JPS63266774A - Flat type organic electrolyte battery - Google Patents
Flat type organic electrolyte batteryInfo
- Publication number
- JPS63266774A JPS63266774A JP10249987A JP10249987A JPS63266774A JP S63266774 A JPS63266774 A JP S63266774A JP 10249987 A JP10249987 A JP 10249987A JP 10249987 A JP10249987 A JP 10249987A JP S63266774 A JPS63266774 A JP S63266774A
- Authority
- JP
- Japan
- Prior art keywords
- film
- positive electrode
- weight
- density
- organic electrolyte
- 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.)
- Pending
Links
- 239000005486 organic electrolyte Substances 0.000 title claims description 8
- 239000000203 mixture Substances 0.000 claims abstract description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 11
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005977 Ethylene Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 238000003475 lamination Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000007773 negative electrode material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- NJVHJTQSGGRHGP-UHFFFAOYSA-K [Li].[Al+3].[Cl-].[Cl-].[Cl-] Chemical compound [Li].[Al+3].[Cl-].[Cl-].[Cl-] NJVHJTQSGGRHGP-UHFFFAOYSA-K 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N ethyl ethylene Natural products CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- OJKANDGLELGDHV-UHFFFAOYSA-N disilver;dioxido(dioxo)chromium Chemical compound [Ag+].[Ag+].[O-][Cr]([O-])(=O)=O OJKANDGLELGDHV-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- XQHAGELNRSUUGU-UHFFFAOYSA-M lithium chlorate Chemical compound [Li+].[O-]Cl(=O)=O XQHAGELNRSUUGU-UHFFFAOYSA-M 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- 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
- H01M4/64—Carriers or collectors
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/668—Composites of electroconductive material and synthetic resins
-
- 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
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は、扁平型電池に係り、特に扁平型有機電解質電
池に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a flat battery, and particularly to a flat organic electrolyte battery.
従来、扁平型電池、特に扁平型有機電解質電池は、負極
端子と封目板を兼ねた負極缶、負極活物質、セパレータ
、正極合剤、正極端子と電池ケースを兼ねた正極ケース
が積層状に構成されたものであり該電池はその製造工程
上からその負極を負極活物質の粘着性を利用して、封口
板を該活物質に圧着して封口させている。Conventionally, flat-type batteries, especially flat-type organic electrolyte batteries, have a laminated structure consisting of a negative electrode can that serves as a negative terminal and a sealing plate, a negative electrode active material, a separator, a positive electrode mixture, a positive terminal and a positive electrode case that also serves as a battery case. In the manufacturing process of the battery, the negative electrode is sealed by pressing a sealing plate onto the active material by utilizing the adhesiveness of the negative electrode active material.
また、扁平型電池では正極合剤と正極ケースとの両者を
単に接触させることによって電気的に接続させている。Further, in a flat battery, the positive electrode mixture and the positive electrode case are electrically connected by simply bringing them into contact with each other.
しかし、このような接続方法では接触抵抗が大きく大電
流が取り出し難く、シかも、該電池は放電中に正負極の
体質変化が生じることから、正−合剤と正極ケースの接
合度合が変動して、電池特性に変化を与えるといった欠
点があった。However, with this connection method, the contact resistance is large and it is difficult to extract a large current.Also, because the properties of the positive and negative electrodes of the battery change during discharge, the degree of bonding between the positive mixture and the positive electrode case fluctuates. However, it has the disadvantage of causing changes in battery characteristics.
そこで、該電池の正極ケース内底面にチタンや、ステン
レス鋼などの金属集電体を取り付け、その上に正極合剤
を積層し、該正極合剤に集電体をくい込ませるようにし
て接触させていた。Therefore, a metal current collector made of titanium or stainless steel is attached to the inner bottom of the positive electrode case of the battery, a positive electrode mixture is layered on top of the current collector, and the current collector is inserted into the positive electrode mixture to make contact. was.
