JP6698279B2 - 筒型電池 - Google Patents
筒型電池 Download PDFInfo
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- JP6698279B2 JP6698279B2 JP2015073854A JP2015073854A JP6698279B2 JP 6698279 B2 JP6698279 B2 JP 6698279B2 JP 2015073854 A JP2015073854 A JP 2015073854A JP 2015073854 A JP2015073854 A JP 2015073854A JP 6698279 B2 JP6698279 B2 JP 6698279B2
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- 230000002093 peripheral effect Effects 0.000 claims description 52
- 238000007789 sealing Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 8
- 238000007872 degassing Methods 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 4
- 238000002788 crimping Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 20
- 238000000465 moulding Methods 0.000 description 13
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 4
- 229910001297 Zn alloy Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009689 gas atomisation Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- 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
- H01M50/597—Protection against reversal of polarity
-
- 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
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/167—Lids or covers characterised by the methods of assembling casings with lids by crimping
-
- 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
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- 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
- H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides 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
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- 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
- H01M50/586—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
-
- 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
- H01M50/593—Spacers; Insulating plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/08—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with cup-shaped electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
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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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/30—Preventing polarity reversal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Primary Cells (AREA)
Description
ここで図18に示すように、薄肉部35bの破断部から噴出したガスは、同図に矢線で示しているように、負極端子板32のガス抜き孔32cから部品間に存在する僅かな隙間を抜けて電池外部に放出される。このため、何かの理由で電池内部に大量のガスが発生した場合はガスの放出が間に合わず、ガスの圧力が上昇してワッシャ50が脱離してしまう可能性がある。
試験1では、以上に説明したワッシャ50を用いて、ワッシャ50のガス抜き孔50dの面積が異なる複数種のアルカリ電池1のサンプルを作製し、ワッシャ50のガス抜き孔50dの面積、射出成形によるワッシャ50の成形状態、及びガスが大量に発生した際のワッシャ50の脱離の状況の関係について調べた。サンプルは上記種類ごとに複数個(30個)作製した。また各種類のサンプルには、前述したタイプ(1)〜(3)の異なるワッシャ50を備えたサンプルを混在させた。
前述したタイプ(1)〜(3)のワッシャ50は、いずれもフランジ部50cにガス抜き孔50dを設けているが、ワッシャ50の構成は、例えば、以下に示すような構成としてもよい。
続いて、タイプ(4)並びにタイプ(5)のワッシャ50を用いたアルカリ電池1のサンプルを作製し、射出成形によるワッシャ50の成形状態、並びにガスが大量に発生した際のワッシャ50の脱離の状況について検証した。サンプルは、空隙の面積(%)(後述)を変えた3種類のものを作製(種類ごとに複数個(30個)ずつ作製)した。尚、上記空隙の面積(%)は、正極缶11の開口部を当該正極缶11の円筒軸の方向から眺めたときの、負極端子板32の皿状の部分の周側面とワッシャ50のワッシャボス部50aの内側面(タイプ(4)の場合は内周面50f、タイプ(5)の場合は凹部50g)との間に形成される空隙の面積(投影面積)の、正極缶11の開口部を円筒軸の方向から眺めたときの、正極缶11の縁部の湾曲した部分の最高部を結ぶ環状の稜線と負極端子板32の周側面32bとで囲まれる平面領域の面積(投影面積)に対する割合(%)をいう。
Claims (3)
- 発電要素が収納される有底円筒状の電池缶、周囲に縁部が形成された外観略皿状の端子板、及び封口ガスケットを備え、
前記電池缶の開口側を上方とした場合に、前記封口ガスケットは前記端子板よりも下方に設けられ、
前記端子板及び前記封口ガスケットは、夫々の縁部が前記電池缶の縁部とともにカシメ加工されることにより、前記電池缶の開口に設けられ、
前記端子板の前記皿状の部分の周側面と、前記カシメ加工により前記電池缶の円筒軸方向に湾曲した前記電池缶の前記縁部との間に間隙が形成され、
円筒状のボス部と、前記ボス部の上端面の周囲に設けられる環状のフランジ部とを有し、前記間隙に前記ボス部を嵌着させて前記電池缶の開口部に組み付けられるワッシャを備え、
