JP2023551123A - バッテリー、それを含むバッテリーパック及び自動車 - Google Patents
バッテリー、それを含むバッテリーパック及び自動車 Download PDFInfo
- Publication number
- JP2023551123A JP2023551123A JP2023528158A JP2023528158A JP2023551123A JP 2023551123 A JP2023551123 A JP 2023551123A JP 2023528158 A JP2023528158 A JP 2023528158A JP 2023528158 A JP2023528158 A JP 2023528158A JP 2023551123 A JP2023551123 A JP 2023551123A
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- JP
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- Prior art keywords
- battery
- coated
- current collector
- battery housing
- electrode assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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Abstract
Description
前記電極組立体の上部で前記第1非コーティング部の少なくとも一部に結合する第1集電体と、
前記電極組立体及び前記第1集電体を収容するバッテリーハウジングと、
前記第1非コーティング部と前記バッテリーハウジングとの電気的接続を遮断するように、前記第1非コーティング部と前記第1集電体の少なくともいずれか一つと対向する前記バッテリーハウジングの内面と前記第1非コーティング部との間と、前記第1非コーティング部と前記第1集電体の少なくともいずれか一つと対向する前記バッテリーハウジングの内面と前記第1集電体との間と、の少なくともいずれか一箇所に介在されるインシュレータと、を含み得る。
2 パックハウジング
3 バッテリーパック
5 自動車
10 電極組立体
C 巻取中心
11 第1非コーティング部
12 第2非コーティング部
20 バッテリーハウジング
21 ビーディング部
22 クリンピング部
30 第1集電体
40 インシュレータ
41 第1カバー部
42 第2カバー部
50 端子
50a 本体部
50b 外部フランジ部
50c 内部フランジ部
50d 平坦部
60 絶縁ガスケット
61 ガスケット露出部
62 ガスケット挿入部
70 サイドスペーサ
80 第2集電体
81 タブ結合部
82 ハウジング結合部
90 キャップ
100 気密ガスケット
110 下部スペーサ
R ラウンド部
Claims (71)
- 第1電極及び第2電極とこれらの間に介在された分離膜が巻取軸を中心にして巻き取られることでコアと外周面を定義した電極組立体であって、前記第1電極は、巻取方向に沿って活物質層がコーティングされている第1活物質部と、活物質層がコーティングされていない第1非コーティング部と、を含み、前記第1非コーティング部の少なくとも一部が電極タブとして用いられる電極組立体と、
前記電極組立体の上部で前記第1非コーティング部の少なくとも一部に結合する第1集電体と、
前記電極組立体及び前記第1集電体を収容するバッテリーハウジングと、
前記第1非コーティング部と前記バッテリーハウジングとの電気的接続を遮断するように、前記第1非コーティング部と前記第1集電体の少なくともいずれか一つと対向する前記バッテリーハウジングの内面と前記第1非コーティング部との間と、前記第1非コーティング部と前記第1集電体の少なくともいずれか一つと対向する前記バッテリーハウジングの内面と前記第1集電体との間と、の少なくともいずれか一箇所に介在されるインシュレータと、を含む、バッテリー。 - 前記インシュレータは、
