JP4354349B2 - アルカリ乾電池用セパレータの評価方法 - Google Patents
アルカリ乾電池用セパレータの評価方法 Download PDFInfo
- Publication number
- JP4354349B2 JP4354349B2 JP2004194395A JP2004194395A JP4354349B2 JP 4354349 B2 JP4354349 B2 JP 4354349B2 JP 2004194395 A JP2004194395 A JP 2004194395A JP 2004194395 A JP2004194395 A JP 2004194395A JP 4354349 B2 JP4354349 B2 JP 4354349B2
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- Prior art keywords
- separator
- battery
- base paper
- alkaline
- negative electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000011156 evaluation Methods 0.000 title claims description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 33
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 239000008151 electrolyte solution Substances 0.000 claims description 6
- 239000000123 paper Substances 0.000 description 33
- 239000000203 mixture Substances 0.000 description 13
- 239000003792 electrolyte Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000010408 film Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/429—Natural polymers
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
- H01M50/494—Tensile strength
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cell Separators (AREA)
- Primary Cells (AREA)
Description
従って、電池の落下等による衝撃が外部より加わると、流動性のある高密度のゲル状負極がセパレータを突き破り、正極合剤に達して内部短絡を生じる可能性がある。
《実施例1〜3および比較例1〜3》
下記に示す手順で図1に示す単1形アルカリ乾電池(LR20)を作製した。
(1)円筒状セパレータ用原紙の作製
ビニロン、レーヨン、およびパルプの各繊維、ならびにバインダとしてのポリビニルアルコールを表1に示す割合で配合して抄紙機にて不織布を作製し、厚さ200μmの原紙を得た。そして、得られた原紙を55×150mm角に裁断した。
正極活物質として二酸化マンガンと、導電剤として黒鉛とを90:10の重量比で混合した。この混合物と、アルカリ電解液とを100:3の重量比で混合し、充分に攪拌した後、フレーク状に圧縮成形した。アルカリ電解液には、40重量%の水酸化カリウム水溶液を用いた。ついで、フレーク状の正極合剤を粉砕して顆粒状とし、これを篩によって分級し、10〜100メッシュのものを中空円筒状に加圧成形してペレット状の正極合剤2を得た。上記で得られた正極合剤2を電池ケース1内に3個挿入し、加圧治具により正極合剤2を再成形して電池ケース1の内壁に密着させた。
また、第2の底紙11は、イオンのみを透過させることができる微孔性フィルムからなる。この微孔性フィルムには、再生セルロースからなる薄膜の両面にポリビニルアルコール繊維からなる不織布をラミネートして得られた厚さ0.2mmの原紙を、一辺の長さが円筒状セパレータの外径よりも大きな正方形に切断したものを用いた。
(1)円筒状セパレータ用原紙の比破裂強さの測定
表1に示す各原紙を60×60mm角に裁断し、これを35重量%の水酸化カリウム水溶液中に3分間含浸させた。その後、水酸化カリウム水溶液中より取り出した後、1分間放置して余分な水酸化カリウム水溶液を取り除き、サンプルを得た。JIS P 8112の規定に従い、ミューレン低圧形試験機を用いて各サンプルの比破裂強さを測定した。1サンプルにつき10回ずつ測定を行い、その平均値を求めた。また、原紙が水酸化カリウム水溶液を含まない場合についても、上記と同様の方法により比破裂強さを測定した。
表1に示す各原紙を15×200mmに裁断し、上記と同様の方法により水酸化カリウム水溶液を含ませたものを4枚重ねてサンプルを得た。JIS P 8113の規定に従い、定速引張試験機を用いて各サンプルの引張強度を測定した。また、原紙が水酸化カリウム水溶液を含まない場合についても、上記と同様の方法により引張強度を測定した。
試験前に、各電池の開路電圧を測定した。1mの高さから底板側を下にして電池を5回落下させた後、再度各電池の開路電圧を測定した。このとき、落下後に開路電圧が5mV以上降下した電池の数を調べた。なお、電池の試験数は100個とした。
これらの測定結果を表2および3に示す。
2 正極合剤
3 ゲル状負極
4 円筒状セパレータ
5 ガスケット
6 負極集電子
7 底板
8 外装ラベル
9 底部セパレータ
10 第1の底紙
11 第2の底紙
Claims (1)
- 水酸化カリウムを30〜40重量%含むアルカリ水溶液からなる電解液を含む原紙の比破裂強さを測定し、得られた比破裂強さが2〜10kPa/(g/m2)の原紙をセパレータに用いることを特徴とするアルカリ乾電池用セパレータの評価方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004194395A JP4354349B2 (ja) | 2004-06-30 | 2004-06-30 | アルカリ乾電池用セパレータの評価方法 |
US11/167,430 US7544444B2 (en) | 2004-06-30 | 2005-06-28 | Alkaline dry battery and method for evaluating separator for use in alkaline dry battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004194395A JP4354349B2 (ja) | 2004-06-30 | 2004-06-30 | アルカリ乾電池用セパレータの評価方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006019094A JP2006019094A (ja) | 2006-01-19 |
JP4354349B2 true JP4354349B2 (ja) | 2009-10-28 |
Family
