JP6642879B2 - 複数の電極タブが形成されている単位電極を含むパウチ型電池セル - Google Patents
複数の電極タブが形成されている単位電極を含むパウチ型電池セル Download PDFInfo
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- JP6642879B2 JP6642879B2 JP2018527709A JP2018527709A JP6642879B2 JP 6642879 B2 JP6642879 B2 JP 6642879B2 JP 2018527709 A JP2018527709 A JP 2018527709A JP 2018527709 A JP2018527709 A JP 2018527709A JP 6642879 B2 JP6642879 B2 JP 6642879B2
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Classifications
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Description
本発明は、複数の電極タブが形成されている単位電極を含むパウチ型電池セルに関する。
平面上にそれぞれ2×n個(n≧2)の辺を有する正極および負極と、前記正極と負極との間に介在し、正極と負極に対応する形状の分離膜とが積層されている電極アセンブリであって、前記正極の第1辺から第2n辺のうちの奇数の辺にはそれぞれ正極タブが形成されており、前記負極の第1辺から第2n辺のうちの偶数の辺にはそれぞれ負極タブが形成されていて、平面上に正極タブと負極タブが辺に沿って交互的にある構造の電極アセンブリと;
最外郭の電極がそれぞれ位置する電極アセンブリの第1面と第2面、または前記第1面および第2面にそれぞれ直交する電極アセンブリの側面である第3面に位置し、前記正極タブおよび負極タブにそれぞれ電気的に連結されている電極端子と;
前記電極端子の少なくとも一部が外部に露出した状態で電極アセンブリの外面を囲む構造の電池ケースと;を含んでいる。
前記構造の下では、前記電池ケースは、第1面に位置する第1ケースと、前記第2面に位置する第2ケースとからなる。
前記正極は、例えば、正極集電体上に正極活物質、導電剤、およびバインダーの混合物を塗布した後、乾燥して製造され、必要に応じては、前記混合物に充填剤をさらに添加したりする。
20 電池ケース
21 ケース本体
22 蓋
23 収納部
30 電極アセンブリ
31 正極タブ
32 負極タブ
40 電極リード
41 電極リード
100 電池セル
110 電極アセンブリ
111 正極
112 負極
113 正極タブ
114 負極タブ
115 第1折曲部
116 第1折曲部
117 第2折曲部
118 第2折曲部
120 電極端子
121 正極端子
122 負極端子
123 第1面
124 第2面
130 電池ケース
131 第1開口
132 第2開口
200 電池セル
210 電極アセンブリ
211 電極
212 電極
213 正極タブ
214 負極タブ
215 第3折曲部
216 第3折曲部
217 第1接触部
220 電極端子
221 正極端子
222 負極端子
223 第1面
224 第2面
225 第3面
230 電池ケース
231 第1ケース
232 第2ケース
233 蓋部
240 電気絶縁性部材
Claims (18)
- 平面上にそれぞれ2×n個(n≧2)の辺を有する正極および負極と、前記正極と負極との間に介在し、正極と負極に対応する形状の分離膜とが積層されている電極アセンブリであって、前記正極の第1辺から第2n辺のうちの奇数の辺にはそれぞれ正極タブが形成されており、前記負極の第1辺から第2n辺のうちの偶数の辺にはそれぞれ負極タブが形成されていて、平面上に正極タブと負極タブが辺に沿って交互的にある構造の電極アセンブリと;
最外郭の電極がそれぞれ位置する電極アセンブリの第1面と第2面に位置し、前記正極タブおよび負極タブにそれぞれ電気的に連結されている電極端子と;
前記電極端子の少なくとも一部が外部に露出した状態で電極アセンブリの外面を囲む構造の電池ケースと;
を含み、
正極端子は、電極アセンブリの第1面に位置し、負極端子は、第1面の反対面である電極アセンブリの第2面に位置し、
前記電極端子は、第1面および第2面に対応する形状の金属プレートからなり、
前記電極端子は、対応する第1面および第2面の平面積を基準として50%以上〜100%以下の大きさを有し、正極タブおよび負極タブは、第1面および第2面で内側に折曲げられて電極端子の外面に接続されていることを特徴とする電池セル。 - 平面上にそれぞれ2×n個(n≧2)の辺を有する正極および負極と、前記正極と負極との間に介在し、正極と負極に対応する形状の分離膜とが積層されている電極アセンブリであって、前記正極の第1辺から第2n辺のうちの奇数の辺にはそれぞれ正極タブが形成されており、前記負極の第1辺から第2n辺のうちの偶数の辺にはそれぞれ負極タブが形成されていて、平面上に正極タブと負極タブが辺に沿って交互的にある構造の電極アセンブリと;
最外郭の電極がそれぞれ位置する電極アセンブリの第1面と第2面に位置し、前記正極タブおよび負極タブにそれぞれ電気的に連結されている電極端子と;
前記電極端子の少なくとも一部が外部に露出した状態で電極アセンブリの外面を囲む構造の電池ケースと;