このような接触方法によって、正極剤の集電効果は若干
向上するが、集電体が金属で形成されるために硬く、電
池封口時にひびが発生したり１割れたりする現象が生じ
る。このような現象は特に正極合剤の厚さの薄い薄型電
池で現われた。それ故、前記正極ケースに金属集電体を
取り付けず、ケース内底面にカーボンと水ガラスからな
るカーボン塗料を塗布して、集電体とすることも考えら
れるが、塗料を厚く、均一な厚さに塗布することが難か
しく、実現することは困難であった。Although this contact method slightly improves the current collecting effect of the positive electrode material, the current collector is made of metal and is therefore hard, resulting in cracks or cracks when the battery is sealed. This phenomenon particularly occurs in thin batteries where the positive electrode mixture is thin. Therefore, it is conceivable to not attach a metal current collector to the positive electrode case and instead apply a carbon paint made of carbon and water glass to the inner bottom of the case as a current collector. However, it was difficult to apply it to the surface, and it was difficult to realize it.
本発明は、上記のような問題点に対して、従来の金属製
集電体に代えて特定の導電性フィルムを用いることによ
り、正極合剤と正極ケース、負極と負極毎との接触が確
実で良好な扁平型電池を完成したものである。The present invention solves the above-mentioned problems by using a specific conductive film in place of the conventional metal current collector, thereby ensuring reliable contact between the positive electrode mixture and the positive electrode case, and between each negative electrode. This completed a good flat battery.
すなわち本発明は、扁平型有機電解質電池において、該
電池の正極、負極又は両極の集電体として・密度０．９
４５ｇ／ｃｍ’以上のエチレン系樹脂７０〜９０重量２
と導電性カーボンプラー７り粉末３０〜１０ｆｆｉ量ｚ
を含有する組成物から成るフィルム層の少なくとも片面
に、融点 １３０°Ｃ以下で、密度０．９３０ｇ／ｃ層
３以下の該フィルム層の樹脂より軟質の重合体７０〜９
０重量２と導電性カーボンブラック粉末３０〜１０重量
２を含有する組成物から成る層を積層したフィルムを用
いたことを特徴とする扁平型有機電解質電池である。That is, the present invention provides a flat organic electrolyte battery with a density of 0.9 as a current collector for the positive electrode, negative electrode, or both electrodes of the battery.
Ethylene resin of 45 g/cm' or more 70-90 weight 2
and conductive carbon puller powder 30~10ffi amount z
A polymer 70 to 9 that is softer than the resin of the film layer and has a melting point of 130° C. or less and a density of 0.930 g/c layer 3 or less, on at least one side of the film layer made of a composition containing
This is a flat type organic electrolyte battery characterized by using a film laminated with layers made of a composition containing 0 weight 2 of conductive carbon black powder and 30 to 10 weight 2 of conductive carbon black powder.
第１図は本発明の扁平型電池の一実施例を示す断面図で
ある。第１図において１は正極端子を兼ねたステンレス
鋼製正極ケースであり、該正極ケース１の内周面には円
筒状絶縁バッキング２が嵌装されており、該円筒状絶縁
バッキング２の内部中央の正極ケース１の底部には正極
集電体として導電フィルム３が装着されている。そして
その上方部分にはフッ化炭素、カーボン及びバインダー
を混合して直径１５ｍ■の円板状に加圧成形した正極合
剤４が配置されており、その上方のリチウムシートから
なる負極活物質５との間にはポリプロピレンの不織布か
ら成るセパレータ６が装着されている。そしてこの負極
活物質５とステンレス鋼製の負極端子を兼ねた負極毎８
との間に負極集電体として導電フィルム７を装着して圧
着し、正極ケース１の上端１ａを内側にかしめて絶縁バ
ッキングに固着して扁平型電池を形成している。FIG. 1 is a sectional view showing an embodiment of a flat battery of the present invention. In FIG. 1, 1 is a stainless steel positive electrode case that also serves as a positive electrode terminal, and a cylindrical insulating backing 2 is fitted on the inner peripheral surface of the positive electrode case 1. A conductive film 3 is attached to the bottom of the positive electrode case 1 as a positive electrode current collector. A positive electrode mixture 4 made of a mixture of fluorocarbon, carbon, and a binder and pressure-molded into a disc shape with a diameter of 15 m is placed above it, and above it is a negative electrode active material 5 made of a lithium sheet. A separator 6 made of a nonwoven polypropylene fabric is installed between the two. This negative electrode active material 5 and each negative electrode 8 which also serves as a stainless steel negative electrode terminal
A conductive film 7 is attached and crimped as a negative electrode current collector between the positive electrode case 1 and the upper end 1a of the positive electrode case 1 is caulked inward and fixed to an insulating backing to form a flat battery.