前記バッテリーハウジングの内面と対向する第1非コーティング部の端部及び前記第1集電体の表面のいずれか一つをカバーする第1カバー部と、
前記電極組立体の外周面の上端をカバーする第2カバー部と、を含む、請求項1に記載のバッテリー。 - 前記第2カバー部は、
前記第1カバー部の外周縁から垂直下方へ延びた形態を有する、請求項2に記載のバッテリー。 - 前記第1集電体は、
前記電極組立体の上部で前記第1非コーティング部に結合し、前記第1非コーティング部と前記インシュレータとの間に介在される、請求項2または3に記載のバッテリー。 - 前記第1カバー部は、
前記バッテリーハウジングの上端部の内面と対向する前記第1集電体の表面をカバーする、請求項4に記載のバッテリー。 - 前記第1カバー部は、
前記第1集電体と前記バッテリーハウジングの上端部の内面との距離に対応する厚さを有する、請求項4または5に記載のバッテリー。 - 前記第1非コーティング部の少なくとも一部区間は、
前記電極組立体の巻取方向に沿って複数の分節片に分割されている、請求項1に記載のバッテリー。 - 前記複数の分節片は、
前記電極組立体の半径方向に沿って曲げられる、請求項7に記載のバッテリー。 - 前記複数の分節片は、
前記電極組立体の半径方向に沿って多重に重ねられる、請求項7に記載のバッテリー。 - 前記インシュレータは、
前記バッテリーハウジングの内面と対向する第1非コーティング部の複数の分節片が曲げられて形成された曲げ面と、前記バッテリーハウジングの内面との間と、前記第1集電体と前記バッテリーハウジングの内面との間と、の少なくとも一箇所に介在される第1カバー部と、
前記電極組立体の外周面の上端をカバーする第2カバー部と、を含む、請求項8または9に記載のバッテリー。 - 前記第1集電体は、
前記電極組立体の上部で、前記曲げ面の上に結合し、前記曲げ面と前記インシュレータとの間に介在される、請求項10に記載のバッテリー。 - 前記第1カバー部は、
前記バッテリーハウジングの上端部の内面と対向する前記第1集電体の表面をカバーする、請求項11に記載のバッテリー。 - 前記第1カバー部は、
前記第1集電体と前記バッテリーハウジングの上端部の内面との距離に対応する厚さを有する、請求項12に記載のバッテリー。 - 前記第2カバー部は、
前記第1非コーティング部が前記バッテリーハウジングの内周面に向かって露出しないように前記第1非コーティング部の最外郭に露出した側面部全体をカバーする、請求項2から6のいずれか一項に記載のバッテリー。 - 前記第2カバー部の延長長さは、
前記第1非コーティング部の延長長さよりも大きいか、または同一である、請求項2から6のいずれか一項に記載のバッテリー。 - 前記第2カバー部の延長長さは、
前記複数の分節片の間の切断ラインの下端位置から前記複数の分節片の曲げ位置までの長さよりも大きいか、または同一である、請求項10から13のいずれか一項に記載のバッテリー。 - 前記第2カバー部の下端部は、
前記第1非コーティング部の下端部よりも下部に位置する、請求項3から6のいずれか一項に記載のバッテリー。 - 前記インシュレータは、
絶縁ポリマー材質を含む、請求項2から6のいずれか一項に記載のバッテリー。 - 前記インシュレータは、
弾性を有する材質から構成された、請求項2から6のいずれか一項に記載のバッテリー。 - 前記インシュレータは、
前記第1カバー部の中心に所定の直径を有する中心孔を備える、請求項2から6のいずれか一項に記載のバッテリー。 - 前記第1集電体の中心は、
前記電極組立体の巻取中心と同一線上に位置する、請求項20に記載のバッテリー。 - 前記第1集電体の直径は、
前記インシュレータの前記中心孔の直径よりも小さいか、または同一である、請求項21に記載のバッテリー。 - 前記第1集電体の直径は、
前記電極組立体の巻取中心孔の直径よりも大きい、請求項21に記載のバッテリー。 - 前記第1カバー部は、
前記第1非コーティング部の端部と前記バッテリーハウジングの上端部の内面との距離に対応する厚さを有する、請求項22または23に記載のバッテリー。 - 前記第1非コーティング部の少なくとも一部区間は、
