JP6249509B2 - 曲がった形状の電極積層体及びそれを含む電池セル - Google Patents
曲がった形状の電極積層体及びそれを含む電池セル Download PDFInfo
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- 238000000926 separation method Methods 0.000 claims description 75
- 239000012528 membrane Substances 0.000 claims description 70
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 229910001416 lithium ion Inorganic materials 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
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- 229920002472 Starch Polymers 0.000 claims description 2
- 229920001973 fluoroelastomer Polymers 0.000 claims description 2
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- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 2
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- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 2
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- 239000011347 resin Substances 0.000 claims description 2
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- 229920005608 sulfonated EPDM Polymers 0.000 claims description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 7
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- WNEODWDFDXWOLU-QHCPKHFHSA-N 3-[3-(hydroxymethyl)-4-[1-methyl-5-[[5-[(2s)-2-methyl-4-(oxetan-3-yl)piperazin-1-yl]pyridin-2-yl]amino]-6-oxopyridin-3-yl]pyridin-2-yl]-7,7-dimethyl-1,2,6,8-tetrahydrocyclopenta[3,4]pyrrolo[3,5-b]pyrazin-4-one Chemical compound C([C@@H](N(CC1)C=2C=NC(NC=3C(N(C)C=C(C=3)C=3C(=C(N4C(C5=CC=6CC(C)(C)CC=6N5CC4)=O)N=CC=3)CO)=O)=CC=2)C)N1C1COC1 WNEODWDFDXWOLU-QHCPKHFHSA-N 0.000 description 1
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- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
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Description
1つ以上の正極、1つ以上の負極、及び1つ以上の分離膜を含み、電極のうちの1つ以上は、片面又は両面に分離膜が接合(laminate)されており、正極、負極及び分離膜は、正極と負極との間に分離膜が介在するように積層されており、正極、負極及び分離膜の積層面は曲面(curved surface)を含むことを特徴とする。前記電極積層体は、ジェリーロール型電極積層体及びスタックアンドフォールディング型電極積層体とは異なり、正極、負極及び分離膜のそれぞれの一端と他端は互いに交差しない。
101 正極
101a 正極タブ
102 分離膜
103 負極
103a 負極タブ
110 第1の具現例
120 第2の具現例
130 第3の具現例
140 第4の具現例
150 第5の具現例
T 固定部材
Claims (17)
- 1つ以上の正極、1つ以上の負極、及び1つ以上の分離膜を含み、正極と負極との間に分離膜が介在した状態で正極、分離膜及び負極が互いに接合されている、1つ又はそれ以上の電極群、及び、正極及び負極のいずれか1つ、及び1つ又は2つ以上の分離膜を含み、正極及び負極のいずれか1つと分離膜とが互いに接合されている、1つ又はそれ以上の電極素子を含む電極積層体であって、
正極、負極及び分離膜の積層面が曲面を含み、
前記電極群と電極素子との間に接着面が形成されており、
前記接着面に塗布されている感圧接着剤の量が、前記正極又は負極と前記分離膜との接合面に塗布されている感圧接着剤の量より多く、
前記感圧接着剤が、ポリフッ化ビニリデン、ポリビニルアルコール、カルボキシメチルセルロース(CMC)、澱粉、ヒドロキシプロピルセルロース、再生セルロース、ポリビニルピロリドン、テトラフルオロエチレン、ポリエチレン、ポリプロピレン、エチレン−プロピレン−ジエンターポリマー(EPDM)、スルホン化EPDM、スチレンブタジエンゴム、及びフッ素ゴムからなる群から選択される1つまたは2つ以上の組み合わせであることを特徴とする、電極積層体。 - 1つ以上の非曲面を含むことを特徴とする、請求項1に記載の電極積層体。
- 前記積層面に平行でない電極積層体の側面が、1つ以上の非曲面を含むことを特徴とする、請求項1に記載の電極積層体。
- 電極端子が非曲面に形成されていることを特徴とする、請求項1に記載の電極積層体。
- 一つの非曲面に正極端子と負極端子がいずれも形成されていることを特徴とする、請求項4に記載の電極積層体。
- 一つの非曲面に正極端子が形成されており、他の一つの非曲面に負極端子が形成されていることを特徴とする、請求項4に記載の電極積層体。
- 前記電極群が、最外側電極の極性が互いに同一または異なることを特徴とする、請求項1に記載の電極積層体。
- 前記最外側電極のうちの1つ以上が、分離膜間に介在した状態で分離膜と接合されていることを特徴とする、請求項7に記載の電極積層体。
- 正極、負極及び分離膜のそれぞれの一端と他端が互いに交差しないことを特徴とする、請求項1に記載の電極積層体。
- 前記電極積層体が、接合面の結合力が接着面の結合力と同一であることを特徴とする、請求項1に記載の電極積層体。
- 前記電極積層体が固定部材をさらに含むことを特徴とする、請求項1に記載の電極積層体。
- 請求項1に記載の電極積層体が電解質と共に電池ケースに内蔵されていることを特徴とする、電池セル。
- 前記電池ケースが、金属缶、または、金属層と樹脂層を含むラミネートシートのパウチ型電池ケースであることを特徴とする、請求項12に記載の電池セル。
- 前記電池セルが、リチウムイオンポリマー電池、リチウムイオン電池、またはリチウムポリマー電池であることを特徴とする、請求項13に記載の電池セル。
- 請求項12に記載の電池セル及び保護回路モジュール(PCM)を含み、前記保護回路モジュールが、電池セルの電極端子に接続されることを特徴とする、電池パック。
- 請求項15に記載の電池パックを含むことを特徴とする、デバイス。
- 前記デバイスが、スマートフォン、携帯電話、ノートブック、タブレットPC、時計、テレビ又は眼鏡であることを特徴とする、請求項16に記載のデバイス。
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JP6736667B2 (ja) | 2016-03-31 | 2020-08-05 | エルジー・ケム・リミテッド | 高柔軟性の電極アセンブリおよびこれを含む電池セル |
US9837682B1 (en) | 2016-08-29 | 2017-12-05 | Microsoft Technology Licensing, Llc | Variable layer thickness in curved battery cell |
US10505232B2 (en) | 2016-12-30 | 2019-12-10 | Microsoft Licensing Technology, LLC | Stacked, rolled-electrode battery cell with y-axis bending |
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US20160268625A1 (en) | 2016-09-15 |
CN105229838B (zh) | 2018-01-19 |
EP2985831A1 (en) | 2016-02-17 |
WO2015016463A1 (ko) | 2015-02-05 |
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