JP2878289B2 - Paper battery - Google Patents
Paper batteryInfo
- Publication number
- JP2878289B2 JP2878289B2 JP63262376A JP26237688A JP2878289B2 JP 2878289 B2 JP2878289 B2 JP 2878289B2 JP 63262376 A JP63262376 A JP 63262376A JP 26237688 A JP26237688 A JP 26237688A JP 2878289 B2 JP2878289 B2 JP 2878289B2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- conductive
- coating film
- polyvinyl butyral
- terminal plate
- 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 - Fee Related
Links
- 239000011248 coating agent Substances 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 22
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 22
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 21
- 239000003973 paint Substances 0.000 claims description 12
- 239000011231 conductive filler Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 6
- 239000004014 plasticizer Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910002804 graphite Inorganic materials 0.000 description 8
- 239000010439 graphite Substances 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M4/66—Selection of materials
-
- 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
- H01M50/121—Organic material
-
- 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
-
- 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
- H01M50/1243—Primary casings; Jackets or wrappings characterised by the material having a layered structure characterised by the internal coating on the casing
-
- 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
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
- H01M50/133—Thickness
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ この発明は、正極や負極等を積層して作った扁平薄形
の発電要素を用いて構成される、ペーパー電池に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a paper battery configured using a flat thin power generating element formed by laminating a positive electrode, a negative electrode, and the like.
＜従来の技術＞ この種のペーパー電池、例えばリチウムペーパー電池
では、従来より、正極合剤と正極集電体あるいは正極端
子板などとの固着性を改善して電池の内部抵抗を低減す
る方法の１つとして、正極合剤と正極集電体ないし正極
端子板などとの間に、導電性を持つ塗膜を介在させるこ
とが提案されている。<Prior Art> In a paper battery of this type, for example, a lithium paper battery, a method of improving the adhesion between a positive electrode mixture and a positive electrode current collector or a positive electrode terminal plate to reduce the internal resistance of the battery has been conventionally used. As one, it has been proposed to interpose a conductive coating film between a positive electrode mixture and a positive electrode current collector or a positive electrode terminal plate.
このような導電性塗膜としては、水ガラス系やフッ素
系樹脂等を結着剤としまたグラファイトやカーボンブラ
ック等の炭素粉を導電性フィラーとして用いてなる導電
性塗料を、正極集電体や正極端子板の正極合剤対向側の
面に塗布して形成したものが知られている。As such a conductive coating, a conductive paint using a water glass-based or fluorine-based resin as a binder and a carbon powder such as graphite or carbon black as a conductive filler, a positive electrode current collector or It is known that the positive electrode terminal plate is formed by coating on the surface of the positive electrode mixture facing side.
＜発明が解決しようとする課題＞ しかしながら、この導電性塗料において従来より結着
剤として用いられている水ガラス系やフッ素系樹脂等は
固着性に劣るため合剤保持力が低く、このため電池組立
時において、この導電性塗膜を形成した正極集電体ない
し正極端子板の合剤対向面に正極合剤を載置する際、正
極合剤を所定の位置に固定・保持させることが難しい。<Problems to be Solved by the Invention> However, in this conductive paint, a water glass-based or fluorine-based resin, which has been conventionally used as a binder, is inferior in sticking property and therefore has a low mixture holding power. At the time of assembling, it is difficult to fix and hold the positive electrode mixture in a predetermined position when placing the positive electrode mixture on the mixture facing surface of the positive electrode current collector or the positive electrode terminal plate on which the conductive coating film is formed. .
それ故正極合剤の位置ズレが起こり易く、電池組立て
に支障が出る等の問題があった。Therefore, there has been a problem that the misalignment of the positive electrode mixture is likely to occur, which hinders battery assembly.
この発明は、特定の結着剤を用いることで、正極集電
体ないし正極端子板と正極合剤との間の固着性低下を招
くことなしに、導電性塗膜の合剤保持力を向上させるこ
とができるペーパー電池を提供することを目的とする。According to the present invention, the use of a specific binder improves the mixture holding power of the conductive coating film without lowering the adhesion between the positive electrode current collector or the positive electrode terminal plate and the positive electrode mixture. An object of the present invention is to provide a paper battery that can be operated.