前記電極組立体の巻取方向に沿って複数の分節片に分割されている、請求項22から24のいずれか一項に記載のバッテリー。 - 前記複数の分節片は、
前記電極組立体の半径方向に沿って曲げられる、請求項25に記載のバッテリー。 - 前記複数の分節片は、
前記電極組立体の半径方向に沿って多重で重ねられる、請求項25に記載のバッテリー。 - 前記第1カバー部は、
前記バッテリーハウジングの上端部の内面と対向する前記第1非コーティング部の複数の分節片が曲げられて形成された曲げ面と、前記バッテリーハウジングの上端部の内面との間に介在される、請求項26に記載のバッテリー。 - 前記第1カバー部は、
前記曲げ面と前記バッテリーハウジングの上端部の内面との距離に対応する厚さを有する請求項28に記載のバッテリー。 - 前記第1非コーティング部と電気的に接続し、少なくとも一部が前記バッテリーハウジングの上端部に形成された貫通孔によって外部に露出する端子をさらに含む、請求項20から29のいずれか一項に記載のバッテリー。
- 前記端子は、
前記貫通孔に挿入された本体部と、
前記バッテリーハウジングの上端部の外面に露出した前記本体部の一側の周縁から前記外面に沿って延びた外部フランジ部と、
前記バッテリーハウジングの上端部の内面に露出した前記本体部の他側の周縁から前記内面に向かって延びた内部フランジ部と、
前記内部フランジ部の内側に備えられた平坦部と、を含む、請求項30に記載のバッテリー。 - 前記平坦部と前記バッテリーハウジングの上端部の内面が互いに平行である、請求項31に記載のバッテリー。
- 前記平坦部と前記第1集電体が互いに平行である、請求項31に記載のバッテリー。
- 前記端子の本体部、内部フランジ部及び平坦部は、
前記貫通孔から前記バッテリーハウジング内へ挿入される、請求項31に記載のバッテリー。 - 前記内部フランジ部は、
前記バッテリーハウジングの上端部の内面に向かってリベッティングされて固定される、請求項31に記載のバッテリー。 - 前記インシュレータの前記中心孔の直径は、
前記本体部の直径よりも大きいか、または同一である、請求項31から35のいずれか一項に記載のバッテリー。 - 前記インシュレータの前記中心孔の直径は、
前記内部フランジ部の直径よりも大きいか、または同一である、請求項31から35のいずれか一項に記載のバッテリー。 - 前記端子の本体部は、
前記インシュレータの前記中心孔を貫通する、請求項31から37のいずれか一項に記載のバッテリー。 - 前記端子の平坦部は、
前記インシュレータの前記中心孔を貫通し、前記第1集電体と電気的に結合する、請求項31から38のいずれか一項に記載のバッテリー。 - 前記端子の平坦部は、
前記第1集電体と溶接によって結合する、請求項39に記載のバッテリー。 - 前記バッテリーは、
前記バッテリーハウジングと前記端子との間に介在され、前記バッテリーハウジングと前記端子の電気的接続を遮断する絶縁ガスケットをさらに含む、請求項31から40のいずれか一項に記載のバッテリー。 - 前記絶縁ガスケットは、
前記インシュレータと接続されて一体に形成された、請求項41に記載のバッテリー。 - 前記電極組立体の外周面の少なくとも一部をカバーし、前記バッテリーハウジングの内周面と接触するサイドスペーサをさらに含む、請求項2から42のいずれか一項に記載のバッテリー。
- 前記サイドスペーサは、
前記電極組立体の外周に沿って前記電極組立体の外周面の少なくとも一部をカバーする、請求項43に記載のバッテリー。 - 前記サイドスペーサは、
前記電極組立体の外周面と前記バッテリーハウジングの内周面との距離に対応する厚さを有する、請求項43または44に記載のバッテリー。 - 前記サイドスペーサは、
前記インシュレータと接続して一体に形成された、請求項43から45のいずれか一項に記載のバッテリー。 - 前記サイドスペーサは、
絶縁ポリマー材質を含む、請求項43から46のいずれか一項に記載のバッテリー。 - 前記サイドスペーサは、
