JP2006196276A - 非水電解質電池 - Google Patents
非水電解質電池 Download PDFInfo
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- 238000010248 power generation Methods 0.000 claims abstract description 93
- 239000003792 electrolyte Substances 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 11
- 239000012790 adhesive layer Substances 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 19
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000035699 permeability Effects 0.000 abstract description 7
- 238000004806 packaging method and process Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 14
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- 238000010586 diagram Methods 0.000 description 8
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- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000005001 laminate film Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
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- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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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
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
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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
- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
- H01M50/133—Thickness
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/595—Tapes
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
- H01M50/466—U-shaped, bag-shaped or folded
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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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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
【解決手段】 正極板及び負極板がセパレータを介して巻回された発電要素10をケース16に収容してある非水電解質電池において、発電要素10の端面12及び表面の該端面12近傍に、巻回方向に沿うように貼着された絶縁性のテープ14を備える。
【選択図】 図1
Description
(実施例1)
図1は本発明に係るリチウムイオン二次電池(非水電解質電池)の構成の一部を示す模式図であり、図1(a)は角型のリチウムイオン二次電池(以下、電池という)の広い方の側面(以下、長側面という)側から見た模式図であり、図1(b)は狭い方の側面(以下、短側面という)側から見た模式図であり、正極板及び負極板がセパレータを介して巻回された扁平状の発電要素10が、直方体状のアルミ製のケース16に収納されている。
テープ14の貼り方が異なり、ケース16に絶縁シート18を設けていないこと以外は、実施例1と同様の電池を作成した。図5及び図6は発電要素10へのテープ14の貼着方法を示す斜視図である。まず、図5に示すように、発電要素10の端面12からテープ14幅の半分程度がはみ出すように、両長側面及び両短側面の1周にわたってテープ14を貼着する。次に、図6に示すように、発電要素10の端面12からはみ出しているテープ14部分を折り曲げて、端面12に貼着する。ただし、発電要素10は、端面12の全体にテープ14が貼着されている(以下、貼り方βという)。なお、端面12の全体にテープ14が貼着されているため、ケース16に絶縁シート18を設ける必要はない。
テープ14として、基材の厚さが10μm、接着層の厚さが10μm、テープ14全体の厚さが20μmのもの(テープの種類C)を用いた以外は、実施例2と同様の電池を作製した。
テープ14として、基材の厚さが20μm、接着層の厚さが10μm、テープ14全体の厚さが30μmのもの(テープの種類D)を用いた以外は、実施例2と同様の電池を作製した。
テープ14として、基材と、基材裏面の接着層と、基材表面の熱活性接着層とを有し、基材の厚さが10μm、接着層の厚さが5μm、熱活性接着層の厚さが5μm、テープ14全体の厚さが20μmのもの(テープの種類B+)を用いた以外は、実施例2と同様の電池を作製した。図7は、基材表面に熱活性接着層を有するテープを示す模式図である。基材15a裏面の接着層15bは発電要素10の端面12に貼着され、基材15a表面の熱活性接着層15cはケース16内面と対向している。
テープ14として、基材の厚さが5μm、接着層の厚さが5μm、テープ14全体の厚さが10μmのもの(テープの種類A)を用いた以外は、実施例2と同様の電池を作製した。