正極活物質としては、上記フッ化炭素の他に、二酸化マ
ンガン、酸化銅、硫化鉄、酸化モリブデン、クロム酸銀
等を用いたものでも同様の効果を得ることが出来る。As the positive electrode active material, in addition to the above-mentioned carbon fluoride, similar effects can be obtained using materials such as manganese dioxide, copper oxide, iron sulfide, molybdenum oxide, and silver chromate.
また、電解液としてはプロピレンカーボネート、γ−ブ
チロラクトン、１．２−ジメトキシエタンなどの有機溶
媒に、舞塩素酸リチウム、塩化アルミニウムリチウム、
ホウフッ化リチウムなどの溶質を溶解したものが用いら
れる。In addition, as an electrolyte, organic solvents such as propylene carbonate, γ-butyrolactone, and 1,2-dimethoxyethane, lithium chlorate, lithium aluminum chloride,
A solution containing a solute such as lithium borofluoride is used.
本発明において用いられる導電フィルムとしては、密度
０．９４５１／ｃｍ”以上のエチレン系樹脂７０〜９０
重量２．好ましくは７５〜８５重量２と、導電性カーボ
ンブラック粉末３０〜１０重量２、好ましくは２５〜１
５重量２を含有する組成物より成るフィルム層の少なく
とも片面に、融点１３０℃以下で密度０゜９３０ｇ／ａ
ｍ’以下の該フィルム層樹脂より軟質の重合体７０〜９
０重量２．好ましくは７５〜８５重量２と、導電性カー
ボンブラック粉末３０〜１０重量２、好ましくは２５〜
１５重量駕を含有する組成物から成る層を積層したフィ
ルムである。The conductive film used in the present invention is an ethylene resin with a density of 0.9451/cm" or more, 70 to 90%
Weight 2. Preferably 75-85 weight 2 and conductive carbon black powder 30-10 weight 2, preferably 25-1
5 weight 2, on at least one side of the film layer made of a composition containing
Polymer 70 to 9 that is softer than the film layer resin of m' or less
0 weight 2. Preferably 75-85 weight 2 and conductive carbon black powder 30-10 weight 2, preferably 25-
This is a film laminated with layers made of a composition containing 15 parts by weight.
ここで用いるエチレン系重合体樹脂の密度を０．９４５
１／ｃｍ”以上、好ましくは０．Ｉ３４Ｂｇ／ ａｍＭ
以上と限定した理由は、電解液の不透過性の点で優れる
からであり、密度が０．９４５１／ａｍ’未満では好ま
しくない。The density of the ethylene polymer resin used here is 0.945
1/cm” or more, preferably 0.I34Bg/amM
The reason for the above limitation is that it is excellent in terms of impermeability to the electrolytic solution, and a density of less than 0.9451/am' is not preferable.
上記エチレン系重合体よりも軟質の重合体とは、融点が
１３０℃以下、好ましくは１２７℃以下で、密度が０．
９３０ｇ／ｃ＋ｓ’以下、好ましくは０．９２５ｇ／ｃ
ｍ”以下のものであり、具体的にはエチレン単独重合体
、エチレンとプロピレン、ブテン−■、ヘキセン−１、
オクテン−１等のα−オレフィンとの共重合体、さらに
はブチルゴム、スチレン系のゴム等である。A polymer softer than the above ethylene polymer has a melting point of 130°C or lower, preferably 127°C or lower, and a density of 0.
930g/c+s' or less, preferably 0.925g/c
m" or less, specifically ethylene homopolymer, ethylene and propylene, butene-■, hexene-1,
Copolymers with α-olefins such as octene-1, butyl rubber, styrene rubber, etc.