弾性を有する材質から構成された、請求項43から46のいずれか一項に記載のバッテリー。 - 前記第2電極は、
巻取方向に沿って活物質層がコーティングされている第2活物質部と、活物質がコーティングされていない第2非コーティング部と、を含み、前記第2非コーティング部の少なくとも一部は、電極タブとして用いられる、請求項1から48のいずれか一項に記載のバッテリー。 - 前記電極組立体の下部で前記第2非コーティング部と結合する第2集電体をさらに含む、請求項49に記載のバッテリー。
- 前記バッテリーハウジングは、
下端に形成された開放部に隣接する端部に形成され、内側に向かって圧入されたビーディング部と、
前記ビーディング部よりも前記開放部に向かう側に形成され、前記開放部に向かって延びて曲げられたクリンピング部と、を含む、請求項50に記載のバッテリー。 - 前記第2集電体は、
前記第2非コーティング部と結合する少なくとも一つのタブ結合部と、
前記バッテリーハウジングの内面の前記ビーディング部に電気的に結合する少なくとも一つのハウジング結合部と、を含む、請求項51に記載のバッテリー。 - 前記ハウジング結合部は、
前記クリンピング部によって押圧固定される、請求項52に記載のバッテリー。 - 前記ハウジング結合部は、
前記ビーディング部に溶接によって結合する、請求項52に記載のバッテリー。 - 前記バッテリーハウジングの開放部をカバーするキャップをさらに含む、請求項50から54のいずれか一項に記載のバッテリー。
- 前記キャップと前記第2集電体との間に介在され、前記電極組立体の動きを防止するように構成された下部スペーサをさらに含む、請求項55に記載のバッテリー。
- 前記下部スペーサは、
前記第2集電体と前記キャップとの距離に対応する高さを有する、請求項56に記載のバッテリー。 - 前記下部スペーサは、
絶縁ポリマー材質を含む、請求項56または57に記載のバッテリー。 - 前記下部スペーサは、
弾性を有する材質から構成された、請求項56または57に記載のバッテリー。 - 前記第1カバー部の厚さは、
前記第2カバー部の厚さと異なる、請求項2から6のいずれか一項に記載のバッテリー。 - 前記第2カバー部の厚さは、
前記第1カバー部の厚さよりも小さい、請求項2から6のいずれか一項に記載のバッテリー。 - 前記第1カバー部は、
前記第1カバー部の外周縁で所定の曲率半径を有するラウンド部を備える、請求項2から6のいずれか一項に記載のバッテリー。 - 前記ラウンド部は、
前記第1カバー部の上面と前記第2カバー部の側面の交差位置に形成される、請求項62に記載のバッテリー。 - 前記ラウンド部の曲率半径は、
前記バッテリーハウジングの上端部の内面と前記バッテリーハウジングの側面の交差位置に形成された曲率半径よりも小さいか、または同一である、請求項62または63に記載のバッテリー。 - 前記ラウンド部は、
前記バッテリーハウジングの内面と隙間なく密着する、請求項64に記載のバッテリー。 - 前記第1カバー部及び前記第2カバー部は、一体に形成された、請求項2から6のいずれか一項に記載のバッテリー。
- 前記第1カバー部及び前記第2カバー部は別に形成されて結合した構造である、請求項2に記載のバッテリー。
- 前記絶縁ガスケットは、
前記外部フランジ部と前記バッテリーハウジングとの間に介在されたガスケット露出部と、
前記内部フランジ部と前記バッテリーハウジングとの間に介在されたガスケット挿入部と、を含み、
前記ガスケット露出部と前記ガスケット挿入部は、位置によって厚さが異なる、請求項41または42に記載のバッテリー。 - 前記第1カバー部の前記中心孔の周囲には、前記中心孔よりも小さい直径を有する複数の孔がさらに形成されている、請求項20から29のいずれか一項に記載のバッテリー。
- 複数の請求項1から69のいずれか一項に記載のバッテリーと、
複数の前記バッテリーを収容するパックハウジングと、を含む、バッテリーパック。 - 請求項70に記載のバッテリーパックを含む、自動車。
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