KR100749198B1 - 비수전해질 전지, 전지 팩 및 자동차 - Google Patents
비수전해질 전지, 전지 팩 및 자동차 Download PDFInfo
- Publication number
- KR100749198B1 KR100749198B1 KR1020060063573A KR20060063573A KR100749198B1 KR 100749198 B1 KR100749198 B1 KR 100749198B1 KR 1020060063573 A KR1020060063573 A KR 1020060063573A KR 20060063573 A KR20060063573 A KR 20060063573A KR 100749198 B1 KR100749198 B1 KR 100749198B1
- Authority
- KR
- South Korea
- Prior art keywords
- negative electrode
- nonaqueous electrolyte
- positive electrode
- electrolyte battery
- exterior member
- Prior art date
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- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- OCDVSJMWGCXRKO-UHFFFAOYSA-N titanium(4+);disulfide Chemical class [S-2].[S-2].[Ti+4] OCDVSJMWGCXRKO-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
Description
Claims (20)
- 필름으로 형성되며, 외장 부재의 하나 이상의 연부상에 형성된 열밀봉부를 포함하는 외장 부재;상기 외장 부재 내에 제공된 비수전해질;상기 외장 부재 내에 제공된 정극;상기 외장 부재 내에 제공되고, 리튬 이온 흡장 전위가 0.4 V(vs. Li/Li+) 이상인 부극 활성 물질을 함유하는 부극;상기 외장 부재의 상기 열밀봉부를 통해서 상기 외장 부재의 외부로 인출되는 선단부를 포함하고, 밀봉부가 열밀봉부에 위치하는, 알루미늄 또는 알루미늄 합금으로 제조된 정극 단자;상기 정극 단자의 상기 밀봉부의 하나 이상의 부분 상에 형성된, 요철 구조를 갖는 제1 알루미나층;상기 외장 부재의 상기 열밀봉부를 통해 상기 외장 부재의 외부로 인출되는 선단부를 포함하고, 밀봉부가 열밀봉부에 위치하는, 알루미늄 또는 알루미늄 합금으로 제조된 부극 단자; 및상기 부극 단자의 상기 밀봉부의 하나 이상의 부분 상에 형성된, 요철 구조를 갖는 제2 알루미나층을 포함하고,상기 정극 단자 및 부극 단자는 하기 수학식 1을 만족시키는 단면적(S)(㎟) 을 갖는 비수전해질 전지.<수학식 1>0.6Q≤S≤2Q상기 식에서, Q는 비수전해질 전지의 정격 용량(Ah)을 의미하며, 1 내지 50 Ah의 범위내이다.
- 제1항에 있어서, 정극 단자 및 부극 단자가 하기 수학식 1a를 만족시키는 단면적(S)(㎟)을 갖는 것인 비수전해질 전지.<수학식 1a>1.2Q≤S≤1.8Q상기 식에서, Q는 비수전해질 전지의 정격 용량(Ah)을 의미하며, 1 내지 50 Ah의 범위내이다.
- 제1항에 있어서, 정격 용량(Q)이 3 내지 5 Ah의 범위내인 비수전해질 전지.
- 제1항에 있어서, 정극 단자 및 부극 단자가 하기 수학식 2를 만족시키는 두께(t)(㎜)를 갖는 것인 비수전해질 전지.<수학식 2>0.001Q+0.1≤t≤0.02Q+1.0상기 식에서, Q는 비수전해질 전지의 정격 용량(Ah)을 의미하며, 1 내지 50 Ah의 범위내이다.
- 제1항에 있어서, 정극 단자 및 부극 단자가 하기 수학식 3을 만족시키는 폭(X)(㎜)을 갖는 것인 비수전해질 전지.<수학식 3>1.2Q≤X≤13Q상기 식에서, Q는 비수전해질 전지의 정격 용량(Ah)을 의미하며, 1 내지 50 Ah의 범위내이다.
- 제1항에 있어서, 외장 부재가 하기 수학식 4를 만족시키는, 열밀봉부의 외연부와 내연부 사이의 거리(Y)(㎜)를 갖는 것인 비수전해질 전지.<수학식 4>0.1Q+2≤Y≤0.4Q+10상기 식에서, Q는 비수전해질 전지의 정격 용량(Ah)을 의미하며, 1 내지 50 Ah의 범위내이다.