ここで、密度が０．９４５ｇ／ｃｍ’以上のエチレン系
重合体と、導電性カーボンブラックとの組成物から成る
層（Ａ層）のフィルムに対して、上記Ａ層のフィルムよ
り軟質の重合体と導電性カーボンブラックとの組成物か
ら成る層（Ｂ層）を少なくとも片面に積層する理由は、
それによって負極毎と負極活物質、又は正極ケースと正
極合剤との密着性が向上し、接触抵抗等が低くできると
いう利点からである０反面、軟質重合体層のフィルム全
体厚みに占める積層比率が５０％を超えると、電解液不
透過性が低下するので、Ｂ層の積層比率は５０％以内に
することが好ましい、該積層フィルムの厚さは一般に５
〜４０糾鳳、好ましくは１０〜３０ｇｍである。Here, for the film of the layer (layer A) consisting of a composition of an ethylene polymer having a density of 0.945 g/cm' or more and conductive carbon black, a polymer softer than the film of the layer A is used. The reason why a layer (B layer) consisting of a composition of conductive carbon black and conductive carbon black is laminated on at least one side is as follows.
This improves the adhesion between each negative electrode and the negative electrode active material, or between the positive electrode case and the positive electrode mixture, and reduces contact resistance.On the other hand, the lamination ratio of the soft polymer layer to the total film thickness is If it exceeds 50%, the electrolyte impermeability decreases, so it is preferable to keep the lamination ratio of layer B within 50%.The thickness of the laminated film is generally 5% or less.
-40gm, preferably 10-30gm.
以下、本発明の効果を具体的に実施例を用いて説明する
。実施例及び比較例で用いられた組成物は次のものであ
る。Hereinafter, the effects of the present invention will be specifically explained using examples. The compositions used in Examples and Comparative Examples are as follows.
Ａ層材料：
高密度ポリエチレン（密度：０．９５０ｇ／ｃｓｍ）
７５重量％と、導電性カーボン（パルカンＸＣ−７２（
キャポット社）８重量２およびケッチェンブラックＥＣ
（ケッチェンブラックインターナシ璽ナル社） １９重
量％）２５重Ｎｚとをバンバリーミキサ−を用いて２０
０℃、 ９０ｒｐｍで１０分間溶融混練した組成物。A layer material: High density polyethylene (density: 0.950g/csm)
75% by weight and conductive carbon (Palcan XC-72 (
Capot Co.) 8 Weight 2 and Ketjen Black EC
(Ketjen Black International Co., Ltd.) 19% by weight) 25% Nz and 20% by weight using a Banbury mixer.
The composition was melt-kneaded at 0°C and 90 rpm for 10 minutes.
Ｂ層材料：
以下の（Ｂ−１）〜（Ｂ−５）に示すポリオレフィン８
８ｗｔＺと導電性カーボン１４ｗｔ１とをバンバリーミ
キサ−を用いて２００℃、９０ｒｐｍ ？ＩＯ分間溶融
混練した組成物。B layer material: Polyolefin 8 shown in (B-1) to (B-5) below
8wtZ and 14wt1 conductive carbon were mixed at 200°C and 90rpm using a Banbury mixer. Composition melt-kneaded for IO minutes.
（Ｂ−１）：密度０．９２０ ｇ／ｃｍｓｃ７）低密度
ポリエチレン（Ｂ−２）：密度０．９２０ ｇ／ｃ脂Ｓ
の低密度ポリエチレン８８重量％と密度０．９２０ ｇ
／ｃｍ” ＋７） ｘ ５− レン・ブテン−１共重合
体（ブテン含量７．７重量％）１１３１３重量のブレン
ド
（Ｂ−３） ：密度０．９２０１／ｃ量３のエチレン・
ブテン−１共重合体（ブテン含量７．７重量２）
（Ｂ−４）：密度０．８９８１／ｃｍ’ （１）プロピ
レン・エチレンランダム共重合体（エチレン含量４重量
２）
（Ｂ−５） ：密度０．９０４ｇ／ｃ＋ｓｉのプロピレ
ン・エチレンブロック共重合体（エチレン含量８重量２
）
実施例１〜３及び比較例１〜２
上記Ａ層材料をＬ／Ｄ ２４、口径８５１１１１の押出
機を用いて樹脂温度２００℃で溶融混練した。(B-1): Density 0.920 g/cmsc7) Low density polyethylene (B-2): Density 0.920 g/cmsc
Low density polyethylene 88% by weight and density 0.920 g
/cm" +7)
Butene-1 copolymer (butene content 7.7 weight 2) (B-4): Density 0.8981/cm' (1) Propylene-ethylene random copolymer (ethylene content 4 weight 2) (B-5) : Propylene/ethylene block copolymer with density 0.904 g/c+si (ethylene content 8 weight 2
) Examples 1 to 3 and Comparative Examples 1 to 2 The above A-layer materials were melt-kneaded at a resin temperature of 200°C using an extruder with L/D 24 and diameter 851111.