＜課題を解決するための手段＞ この発明のリチウムペーパー電池は、導電性フィラー
と、結着剤としてポリビニルブチラール（PVB）と、ま
た可塑剤としてフタル酸ジブチル（DBP）とを含んでな
る導電性塗料であって、このポリビニルブチラールの添
加量が20重量％以上であるものを、正極集電体上ないし
正極端子板上に塗布して導電性塗膜を形成し、更にこの
導電性塗膜上に正極合剤を圧着させ一体化させてなるこ
とを要旨とする。<Means for Solving the Problems> A lithium paper battery according to the present invention has a conductive property comprising a conductive filler, polyvinyl butyral (PVB) as a binder, and dibutyl phthalate (DBP) as a plasticizer. A paint having a polyvinyl butyral content of 20% by weight or more is coated on a positive electrode current collector or a positive electrode terminal plate to form a conductive coating film. The gist of the present invention is that the positive electrode mixture is pressure-bonded and integrated.
尚、上記圧着による一体化後に、300℃程度の温度で
加熱乾燥処理を行なうようにしてもよい。この加熱乾燥
処理により、導電性塗膜中のポリビニルブチラール並び
にフタル酸ジブチルをそれぞれ80〜90重量％程度熱分解
させることができる。It should be noted that, after the above-mentioned integration by pressure bonding, a heating and drying treatment may be performed at a temperature of about 300 ° C. By this heating and drying treatment, polyvinyl butyral and dibutyl phthalate in the conductive coating film can each be thermally decomposed by about 80 to 90% by weight.
上記の導電性フィラーとしては、グラファイト，カー
ボンブラック等の炭素粉末、あるいは銀粉等の金属粉末
を用いることができる。As the conductive filler, carbon powder such as graphite and carbon black, or metal powder such as silver powder can be used.
そして、ポリビニルブチラール自体は可塑性がないの
で、可塑剤を併用する必要がある。この場合、上記のよ
うに、ポリビニルブチラールと相溶性のあるフタル酸ジ
ブチルを可塑剤に用いることが最適である。Since polyvinyl butyral itself does not have plasticity, it is necessary to use a plasticizer in combination. In this case, as described above, it is optimal to use dibutyl phthalate compatible with polyvinyl butyral as the plasticizer.
また、このフタル酸ジブチルの添加量をポリビニルブ
チラールの半分程度とすれば、導電性塗膜を均一なシー
ト状とし得ることが判っている。It has also been found that the conductive coating film can be formed into a uniform sheet when the amount of dibutyl phthalate added is about half that of polyvinyl butyral.
また、上記の導電性塗料に、その延展性を増大させる
べく、例えばアルコール系溶媒を添加しても良い。この
ような溶媒は、上記の加熱乾燥処理をする場合はその
際、またこの処理をしない場合でも作業雰囲気で容易に
飛散させることができる。尚、ポリビニルブチラール、
並びにフタル酸ジブチルは水溶性ではないので溶媒とし
て水を使用することはできない。Further, for example, an alcohol-based solvent may be added to the conductive paint in order to increase its spreadability. Such a solvent can be easily scattered in the working atmosphere when the above-mentioned heat drying treatment is performed, or even when this treatment is not performed. In addition, polyvinyl butyral,
In addition, dibutyl phthalate is not water-soluble, so that water cannot be used as a solvent.
＜作用＞ 上記のように結着剤としてポリビニルブチラールを用
いることで、導電性塗膜に固着性が付与され、正極合剤
を正極集電体ないし正極端子板に確実に固着させること
ができ、電池の組立容易化が図れる。<Function> By using polyvinyl butyral as a binder as described above, stickiness is imparted to the conductive coating film, and the positive electrode mixture can be securely fixed to the positive electrode current collector or the positive electrode terminal plate, The battery can be easily assembled.