テープ14として、基材の厚さが15μm、接着層の厚さが15μm、テープ14全体の厚さが30μmのもの(テープの種類E)を用いた以外は、実施例2と同様の電池を作製した。
テープ14として、基材の厚さが30μm、接着層の厚さが10μm、テープ14全体の厚さが40μmのもの(テープの種類F)を用いた以外は、実施例2と同様の電池を作製した。
テープ14の貼り方以外は、実施例2と同様の電池を作成した。図8は発電要素10へのテープ14の貼着方法を示す斜視図である。まず、発電要素10の端面12全体に、端面12よりも大きなテープ14の中央部分を貼着し、次に、図8に示すように、発電要素10の長側面からはみ出しているテープ14端部を折り曲げて、長側面に貼着する(以下、貼り方γという)。
発電要素10の端面12にテープ14を貼着しておらず、ケース16に絶縁シート18を設けていないこと以外は、実施例1と同様の電池を作成した。
12 端面
14、15 テープ
15a 基材
15b 接着層
15c 熱活性接着層
16 ケース
18 絶縁シート
Claims (8)
- 正極板及び負極板がセパレータを介して巻回された発電要素を外装体に収容してある非水電解質電池において、
前記発電要素の端面及び表面の該端面近傍に、巻回方向に沿うように貼着された絶縁性のテープを備えることを特徴とする非水電解質電池。 - 前記発電要素の端面は、前記テープが貼着されていない部分を有することを特徴とする請求項1記載の非水電解質電池。
- 前記外装体は、前記テープと対向する部分に絶縁体を備えることを特徴とする請求項2記載の非水電解質電池。
- 前記テープは、基材と、接着剤を含む接着層とを有し、
前記接着層の厚さは10μm以下であり、テープの厚さは15μm以上30μm以下であることを特徴とする請求項1乃至3の何れかに記載の非水電解質電池。 - 前記テープは、前記端面を挟んで対向するように2枚に分けて貼着されていることを特徴とする請求項1乃至4の何れかに記載の非水電解質電池。
- 前記テープの熱収縮率は、前記セパレータの熱収縮率よりも小さいことを特徴とする請求項1乃至5の何れかに記載の非水電解質電池。
- 前記テープは、接着層とは反対の基材表面に、所定温度以上で接着性が生じる熱活性接着層を有することを特徴とする請求項1乃至5の何れかに記載の非水電解質電池。
- 前記外装体は底及び底外周の側壁を有し、前記発電要素は端面が外装体の側壁と対向するように収容されていることを特徴とする請求項1乃至7の何れかに記載の非水電解質電池。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2005005681A JP4568123B2 (ja) | 2005-01-12 | 2005-01-12 | 非水電解質電池 |
US11/329,507 US20060154138A1 (en) | 2005-01-12 | 2006-01-10 | Nonaqueous electrolyte battery |
CN2006100051066A CN1805204B (zh) | 2005-01-12 | 2006-01-12 | 非水电解质电池 |
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JP2005005681A JP4568123B2 (ja) | 2005-01-12 | 2005-01-12 | 非水電解質電池 |
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JP2006196276A true JP2006196276A (ja) | 2006-07-27 |
JP4568123B2 JP4568123B2 (ja) | 2010-10-27 |
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JP2005005681A Expired - Fee Related JP4568123B2 (ja) | 2005-01-12 | 2005-01-12 | 非水電解質電池 |
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US (1) | US20060154138A1 (ja) |
JP (1) | JP4568123B2 (ja) |
CN (1) | CN1805204B (ja) |
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JP2011071109A (ja) * | 2009-08-27 | 2011-04-07 | Toshiba Corp | 電池 |
JP2011077020A (ja) * | 2009-09-30 | 2011-04-14 | Samsung Sdi Co Ltd | 二次電池及びその製造方法 |
JP2011222469A (ja) * | 2010-04-05 | 2011-11-04 | Samsung Sdi Co Ltd | 二次電池 |
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JP2014096388A (ja) * | 2014-01-24 | 2014-05-22 | Gs Yuasa Corp | 電池 |
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US9034499B2 (en) | 2009-08-27 | 2015-05-19 | Kabushiki Kaisha Toshiba | Battery comprising multiple insulating covers |
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US11552354B2 (en) | 2019-07-08 | 2023-01-10 | Jiangsu Contemporary Amperex Technology Limited | Secondary battery |
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US20060154138A1 (en) | 2006-07-13 |
JP4568123B2 (ja) | 2010-10-27 |
CN1805204B (zh) | 2010-09-22 |
CN1805204A (zh) | 2006-07-19 |
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