一方、前記Ｂ層材料のをＬ／Ｄ ２４、口径５０腸■の
押出機を用いて樹脂温度１７０℃で溶融混練し１両者を
１台の共押出ダイスに供給し、ダイス内でＡ層５０Ｉ
ＬＩｌの両表面にＢ層がそれぞれ１５ｐｓと成るように
して、ダイス温度２００℃で成形速度７ｍ／分で全厚み
８Ｑｐｍの導電性積層フィルムを得た。ただし、Ｂ−４
およびＢ−５のみＡ層と積層させずに単独で厚さ８Ｑ７
ｚｍのフィルムとした。On the other hand, the B layer material was melt-kneaded at a resin temperature of 170°C using an extruder with an L/D of 24 and a diameter of 50 mm, and both were supplied to one coextrusion die, and in the die, the A layer with a diameter of 50 mm was melted and kneaded.
A conductive laminated film having a total thickness of 8 Qpm was obtained at a die temperature of 200° C. and a molding speed of 7 m/min, with the B layer formed on both surfaces of LIl at 15 ps each. However, B-4
And only B-5 has a thickness of 8Q7 without being laminated with A layer.
zm film.
これらのフィルムを、それぞれ１１図に示す正極ケース
１の内面と、負極毎８の内面に装着した。正極合剤４と
してフッ化炭素、カーボン及びバインダーを混合して、
直径１５ ｍｍの円板状に加圧成形したものを用い、ま
た、負極活物質５としてリチウムシートを用い、さらに
電解液としてγ−ブチロラクトンに塩化アルミニウムリ
チウムを溶解させたものを用いた。ポリエチレン絶縁バ
ッキング２を介し、正極ケース端部を内方にかしめて封
口して電池を作成した。この電池の総高は １．８■■
、直径２〇−輪である。These films were attached to the inner surface of the positive electrode case 1 shown in FIG. 11 and the inner surface of each negative electrode case 8, respectively. Mix fluorocarbon, carbon, and a binder as positive electrode mixture 4,
A lithium sheet was used as the negative electrode active material 5, and lithium aluminum chloride dissolved in γ-butyrolactone was used as the electrolyte. The end of the positive electrode case was caulked inward through a polyethylene insulating backing 2 to seal the battery. The total height of this battery is 1.8■■
, 20-ring in diameter.
得られた電池の内部抵抗（Ω）、温度９０℃で相対湿度
９０ＸＲＨ中で５０日間保存した後の、放電前の内部抵
抗及び電池組立時の正極合剤割れの発生数（検体数３０
）を第１表に示す。The internal resistance (Ω) of the obtained battery, the internal resistance before discharge after storage at a temperature of 90°C and relative humidity of 90XRH for 50 days, and the number of cracks in the positive electrode mixture during battery assembly (number of samples: 30)
) are shown in Table 1.