また、このように導電性塗膜に固着性を持たせること
で正極合剤と正極集電体または正極端子板との固着性が
向上するので、電池内部の接触抵抗を大幅に低下させる
ことができるという効果がある。In addition, since the adhesion between the positive electrode mixture and the positive electrode current collector or the positive electrode terminal plate is improved by giving the conductive coating film the adhesion, the contact resistance inside the battery can be significantly reduced. There is an effect that can be.
＜実施例＞ 次に、実施例について説明する。Example Next, an example will be described.
ポリビニルブチラール24重量部とフタル酸ジブチル12
重量部に、導電性フィラーとしてグラファイト64重量部
と加え、更に所定量のアルコールと分散剤を添加し、こ
れらをボールミルにより所定時間混練して導電フィラー
を均一に分散させ、導電性の塗料を作製した。24 parts by weight of polyvinyl butyral and 12 parts of dibutyl phthalate
To the parts by weight, add 64 parts by weight of graphite as a conductive filler, further add a predetermined amount of alcohol and a dispersant, knead them for a predetermined time by a ball mill, uniformly disperse the conductive filler, and prepare a conductive paint. did.
次いで、この導電性塗料を正極端子板に所定量塗布し
て、厚さ２〜３μｍの導電性の塗膜を形成した後、導電
性塗膜上に正極合剤を圧着し固定させる。Next, a predetermined amount of this conductive paint is applied to the positive electrode terminal plate to form a conductive film having a thickness of 2 to 3 μm, and then the positive electrode mixture is pressed and fixed on the conductive film.
その後、これらを恒温槽中に入れ、300℃程度の温度
で加熱乾燥処理して、導電性塗膜中のポリビニルブチラ
ール並びにフタル酸ジブチルを熱分解させ、導電性フィ
ラー同士の接触を持たせる。Thereafter, these are placed in a thermostat, and heated and dried at a temperature of about 300 ° C. to thermally decompose polyvinyl butyral and dibutyl phthalate in the conductive coating film so that the conductive fillers come into contact with each other.
尚、加熱乾燥処理による熱分解後にロールまたはプレ
スしても良い。この圧着により、上記の熱分解処理の際
に生じた内部の気泡がなくなり、また導電性フィラー同
士の接触性がより高まるため、導電性塗膜の電気抵抗を
更に向上できて好ましい。In addition, you may roll or press after thermal decomposition by a heat drying process. This press bonding eliminates the internal bubbles generated during the thermal decomposition treatment and further enhances the contact between the conductive fillers, so that the electric resistance of the conductive coating film can be further improved, which is preferable.
そして、第１図のように、こうして正極端子板1,導電
性塗膜２並びに正極合剤３を組合せて作った正極部を、
セパレータ４を介して負極端子板５にリチウム負極６を
圧着した負極部と組合せ、また正極端子板周縁部と負極
端子板周縁部との間に封口剤７を介在させて両者を密着
させて、図示した通りの、厚さ0.5mmで16mm×34mmの大
きさのペーパーリチウム電池（本発明品）を作製した。Then, as shown in FIG. 1, the positive electrode portion made by combining the positive electrode terminal plate 1, the conductive coating film 2 and the positive electrode mixture 3 is
Combined with a negative electrode portion in which a lithium negative electrode 6 was crimped to a negative electrode terminal plate 5 via a separator 4, and a sealing agent 7 was interposed between a peripheral portion of the positive electrode terminal plate and a peripheral portion of the negative electrode terminal plate so that both were brought into close contact with each other. As shown, a paper lithium battery (product of the present invention) having a thickness of 0.5 mm and a size of 16 mm × 34 mm was prepared.
一方、上記の導電性塗膜を形成しない他は同様にし
て、リチウムペーパー電池（従来品）を作製した。On the other hand, a lithium paper battery (conventional product) was produced in the same manner except that the above-mentioned conductive coating film was not formed.