- 제1항에 있어서,열밀봉부가 외장 부재의 한 연부에 형성된 제1 밀봉부 및 상기 연부의 반대측에 위치하는 다른 연부에 형성된 제2 밀봉부를 포함하고;부극 단자의 선단부가 상기 제1 밀봉부를 통해 외장 부재의 외부로 인출되 고;정극 단자의 선단부가 상기 제2 밀봉부를 통해 외장 부재의 외부로 인출된 비수전해질 전지.
- 제1항에 있어서, 외장 부재를 형성하는 필름이 열가소성 수지층, 수지층, 및 상기 열가소성 수지층과 수지층 사이에 배열된 알루미늄층 또는 알루미늄 합금층을 포함하는 것인 비수전해질 전지.
- 제1항에 있어서, 제1 알루미나층 및 제2 알루미나층을 피복하는 열가소성 필름을 더 포함하는 비수전해질 전지.
- 제1항에 있어서, 정극이 LiaNibCocMndO2(단, 몰비 a, b, c 및 d는 0≤a≤1.1, 0.1≤b≤0.5, 0≤c≤0.9, 0.1≤d≤0.5임)로 나타내지는 화합물을 함유하는 것인 비수전해질 전지.
- 제1항에 있어서, 부극 활성 물질이 티탄-함유 금속 복합 산화물을 포함하는 것인 비수전해질 전지.
- 제11항에 있어서, 티탄-함유 금속 복합 산화물이 스피넬형 리튬-티탄 산화물 을 포함하는 것인 비수전해질 전지.
- 제11항에 있어서, 티탄-함유 금속 복합 산화물이 P, V, Sn, Cu, Ni 및 Fe로 이루어지는 군에서 선택되는 1종 이상의 원소를 함유하는 것인 비수전해질 전지.
- 제1항에 있어서, 부극 활성 물질이 평균 입경이 1 ㎛ 이하인 입자로 형성된 것인 비수전해질 전지.
- 제1항에 있어서, 부극이 알루미늄박 또는 알루미늄 합금박으로 형성된 부극 집전체를 포함하는 것인 비수전해질 전지.
- 제15항에 있어서, 알루미늄박 및 알루미늄 합금박의 각각의 평균 결정 입도가 50 ㎛ 이하인 비수전해질 전지.
- 제1항에 있어서, 비수전해질이 프로필렌 카르보네이트, 에틸렌 카르보네이트, 디에틸 카르보네이트 및 γ-부티로락톤으로 이루어지는 군으로부터 선택되는 2종 이상의 비수성 용매를 포함하는 것인 비수전해질 전지.
- 필름으로 형성되며, 외장 부재의 하나 이상의 연부상에 형성된 열밀봉부를 포함하는 외장 부재;상기 외장 부재 내에 제공된 비수전해질;상기 외장 부재 내에 제공된 정극;상기 외장 부재 내에 제공되고, 리튬 이온 흡장 전위가 0.4 V(vs. Li/Li+) 이상인 부극 활성 물질을 함유하는 부극;상기 외장 부재의 상기 열밀봉부를 통해서 상기 외장 부재의 외부로 인출되는 선단부를 포함하고, 밀봉부가 열밀봉부에 위치하는, 알루미늄 또는 알루미늄 합금으로 제조된 정극 단자;상기 정극 단자의 상기 밀봉부의 하나 이상의 부분 상에 형성된, 요철 구조를 갖는 제1 알루미나층;상기 외장 부재의 상기 열밀봉부를 통해 상기 외장 부재의 외부로 인출되는 선단부를 포함하고, 밀봉부가 열밀봉부에 위치하는, 알루미늄 또는 알루미늄 합금으로 제조된 부극 단자; 및상기 부극 단자의 상기 밀봉부의 하나 이상의 부분 상에 형성된, 요철 구조를 갖는 제2 알루미나층을 포함하고,상기 정극 단자 및 부극 단자는 하기 수학식 1을 만족시키는 단면적(S)(㎟)을 갖는 비수전해질 전지를 포함하는 전지 팩.<수학식 1>0.6Q≤S≤2Q상기 식에서, Q는 비수전해질 전지의 정격 용량(Ah)을 의미하며, 1 내지 50 Ah의 범위내이다.
- 제18항에 있어서, 비수전해질 전지의 전압을 검지하는 보호 회로를 더 포함하는 전지 팩.
- 제18항에 기재된 전지 팩을 구비한 자동차.
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