JP7258398B2 - 電極及び電極組立体 - Google Patents
電極及び電極組立体 Download PDFInfo
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- JP7258398B2 JP7258398B2 JP2020567520A JP2020567520A JP7258398B2 JP 7258398 B2 JP7258398 B2 JP 7258398B2 JP 2020567520 A JP2020567520 A JP 2020567520A JP 2020567520 A JP2020567520 A JP 2020567520A JP 7258398 B2 JP7258398 B2 JP 7258398B2
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
本出願は、2019年1月21日付韓国特許出願第10-2019-0007597号に基づいた優先権の利益を主張し、当該韓国特許出願の文献に開示された全ての内容は本明細書の一部として含まれる。
10 電極組立体
11 電極タブ
12 電極リード
13 電池ケース
14 絶縁部
101 正極
101 電極
102 負極
102a 負極
1011 正極集電体
1012 正極活物質
1013 正極活物質塗布部
1014 正極活物質未塗布部
1015 正極コーティング部
1016 境界面
1021 負極集電体
1022 負極活物質
1022a 負極活物質
1023 活物質塗布部
1023 負極活物質塗布部
1023a 負極活物質塗布部
1024 活物質未塗布部
1024 負極活物質未塗布部
1024a 負極活物質未塗布部
1025a 負極コーティング部
1026a 境界面
Anode 負極
Claims (10)
- 電極集電体の少なくとも一つの面に電極活物質が塗布された活物質塗布部;
前記活物質塗布部の一側に形成され、前記電極活物質が塗布されていない活物質未塗布部;及び
前記活物質塗布部と前記活物質未塗布部の間にコーティングされ、難燃剤が含まれるコーティング部を含み、
前記電極集電体は網、多孔質体、発泡体、または不織布体で形成されており、前記電極集電体の表面には凹凸が形成されている、電極。 - 前記電極集電体は、正極集電体であり、
前記電極活物質は、正極活物質である、請求項1に記載の電極。 - 前記難燃剤は、
ハロゲン系難燃剤、リン系難燃剤または無機化合物難燃剤を含む、請求項1または2に記載の電極。 - 前記難燃剤は、
Al(OH)3、Mg(OH)2またはBH3O3をさらに含む、請求項3に記載の電極。 - 前記コーティング部は、
前記活物質塗布部及び前記活物質未塗布部の間の境界面を含んでコーティングされる、請求項1~4の何れか一項に記載の電極。 - 前記活物質塗布部と前記活物質未塗布部は、
前記電極集電体の同じ面に形成される、請求項1~5の何れか一項に記載の電極。 - 正極集電体の少なくとも一つの面に正極活物質が塗布された正極活物質塗布部、前記正極活物質塗布部の一側に形成され、前記正極活物質が塗布されていない正極活物質未塗布部、及び前記正極活物質塗布部と前記正極活物質未塗布部の間にコーティングされ、難燃剤が含まれる正極コーティング部を含む正極;
負極集電体の少なくとも一つの面に負極活物質が塗布された負極活物質塗布部、及び前記負極活物質塗布部の一側に形成され、前記負極活物質が塗布されていない負極活物質未塗布部を含む負極;及び
前記正極及び前記負極の間に介在される分離膜を含み、
前記正極集電体及び前記負極集電体は網、多孔質体、発泡体、または不織布体で形成されており、前記正極集電体及び前記負極集電体の表面には凹凸が形成されている、電極組立体。 - 前記負極は、
前記負極活物質塗布部と前記負極活物質未塗布部の間にコーティングされ、難燃剤が含まれる負極コーティング部をさらに含む、請求項7に記載の電極組立体。 - 請求項7または8に記載の電極組立体を含む二次電池。
- 前記正極及び前記負極からそれぞれ一側に突出して形成された複数の電極タブ;
前記電極タブにそれぞれ連結され、前記電極組立体の内部で生成された電気を外部に伝達する複数の電極リード;
前記電極組立体を内部に収納する電池ケース;及び
前記電極リードの周囲を包囲し、前記電池ケースとともにシーリングされ、難燃剤が含まれる絶縁部をさらに含む、請求項9に記載の二次電池。
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