前記端子板の前記周側面の前記間隙に面する部分には、前記端子板と前記封口ガスケットとの間に存在する空間のガスを放出するための第1のガス抜き孔が形成され、
前記電池缶の前記縁部の先端は、前記カシメ加工によってやや下方を向く程度に湾曲し、
前記ワッシャは、前記電池缶の開口部に組み付けられた状態で、前記電池缶の前記湾曲した縁部の最高部を結ぶ環状の稜線と前記端子板の前記周側面とで囲まれた範囲内に、前記第1のガス抜き孔から前記間隙に流入したガスを当該筒型電池の外部に放出するためのガス抜き構造を有し、
前記ワッシャは、前記ガス抜き構造として、前記フランジ部の前記ボス部の近傍に、前記ボス部の外周面に沿って所定の長さで延出する第2のガス抜き孔を有する
ことを特徴とする筒型電池。 - 請求項1に記載の筒型電池であって、
前記ワッシャは、前記ボス部の外周面に沿って所定の間隔を空けて設けられた複数の前記第2のガス抜き孔を有することを特徴とする筒型電池。 - 請求項1または2に記載の筒型電池であって、
前記電池缶の開口部を当該電池缶の円筒軸の方向から眺めたときの前記第2のガス抜き孔の総面積が、前記電池缶の開口部を前記円筒軸の方向から眺めたときの、前記電池缶の縁部の前記湾曲した部分の最高部を結ぶ環状の稜線と前記端子板の前記周側面とで囲まれる平面領域の面積の7〜20%である
ことを特徴とする筒型電池。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015073854A JP6698279B2 (ja) | 2015-03-31 | 2015-03-31 | 筒型電池 |
CN201610188659.3A CN106025147B (zh) | 2015-03-31 | 2016-03-29 | 筒型电池 |
US15/084,623 US10211439B2 (en) | 2015-03-31 | 2016-03-30 | Cylindrical battery |
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---|---|---|---|
JP2015073854A JP6698279B2 (ja) | 2015-03-31 | 2015-03-31 | 筒型電池 |
Publications (2)
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JP2016195010A JP2016195010A (ja) | 2016-11-17 |
JP6698279B2 true JP6698279B2 (ja) | 2020-05-27 |
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JP2015073854A Active JP6698279B2 (ja) | 2015-03-31 | 2015-03-31 | 筒型電池 |
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US (1) | US10211439B2 (ja) |
JP (1) | JP6698279B2 (ja) |
CN (1) | CN106025147B (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6770851B2 (ja) * | 2016-08-23 | 2020-10-21 | Fdk株式会社 | 円筒形電池 |
JP6890027B2 (ja) | 2017-03-28 | 2021-06-18 | Fdk株式会社 | 円筒形電池の封口体、および円筒形電池 |
JP7085434B2 (ja) * | 2018-07-23 | 2022-06-16 | Fdk株式会社 | 円筒形電池、および円筒形電池用ワッシャー |
JP7274877B2 (ja) * | 2019-01-25 | 2023-05-17 | Fdk株式会社 | 封口ガスケット、および筒形電池 |
CN112310553B (zh) * | 2020-11-02 | 2022-09-06 | 深圳市合壹新能技术有限公司 | 电池壳体安装结构及纽扣电池 |
JP2024505642A (ja) | 2021-02-23 | 2024-02-07 | 寧徳時代新能源科技股▲分▼有限公司 | 電池セル、電池、電力消費装置及び電池セルを製造する方法と装置 |
CN115223797B (zh) * | 2021-04-14 | 2024-06-25 | 丰宾电子科技股份有限公司 | 一种安全防燃电容器 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0714555U (ja) | 1993-08-18 | 1995-03-10 | 富士電気化学株式会社 | 筒形アルカリ電池 |
JP4223134B2 (ja) * | 1999-04-20 | 2009-02-12 | 三桜工業株式会社 | 密閉型電池の容器封口構造 |
JP2002170539A (ja) * | 2000-11-29 | 2002-06-14 | Sony Corp | 電 池 |
JP2008277154A (ja) * | 2007-04-27 | 2008-11-13 | Matsushita Electric Ind Co Ltd | アルカリ乾電池 |
KR100882916B1 (ko) * | 2007-08-27 | 2009-02-10 | 삼성에스디아이 주식회사 | 이차전지 |
US9620751B2 (en) * | 2009-09-30 | 2017-04-11 | Lg Chem, Ltd. | Dual sealing cap assembly and cylindrical secondary battery including the same |
JP5588806B2 (ja) * | 2010-09-10 | 2014-09-10 | Fdkエナジー株式会社 | アルカリ電池 |
KR101201108B1 (ko) * | 2011-06-13 | 2012-11-13 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
JP6078334B2 (ja) * | 2012-12-26 | 2017-02-08 | Fdkエナジー株式会社 | 円筒形電池 |
-
2015
- 2015-03-31 JP JP2015073854A patent/JP6698279B2/ja active Active
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2016
- 2016-03-29 CN CN201610188659.3A patent/CN106025147B/zh active Active
- 2016-03-30 US US15/084,623 patent/US10211439B2/en active Active
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Publication number | Publication date |
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CN106025147A (zh) | 2016-10-12 |
US20160293916A1 (en) | 2016-10-06 |
US10211439B2 (en) | 2019-02-19 |
CN106025147B (zh) | 2020-07-07 |
JP2016195010A (ja) | 2016-11-17 |
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