を含み、
正極端子は、電極アセンブリの第1面に位置し、負極端子は、第1面の反対面である電極アセンブリの第2面に位置し、
前記電極端子は、第1面および第2面に対応する形状の金属プレートからなり、
前記電極端子は、対応する第1面および第2面の平面積を基準として100%超過〜120%以下の大きさを有し、正極タブおよび負極タブは、第1面および第2面で外側に折曲げられて電極端子の外面に接続されていることを特徴とする電池セル。 - 平面上にそれぞれ2×n個(n≧2)の辺を有する正極および負極と、前記正極と負極との間に介在し、正極と負極に対応する形状の分離膜とが積層されている電極アセンブリであって、前記正極の第1辺から第2n辺のうちの奇数の辺にはそれぞれ正極タブが形成されており、前記負極の第1辺から第2n辺のうちの偶数の辺にはそれぞれ負極タブが形成されていて、平面上に正極タブと負極タブが辺に沿って交互的にある構造の電極アセンブリと;
最外郭の電極がそれぞれ位置する電極アセンブリの第1面および第2面にそれぞれ直交する電極アセンブリの側面である第3面に位置し、前記正極タブおよび前記負極タブにそれぞれ電気的に連結されている電極端子と;
前記電極端子の少なくとも一部が外部に露出した状態で電極アセンブリの外面を囲む構造の電池ケースと;
を含み、
前記電極端子は、少なくとも部分的に第3面の形状に沿って折れているプレートからなることを特徴とする電池セル。 - 前記電極アセンブリは、スタック型構造またはラミネーション/スタック型構造であることを特徴とする請求項1〜3のいずれか1項に記載の電池セル。
- 前記電池ケースは、樹脂外層、遮断性の金属層、および熱溶融性の樹脂シーラント層を含むラミネートシートからなることを特徴とする請求項1〜3のいずれか1項に記載の電池セル。
- 前記正極と負極および分離膜は、平面上にnが3の6角形形状からなることを特徴とする請求項1〜3のいずれか1項に記載の電池セル。
- 前記電極アセンブリは、6角柱形状からなることを特徴とする請求項6に記載の電池セル。
- 前記電池ケースには、正極端子の少なくとも一部が露出する第1開口と、負極端子の少なくとも一部が露出する第2開口とが形成されていることを特徴とする請求項1または2に記載の電池セル。
- 前記第1開口および第2開口は、電極端子の大きさを基準として30%〜90%の大きさとなることを特徴とする請求項8に記載の電池セル。
- 電極タブは、電極から突出し、前記第1面または第2面の方向に折曲げられている第1折曲部と、前記第1折曲部から延びており、第1面または第2面に対応する位置で電極端子方向に折曲げられている第2折曲部とが形成されている構造からなることを特徴とする請求項7に記載の電池セル。
- 前記電極端子は、第1面の方向に形成されている第1電極端子と、第2面の方向に形成されている第2電極端子とからなり、前記第1電極端子と第2電極端子との間には絶縁性部材が介在していることを特徴とする請求項1〜3のいずれか1項に記載の電池セル。
- 前記電極端子は、第3面の形状に対応する四角形プレートからなることを特徴とする請求項3に記載の電池セル。
- 前記電極端子は、電極アセンブリを収容する中空構造の2×n角柱形状からなることを特徴とする請求項12に記載の電池セル。
- 前記電池ケースは、第1面に位置する第1ケースと、前記第2面に位置する第2ケースとからなることを特徴とする請求項12に記載の電池セル。
- 前記第1ケースおよび第2ケースの外周面には、電極端子の両端部の一部をそれぞれ覆い得るように、電極端子方向に折曲げられて突出した蓋部が形成されていることを特徴とする請求項14に記載の電池セル。
- 電極タブは、電極から突出し、第1面または第2面の方向に折曲げられている第3折曲部と、前記第3折曲部から第1面または第2面の方向に延びている第1接触部とが形成されている構造からなることを特徴とする請求項12に記載の電池セル。
- 請求項1〜16のいずれか1項に記載の電池セルを1つ以上含んでいることを特徴とする電池パック。
- 請求項17に記載の電池パックを電源として含んでいることを特徴とするデバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150147175A KR102080284B1 (ko) | 2015-10-22 | 2015-10-22 | 복수의 전극 탭들이 형성되어 있는 단위 전극을 포함하는 파우치형 전지셀 |
KR10-2015-0147175 | 2015-10-22 | ||
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CN108140867B (zh) | 2021-01-05 |
KR20170046938A (ko) | 2017-05-04 |
WO2017069453A1 (ko) | 2017-04-27 |
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JP2018530133A (ja) | 2018-10-11 |
US10784490B2 (en) | 2020-09-22 |
EP3312925A4 (en) | 2018-06-27 |
EP3312925A1 (en) | 2018-04-25 |
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