KR20200099744A - 전해액 함침 향상을 위한 전지셀 활성화 트레이 및 이를 이용한 전지셀의 제조방법 - Google Patents
전해액 함침 향상을 위한 전지셀 활성화 트레이 및 이를 이용한 전지셀의 제조방법 Download PDFInfo
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- KR20200099744A KR20200099744A KR1020190017731A KR20190017731A KR20200099744A KR 20200099744 A KR20200099744 A KR 20200099744A KR 1020190017731 A KR1020190017731 A KR 1020190017731A KR 20190017731 A KR20190017731 A KR 20190017731A KR 20200099744 A KR20200099744 A KR 20200099744A
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- Prior art keywords
- battery cell
- tray
- battery
- cell activation
- electrolyte
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Abstract
또한, 상기 전지셀 활성화 트레이를 이용하여 전지셀을 제조하는 경우 전지셀의 전해액 주액구가 상부를 향하도록 전지셀 활성화 트레이를 90도 회전시킴으로써, 전지셀 내의 주입된 전해액이 전극조립체로 함침 면적이 증가하는 효과를 발휘한다.
Description
도 2는 본 발명의 일 실시 형태의 트레이 커버 부재를 나타낸 모식도이다.
도 3은 본 발명의 다른 일 실시 형태의 트레이 커버 부재를 나타낸 모식도이다.
도 4는 본 발명의 또 다른 일 실시 형태의 트레이 커버 부재를 나타낸 모식도이다.
도 5는 본 발명의 전지셀 활성화 트레이에 수납되는 파우치형 전지셀을 나타낸 모식도이다.
도 6은 본 발명의 전지셀 활성화 트레이에 파우치형 전지셀이 수납된 형태를 나타낸 모식도이다.
도 7은 도 6의 평면도를 나타낸 모식도이다.
도 8은 본 발명의 전지셀 활성화 트레이가 90도 회전된 것을 나타낸 모식도이다.
도 9는 본 발명에 사용될 수 있는 일반적인 파우치형 이차전지의 구조를 나타낸 모식도이다.
도 10은 본 발명의 전지셀 내의 전해액 주액 방향 및 전해액 함침 방향을 나타낸 모식도이다.
11: 전지 케이스
12: 전극 조립체
13: 전극 리드
14: 가스 포켓
15: 열융착 실링부
16: 전해액 주액구(전해액 주입되는 부분)
A: 전해액 주입 방향
100: 전지셀 활성화 트레이
110: 전지셀 트레이 본체
111: 수용 공간
120: 트레이 커버 부재
121: 개구부
Claims (13)
- 전해액이 주입된 전지셀을 활성화하기 위한 전지셀 활성화 트레이에 있어서,
복수의 전지셀이 수용될 수 있도록 상부가 개방된 각각의 수용 공간이 형성되어 있는 전지셀 트레이 본체; 및
상기 전지셀 트레이의 상부에 장착되는 트레이 커버 부재;를 포함하고,
상기 트레이 커버 부재는, 상기 전지셀 활성화 트레이가 90도 회전하였을 때 상기 전지셀 트레이 본체에 수용된 상기 전지셀이 상기 전지셀 트레이 본체로부터 탈거되는 것을 방지하는 것을 특징으로 하는 전지셀 활성화 트레이.
- 제1항에 있어서,
상기 전지셀은 음극과 분리막, 양극이 교대로 적층된 전극조립체가 전지케이스의 수납부에 밀봉되고, 상기 전극조립체로부터 연장된 전극 리드가 상기 전지케이스의 일변으로부터 돌출되어 있는 형태의 파우치형 전지셀인 것을 특징으로 하는 전지셀 활성화 트레이.
- 제2항에 있어서,
상기 전지케이스는,
전극 리드가 돌출된 일변에 인접하는 변에, 가스 포집을 위한 가스 포켓(gas pocket)이 형성되어 있고,
상기 전지케이스 외주변에는 열융착 실링부가 형성된 것을 특징으로 하는 전지셀 활성화 트레이.
- 제3항에 있어서,
상기 전지셀 활성화 트레이는, 상기 전지셀 트레이 본체에 수용된 상기 전지셀의 전해액 주액구가 상기 전지셀 트레이 본체의 상부 방향을 향하도록 90도 회전되는 것을 특징으로 하는 전지셀 활성화 트레이
- 제 1항에 있어서,
상기 전지셀 활성화 트레이는 90도 회전된 상태에서 이동 가능한 것을 특징으로 하는 전지셀 활성화 트레이.
- 제1항에 있어서,
상기 트레이 커버 부재는 전지셀의 전극 리드가 외부로 돌출 될 수 있도록 개구부가 형성된 것을 특징으로 하는 전지셀 활성화 트레이.
- 제6항에 있어서,
상기 개구부는 사각형 또는 원형 모양의 격자가 규칙적으로 배열된 구조인 것을 특징으로 하는 전지셀 활성화 트레이.
- 제6항에 있어서,
상기 트레이 커버 부재의 상기 개구부의 면적은 트레이 커버와 마주하는 전지셀의 평단면의 면적보다 작은 것을 특징으로 하는 전지셀 활성화 트레이.
- 제8항에 있어서,
상기 트레이 커버 부재의 개구부의 면적은 상기 전극 리드의 단면의 면적에 대응하는 크기를 갖는 것을 특징으로 하는 전지셀 활성화 트레이.
- 제1항에 따른 전지셀 활성화 트레이를 사용한 전지셀의 제조방법으로서,
전해액이 주입된 복수의 전지셀을, 상기 전지셀로부터 돌출된 전극 리드가 상부로 향하도록 전지셀 활성화 트레이에 수납하는 수납 단계;
상기 전지셀 활성화 트레이 내의 복수의 전지셀을 에이징하는 에이징 단계; 및
상기 에이징하는 과정 이후 복수의 전지셀에 충전 및 방전을 수행하는 활성화 단계;를 포함하는 것을 특징으로 하는 전지셀의 제조방법.
- 제10항에 있어서,
상기 수납 단계 이후에, 상기 전지셀의 전해액 주액구가 상부를 향하도록 상기 전지셀 활성화 트레이를 90도 회전시킨 상태로 고정하는 전해액 함침 단계;를 더 포함하는 것을 특징으로 하는 전지셀의 제조방법.
- 제11항에 있어서,
상기 에이징 단계 이후에, 상기 전지셀의 전극 리드가 상부를 향하도록 상기 전지셀 활성화 트레이를 90도 회전하는 것을 특징으로 하는 전지셀의 제조방법.
- 제10항에 있어서,
상기 활성화 단계 이후에 가스 제거(degassing) 단계를 더 포함하는 것을 특징으로 하는 전지셀의 제조방법.
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