ID=35514344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004194395A Expired - Lifetime JP4354349B2 (ja) | 2004-06-30 | 2004-06-30 | アルカリ乾電池用セパレータの評価方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7544444B2 (ja) |
JP (1) | JP4354349B2 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4214172B1 (ja) | 2007-12-07 | 2009-01-28 | パナソニック株式会社 | アルカリ電池及び電池パック |
US20090176157A1 (en) * | 2007-12-27 | 2009-07-09 | Hidekatsu Izumi | Aa and aaa alkaline dry batteries |
US20090169988A1 (en) * | 2007-12-28 | 2009-07-02 | Fumio Kato | AA and AAA Alkaline dry batteries |
JP2009170159A (ja) * | 2008-01-11 | 2009-07-30 | Panasonic Corp | 単3形アルカリ乾電池 |
JP2009170157A (ja) * | 2008-01-11 | 2009-07-30 | Panasonic Corp | 単3形アルカリ乾電池 |
DK2272119T3 (da) | 2008-03-27 | 2014-07-07 | Zpower Llc | Elektrodeseparator |
DE102008041556A1 (de) | 2008-08-26 | 2010-03-04 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit Wärmetauscher |
US20120183861A1 (en) | 2010-10-21 | 2012-07-19 | Eastman Chemical Company | Sulfopolyester binders |
US20120183862A1 (en) * | 2010-10-21 | 2012-07-19 | Eastman Chemical Company | Battery separator |
WO2012067977A2 (en) | 2010-11-15 | 2012-05-24 | Zpower, Llc | Polymer plasticizers for separators |
JP2012156002A (ja) * | 2011-01-26 | 2012-08-16 | Panasonic Corp | アルカリ電池の製造方法 |
US8840757B2 (en) | 2012-01-31 | 2014-09-23 | Eastman Chemical Company | Processes to produce short cut microfibers |
US9617685B2 (en) | 2013-04-19 | 2017-04-11 | Eastman Chemical Company | Process for making paper and nonwoven articles comprising synthetic microfiber binders |
US9605126B2 (en) | 2013-12-17 | 2017-03-28 | Eastman Chemical Company | Ultrafiltration process for the recovery of concentrated sulfopolyester dispersion |
US9598802B2 (en) | 2013-12-17 | 2017-03-21 | Eastman Chemical Company | Ultrafiltration process for producing a sulfopolyester concentrate |
US9488562B1 (en) * | 2015-03-09 | 2016-11-08 | Amazon Technologies, Inc. | Measurement of dynamic battery pack properties |
US9645064B1 (en) | 2015-03-09 | 2017-05-09 | Amazon Technologies, Inc. | Measurement of dynamic material properties |
JP2022035309A (ja) * | 2020-08-20 | 2022-03-04 | ニッポン高度紙工業株式会社 | アルミニウム電解コンデンサ用セパレータ及びアルミニウム電解コンデンサ |
CN112928391B (zh) * | 2021-01-13 | 2021-12-17 | 横店集团东磁股份有限公司 | 一种防撞击碱锰电池 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4288503A (en) * | 1978-06-16 | 1981-09-08 | Amerace Corporation | Laminated microporous article |
US4812145A (en) * | 1987-12-22 | 1989-03-14 | Lydall, Inc. | Process for the production of a battery separator |
US5202178A (en) * | 1992-02-28 | 1993-04-13 | International Paper Company | High-strength nylon battery separator material and related method of manufacture |
JP3290734B2 (ja) | 1993-02-04 | 2002-06-10 | ニッポン高度紙工業株式会社 | アルカリ乾電池用セパレータ紙 |
JP3475803B2 (ja) | 1998-09-09 | 2003-12-10 | Fdk株式会社 | アルカリ乾電池 |
US7063917B2 (en) * | 2001-02-21 | 2006-06-20 | Ahlstrom Mount Holly Springs, Llc | Laminated battery separator material |
-
2004
- 2004-06-30 JP JP2004194395A patent/JP4354349B2/ja not_active Expired - Lifetime
-
2005
- 2005-06-28 US US11/167,430 patent/US7544444B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2006019094A (ja) | 2006-01-19 |
US20060003224A1 (en) | 2006-01-05 |
US7544444B2 (en) | 2009-06-09 |
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