JP4559405B2 - パウチ形電池及びその製造方法 - Google Patents
パウチ形電池及びその製造方法 Download PDFInfo
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 8
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- 239000011149 active material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910013716 LiNi Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
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- 229910052718 tin Inorganic materials 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
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
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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
- H01M50/105—Pouches or flexible bags
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
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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
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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
- H01M10/058—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
- 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
- H01M50/183—Sealing members
-
- 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
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
- H01M50/557—Plate-shaped terminals
-
- 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
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/4911—Electric battery cell making including sealing
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/49114—Electric battery cell making including adhesively bonding
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Description
まず、本実施形態に係るパウチ形電池の製造方法では、パウチ外装材に溝43と、この溝43の周辺で向い合う2つのフランジ部42、44と、向い合う2つの延設部46、48とを形成し、このような形状のパウチ外装材40を用意する。また、その一方で電極タブ37、38が形成された2本の電極と、2本の電極間に介在されるセパレーターとを有する巻取型の電極組立体30も用意する。
そして、用意したパウチ外装材40と電極組立体30とを使い、電極タブ37、38が、フランジ部のうちの1つを横切って外部に取り出されるように、溝43に電極組立体30を設置し、設置した電極組立体30を覆うようにして2つの延設部46、48を曲げて、その端部461、481が重なるようにして融着し、前面シール部51を形成する。
さらに、フランジ部42、44と2つの延設部46、48とが重なる部分のうちの少なくとも一方を融着し、融着されていない開放された部分を介して電解液を注入する。
この後、開放された部分をシールして電極タブ37、38に外部電気端子を接続し、初期充電を施すことで本実施形態に係るパウチ形電池の製造方法は終了する。
本発明では、リチウム二次電池を主な実施例として説明してきたが、本発明は、初期の充放電やガス室の形成の例を除いて、全てのパウチ形電池に適用可能である。
37 第1の電極タブ
38 第2の電極タブ
40 パウチ外装材
43 溝
42、44 フランジ部
46、48 延設部
52 シール部
461、481 端部
Claims (14)
- 電極タブを有する第1の電極及び第2の電極と、前記第1の電極及び前記第2の電極との間に介在されるセパレーターとを積層して巻き取られてなる電極組立体と、
前記電極組立体が設置される溝の側壁と、前記溝の底面と、前記溝の周辺の向い合う一対の第1の側辺から延設されたフランジ部とを含む後面部と、
前記溝の周辺の向い合う一対の第2の側辺から延設され、前記溝に設置された前記電極組立体を覆うように曲げられた2つの延設部を含む前面部とを有し、
前記溝をなす4つの前記側壁のうちの前記第2の側辺に連結される2つの前記側壁が曲面からなり、
前記2つの延設部の端部を重ねて融着して前面シール部を形成し、前記フランジ部と前記前面部とが重なる部分を融着して上シール部及び下シール部を形成するパウチ形ケースとを備えるパウチ形電池であって、
前記フランジ部と前記2つの延設部とが重なる部分のうち、開放された部分を介して電解液を注入する段階と、
前記開放された部分をシールする段階と、
前記電極タブに外部電気端子を接続して初期充電を施す段階と
