方向の端の一積層面に積層される単一電極をさらに含む、請求項1から9の何れか1項に記載の電極組立体。
- 前記単一電極は前記電極積層体と段差を形成するものである、請求項10に記載の電極組立体。
- 前記単一電極は前記電極積層体の積層面の外郭に配置された電極と異なる極性を有する電極である、請求項10または11に記載の電極組立体。
- 前記電極組立体は、前記電極積層体の電極積層方向の端の一積層面に積層される電極積層体として、スタック型電極積層体、ラミネーション・アンド・スタック型電極積層体、ジェリーロール型電極積層体、スタック・アンド・フォールディング型電極積層体及びこれらが2以上組み合わさった電極積層体からなる群より選択される少なくとも一つの第2電極積層体をさらに含む、請求項1から12の何れか1項に記載の電極組立体。
- 前記第2電極積層体は段差を有するものである、請求項13に記載の電極組立体。
- 前記電極組立体は、前記電極積層体及び第2電極積層体の何れか一積層面に積層される単一電極をさらに含む、請求項13または14に記載の電極組立体。
- 前記電極ユニットはその厚さが同一または異なる、請求項1から15の何れか1項に記載の電極組立体。
- 前記電極組立体の最外郭に配置される電極は一面が電極無地部である単面コーティング電極であり、前記電極無地部が電極組立体の外部を向くように配置され、前記分離膜が外部に露出する、請求項1から16の何れか1項に記載の電極組立体。
- 前記単面コーティング電極は正極である、請求項17に記載の電極組立体。
- 前記電極組立体の最外郭に配置される電極は負極であり、前記分離膜が外部に露出する、請求項1から17の何れか1項に記載の電極組立体。
- 前記電極積層体は少なくとも一つのコーナー部の形状が異なる電極ユニットを少なくとも一つ含む、請求項1から19の何れか1項に記載の電極組立体。
- 前記電極積層体は少なくとも一つのコーナー部が曲面状である電極ユニットを一つ以上含む、請求項1から20の何れか1項に記載の電極組立体。
- 前記少なくとも一つのコーナー部が曲面状である電極ユニットを2以上含み、少なくとも一つの電極ユニットは他の電極ユニットと曲率が異なる曲面状のコーナー部を有する、請求項20に記載の電極組立体。
- 前記電極積層体は、前記電極ユニットが積層される高さ方向に向かうほど電極ユニットの面積が小さくなるように積層された、請求項1から22の何れか1項に記載の電極組立体。
- 前記電極積層体は各電極ユニットの一コーナー部が一致するように配列されて積層されている、請求項1から23の何れか1項に記載の電極組立体。
- 前記電極積層体は、相互隣接する電極ユニットのうち一つは他の電極ユニットの積層面内に含まれるように積層された、請求項1から23の何れか1項に記載の電極組立体。
- 前記電極積層体は各電極ユニットの中心部が一致するように積層された、請求項25に記載の電極組立体。
- 前記電極ユニットは各電極の極性に対応する電極タブを有し、前記電極タブはその大きさが同一又は異なる、請求項1から26の何れか1項に記載の電極組立体。
- 前記電極タブは電極ユニットの何れか一つの端部または対向する端部に付着された、請求項27に記載の電極組立体。
- 請求項1から28の何れか1項に記載の電極組立体が電池ケースに収納されている電池セル。
- 前記電池ケースはパウチ型ケースである、請求項29に記載の電池セル。
- 前記電池ケースは内部に電極組立体を収納し、電極組立体の形状に対応して段差または傾斜面を有する、請求項30に記載の電池セル。
- 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29から31の何れか1項に記載の電池セル。
- 請求項29から32の何れか1項に記載の電池セルを一つ以上含む、デバイス。
- 前記電池セルの余剰空間にデバイスのシステム部品が位置する、請求項33に記載のデバイス。
- 前記デバイスは携帯電話、携帯用コンピューター、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33または34に記載のデバイス。
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KR10-2012-0058243 | 2012-05-31 | ||
KR20120058243 | 2012-05-31 | ||
KR1020120127028A KR20130135017A (ko) | 2012-05-31 | 2012-11-09 | 단차를 갖는 전극 조립체 및 이를 포함하는 전지셀, 전지팩 및 디바이스 |
KR10-2012-0127028 | 2012-11-09 | ||
KR10-2013-0069034 | 2013-05-31 | ||
KR1020130069034A KR101395016B1 (ko) | 2012-05-31 | 2013-05-31 | 단차를 갖는 전극 조립체 및 이를 포함하는 전지셀, 전지팩 및 디바이스 |
PCT/KR2013/004856 WO2013180541A1 (ko) | 2012-05-31 | 2013-05-31 | 단차를 갖는 전극 조립체 및 이를 포함하는 전지셀, 전지팩 및 디바이스 |
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JP2014526133A (ja) | 2014-10-02 |
KR20130135017A (ko) | 2013-12-10 |
EP2750241A4 (en) | 2015-01-21 |
US20140087224A1 (en) | 2014-03-27 |
KR20130135204A (ko) | 2013-12-10 |
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