第１図は１本発明の 平型電池の一実施例を表わす断面
図である。
ｌ：正極ケース、 ２：絶縁バッキング、３：正極
集電体、 ４：正極合剤、５：負極活物質、
６：セパレータ、７：負極集電体、 ８：負極毎。
ｆ５１表FIG. 1 is a sectional view showing an embodiment of a flat battery according to the present invention. l: positive electrode case, 2: insulating backing, 3: positive electrode current collector, 4: positive electrode mixture, 5: negative electrode active material,
6: Separator, 7: Negative electrode current collector, 8: Each negative electrode. f51 table
Claims (2)
負極又は両極の集電体として、密度０．９４５ｇ／ｃｍ
＾３以上のエチレン系樹脂７０〜９０重量％と導電性カ
ーボンブラック粉末３０〜１０重量％を含有する組成物
から成るフィルム層（Ａ）の少なくとも片面に、融点１
３０℃以下で、密度０．９３０ｇ／ｃｍ＾３以下の該フ
ィルム層の樹脂より軟質の重合体７０〜９０重量％と導
電性カーボンブラック粉末３０〜１０重量％を含有する
組成物から成る層（Ｂ）を積層したフィルムを用いたこ
とを特徴とする扁平型有機電解質電池。(1) In a flat organic electrolyte battery, a positive electrode of the battery,
As a negative electrode or both electrode current collector, density 0.945 g/cm
At least one side of the film layer (A) made of a composition containing 70 to 90% by weight of an ethylene resin having a melting point of 3 or more and 30 to 10% by weight of conductive carbon black powder has a melting point of 1.
A layer consisting of a composition containing 70 to 90% by weight of a polymer softer than the resin of the film layer and 30 to 10% by weight of conductive carbon black powder at a temperature of 30°C or less and a density of 0.930 g/cm^3 or less ( A flat organic electrolyte battery characterized by using a film laminated with B).
積層比率が５０％以下である、特許請求の範囲第１項に
記載の扁平型有機電解質電池。(2) The flat organic electrolyte battery according to claim 1, wherein the lamination ratio of the film layer (B) to the thickness of the laminated film is 50% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10249987A JPS63266774A (en) | 1987-04-24 | 1987-04-24 | Flat type organic electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10249987A JPS63266774A (en) | 1987-04-24 | 1987-04-24 | Flat type organic electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63266774A true JPS63266774A (en) | 1988-11-02 |
Family
ID=14329101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10249987A Pending JPS63266774A (en) | 1987-04-24 | 1987-04-24 | Flat type organic electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63266774A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5589297A (en) * | 1993-12-29 | 1996-12-31 | Tdk Corporation | Lithium secondary cell |
| JP2001068089A (en) * | 1999-08-27 | 2001-03-16 | Japan Storage Battery Co Ltd | Battery |
| JP2004363078A (en) * | 2002-11-08 | 2004-12-24 | Sanyo Electric Co Ltd | Nonaqueous electrolytic solution battery |
| WO2010103874A1 (en) * | 2009-03-12 | 2010-09-16 | 日産自動車株式会社 | Bipolar battery current collector and bipolar battery |
| JP2011065842A (en) * | 2009-09-16 | 2011-03-31 | Nissan Motor Co Ltd | Electrolyte for lithium secondary battery, and bipolar secondary battery using the same |
-
1987
- 1987-04-24 JP JP10249987A patent/JPS63266774A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5589297A (en) * | 1993-12-29 | 1996-12-31 | Tdk Corporation | Lithium secondary cell |
| JP2001068089A (en) * | 1999-08-27 | 2001-03-16 | Japan Storage Battery Co Ltd | Battery |
| JP2004363078A (en) * | 2002-11-08 | 2004-12-24 | Sanyo Electric Co Ltd | Nonaqueous electrolytic solution battery |
| JP4508601B2 (en) * | 2002-11-08 | 2010-07-21 | 三洋電機株式会社 | Non-aqueous electrolyte battery |
| WO2010103874A1 (en) * | 2009-03-12 | 2010-09-16 | 日産自動車株式会社 | Bipolar battery current collector and bipolar battery |
| US10177387B2 (en) | 2009-03-12 | 2019-01-08 | Nissan Motor Co., Ltd. | Bipolar battery current collector that contracts to interrupt a flow of electric current in a direction thereof and bipolar battery |
| JP2011065842A (en) * | 2009-09-16 | 2011-03-31 | Nissan Motor Co Ltd | Electrolyte for lithium secondary battery, and bipolar secondary battery using the same |
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