を含むことを特徴とするパウチ形電池の製造方法。 - 前記パウチ形ケースは、前記電極組立体の外周縁を覆うようにして一定の引張力を印加することで形成されたことを特徴とする請求項1に記載のパウチ形電池の製造方法。
- 前記電極タブは前記上シール部を介して取り出され、前記下シール部は前記溝側に折り曲げられ、前記パウチ形ケースの下面に接するようになされることを特徴とする請求項1または請求項2のいずれか1項に記載のパウチ形電池の製造方法。
- 前記前面シール部は、前記2つの延設部の端部を内側の面が相対向するように融着して形成されていることを特徴とする請求項1から請求項3のいずれか1項に記載のパウチ形電池の製造方法。
- 前記前面シール部は、折り曲げられて前記前面部と接するようになされることを特徴とする請求項1から請求項4のいずれか1項に記載のパウチ形電池の製造方法。
- 前記電極タブは互いに離隔された位置から取り出されており、
前記前面シール部は、前記電極タブが取り出されている位置の間に形成されていることを特徴とする請求項1から請求項5 のいずれか1項に記載のパウチ形電池の製造方法。 - 前記電極タブは、対称に配置され、前記前面シール部は前記電極タブの中央に位置することを特徴とする請求項6に記載のパウチ形電池の製造方法。
- 前記溝をなす側壁のうち、下面の側壁には、開口部が形成されていることを特徴とする請求項1から請求項7のいずれか1項に記載のパウチ形電池の製造方法。
- 前記曲面は、前記電極組立体の対応する部分の外周面と同じ形状にすることを特徴とする請求項8に記載のパウチ形電池の製造方法。
- 前記開放された部分をシールする段階では、前記フランジ部のうち前記電極タブが取り出されていない下フランジ部の前記溝から遠い側の端部だけをシールし、
前記初期充電を施す段階の後に前記下フランジ部の前記溝に近い側の端部をシールして下シール部を形成し、前記下シール部より下側の部分を除去する段階を、更に含むことを特徴とする請求項1に記載のパウチ形電池の製造方法。 - 前記パウチ外装材を用意する段階では、前記下フランジ部に前記溝とは別のガス室を設け、
前記下シール部より下側の部分を除去する段階では、前記ガス室が形成された部分を除去することを特徴とする請求項10に記載のパウチ形電池の製造方法。 - 前記前面シール部を形成する段階では、前記2つの端部に対して引張力を印加した状態で融着を施すことを特徴とする請求項10から請求項11のいずれか1項に記載のパウチ形電池の製造方法。
- 前記下シール部より下側の部分を除去する段階に続いて、
前記下シール部を折り曲げて前記パウチ形ケースの下面に接するようにする段階を更に含むことを特徴とする請求項10から請求項12のいずれか1項に記載のパウチ形電池の製造方法。 - 前記前面シール部を形成する段階と、
前記フランジ部と前記2つの延設部とが重なる部分の少なくとも一方を融着する段階とを同時に行うことを特徴とする請求項10から請求項13のいずれか1項に記載のパウチ形電池の製造方法。
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KR1020050134553A KR100824897B1 (ko) | 2005-12-29 | 2005-12-29 | 파우치형 전지 및 그 형성 방법 |
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US (1) | US8936653B2 (ja) |
EP (1) | EP1804313B1 (ja) |
JP (1) | JP4559405B2 (ja) |
KR (1) | KR100824897B1 (ja) |
CN (1) | CN1992381B (ja) |
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KR20060112731A (ko) | 2005-04-27 | 2006-11-02 | 삼성에스디아이 주식회사 | 이차 전지 |
JP4559406B2 (ja) * | 2005-12-29 | 2010-10-06 | 三星エスディアイ株式会社 | パウチ型電池 |
KR100913836B1 (ko) * | 2006-09-18 | 2009-08-26 | 주식회사 엘지화학 | 향상된 안전성의 파우치형 이차전지 |
CN101488566B (zh) * | 2008-01-15 | 2011-08-17 | 财团法人工业技术研究院 | 软包装电池及其气密式导电联接结构与组装方法 |
KR101002468B1 (ko) | 2008-07-01 | 2010-12-17 | 삼성에스디아이 주식회사 | 파우치형 리튬 이차전지 |
KR101042766B1 (ko) * | 2009-02-05 | 2011-06-20 | 삼성에스디아이 주식회사 | 배터리 팩 및 그 제조 방법 |
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KR101441645B1 (ko) * | 2011-08-08 | 2014-09-23 | 주식회사 엘지화학 | 이차전지용 파우치 필름 및 이를 이용한 이차전지 제조 방법 |
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US20070154794A1 (en) | 2007-07-05 |
KR20070071247A (ko) | 2007-07-04 |
EP1804313B1 (en) | 2012-05-16 |
KR100824897B1 (ko) | 2008-04-23 |
EP1804313A2 (en) | 2007-07-04 |
JP2007184267A (ja) | 2007-07-19 |
EP1804313A3 (en) | 2009-10-14 |
CN1992381B (zh) | 2011-04-06 |
US8936653B2 (en) | 2015-01-20 |
CN1992381A (zh) | 2007-07-04 |
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