これらの電池を各々100個ずつ作り、それぞれの電池
について、各電池の内部抵抗（Ω）を調べ、その平均
値，最大値並びに最小値などを求めた所、下表の通りの
結果を得た。Each of these batteries was made 100 pieces, and for each battery, the internal resistance (Ω) of each battery was examined, and the average value, maximum value, minimum value, etc. were obtained. The results shown in the table below were obtained. .
次に、導電性塗料における各成分の好ましい範囲を調
べるため、導電性塗料における各組成を変化させ、その
際の導電性塗料の電気抵抗の変化を調べた。 Next, in order to examine a preferable range of each component in the conductive paint, each composition in the conductive paint was changed, and a change in electric resistance of the conductive paint at that time was examined.
この結果は第２図に示した通りであり、電気抵抗が最
も低くなるのは、導電性フィラーであるグラファイトが
70重量部、またポリビニルブチラール、フタル酸ジブチ
ルがそれぞれ20重量部10重量部の付近であり、この前後
の領域ではいずれも電気抵抗が高くなることが判る。This result is as shown in FIG. 2, and the lowest electric resistance is caused by the fact that graphite as a conductive filler is used.
70 parts by weight, and polyvinyl butyral and dibutyl phthalate, respectively, are around 20 parts by weight and 10 parts by weight, and it can be seen that the electric resistance is high in the regions before and after this.
尚、この図は導電性塗膜形成後に加熱分解処理を行っ
た結果である。This figure shows the result of heat decomposition treatment after the formation of the conductive coating film.
グラファイトが70重量部以下（つまりポリビニルブチ
ラールが20重量部以上）の領域で電気抵抗が大きく増加
する原因としては、余剰のポリビニルブチラールがグラ
ファイト粒子を覆ってしまうことによりグラファイト同
士の接触が不十分となり、電気抵抗が増加するものと思
われる。The cause of the large increase in electrical resistance in the region where graphite is 70 parts by weight or less (that is, polyvinyl butyral is 20 parts by weight or more) is because excess polyvinyl butyral covers the graphite particles and the contact between graphite becomes insufficient. It seems that the electric resistance increases.
一方、ポリビニルブチラールの添加量が20重量部未満
の場合、ポリビニルブチラールの量が少量のため、導電
性塗膜に十分な固着性を付与することができなくなり、
グラファイト同士の接触は十分であるにも拘らず、導電
性塗料と正極端子板，導電性塗料と正極合剤との接触が
不十分となり、電気抵抗が増加するものと思われる。On the other hand, when the added amount of polyvinyl butyral is less than 20 parts by weight, the amount of polyvinyl butyral is small, so that it is not possible to impart sufficient adhesion to the conductive coating film,
Although the contact between the graphites is sufficient, it is considered that the contact between the conductive paint and the positive electrode terminal plate and the contact between the conductive paint and the positive electrode mixture become insufficient and the electric resistance increases.
尚、ポリビニルブチラールが20重量部未満の場合に
は、上記のように熱分解処理を行なってポリビニルブチ
ラールの80〜90重量％を分解（フタル酸ジブチルも同様
に分解）させる必要があり、それにより、グラファイト
同士の接触が十分となって、電気抵抗の低い導電性塗膜
が確保される。In addition, when polyvinyl butyral is less than 20 parts by weight, it is necessary to decompose 80 to 90% by weight of polyvinyl butyral by performing the thermal decomposition treatment as described above (also decompose dibutyl phthalate). In addition, the contact between graphites becomes sufficient, and a conductive coating film having low electric resistance is secured.
また、ポリビニルブチラールの添加量を５重量部未満
とした場合、加熱分解処理をしなくともグラファイト同
士が十分接触しているか、または極めて接近しているた
め、電子のトンネル効果により、電気抵抗の低い導電性
塗膜を確保することができる。If the amount of polyvinyl butyral is less than 5 parts by weight, the graphites are in sufficient contact or extremely close to each other without heat decomposition treatment. A conductive coating film can be secured.
＜発明の効果＞ 以上のようにこの発明のペーパー電池によれば、電池
組立て工程において正極合剤を正極集電体上ないし正極
端子板上に確実に固着させることができて、電池の組立
容易化が図れる。<Effects of the Invention> As described above, according to the paper battery of the present invention, the positive electrode mixture can be securely fixed on the positive electrode current collector or the positive electrode terminal plate in the battery assembling step, and the battery can be easily assembled. Can be achieved.
更に、正極合剤と正極集電体または正極端子板との固
着性が向上するから、電池内部の接触抵抗が大幅に低下
し、電池性能の向上を図れるという利点もある。Furthermore, since the adhesion between the positive electrode mixture and the positive electrode current collector or the positive electrode terminal plate is improved, there is an advantage that the contact resistance inside the battery is greatly reduced and the battery performance can be improved.
第１図は実施例の電池の断面図、第２図は導電性塗膜に
おけるグラファイトの含有量と電気抵抗との関係を示し
たグラフである。 １……正極端子板、２……導電性塗膜、３……正極合
剤、４……セパレータ、５……負極端子板。FIG. 1 is a cross-sectional view of the battery of the example, and FIG. 2 is a graph showing the relationship between the graphite content and the electrical resistance in the conductive coating film. DESCRIPTION OF SYMBOLS 1 ... Positive electrode terminal plate, 2 ... Conductive coating film, 3 ... Positive electrode mixture, 4 ... Separator, 5 ... Negative electrode terminal plate.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 稲垣 稔 東京都港区新橋５丁目36番11号 富士電 気化学株式会社内 (58)調査した分野(Int.Cl.6，ＤＢ名) H01M 4/06 - 4/08 H01M 4/62 H01M 6/12 - 6/16 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Minoru Inagaki 5-36-11 Shimbashi, Minato-ku, Tokyo Inside Fuji Electric Chemical Co., Ltd. (58) Field surveyed (Int.Cl. 6 , DB name) H01M 4 / 06-4/08 H01M 4/62 H01M 6/12-6/16
Claims (1)
ルブチラールと、また可塑剤としてフタル酸ジブチルと
を含んでなる導電性塗料であって、このポリビニルブチ
ラールの添加量が20重量％以上であるものを、正極集電
体上ないし正極端子板上に塗布して導電性塗膜を形成
し、更にこの導電性塗膜上に正極合剤を圧着させてなる
ことを特徴とするペーパー電池。1. A conductive paint comprising a conductive filler, polyvinyl butyral as a binder, and dibutyl phthalate as a plasticizer, wherein the amount of the polyvinyl butyral added is 20% by weight or more. A paper battery obtained by applying the composition onto a positive electrode current collector or a positive electrode terminal plate to form a conductive coating film, and further pressing a positive electrode mixture onto the conductive coating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63262376A JP2878289B2 (en) | 1988-10-18 | 1988-10-18 | Paper battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63262376A JP2878289B2 (en) | 1988-10-18 | 1988-10-18 | Paper battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02109256A JPH02109256A (en) | 1990-04-20 |
| JP2878289B2 true JP2878289B2 (en) | 1999-04-05 |
Family
ID=17374893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63262376A Expired - Fee Related JP2878289B2 (en) | 1988-10-18 | 1988-10-18 | Paper battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2878289B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100403806B1 (en) * | 1996-11-30 | 2003-12-18 | 삼성전자주식회사 | Lithium secondary battery |
| WO2013018684A1 (en) | 2011-07-29 | 2013-02-07 | 古河スカイ株式会社 | Collector and electrode structure, non-aqueous electrolyte cell, electrical double layer capacitor, lithium ion capacitor, or electricity storage component using same |
| JP5788985B2 (en) | 2011-07-29 | 2015-10-07 | 株式会社Uacj | Current collector, electrode structure, non-aqueous electrolyte battery, power storage component, nitrified cotton-based resin material |
| SE2251198A1 (en) * | 2022-10-13 | 2024-04-14 | Northvolt Ab | Overlapping edge coating comprising polyvinyl butyralin in an electrode roll, and a cylindrical secondary cell |
-
1988
- 1988-10-18 JP JP63262376A patent/JP2878289B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02109256A (en) | 1990-04-20 |
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