JPH07335226A - Manufacture of end plate electrode of zinc-bromine battery - Google Patents
Manufacture of end plate electrode of zinc-bromine batteryInfo
- Publication number
- JPH07335226A JPH07335226A JP6130716A JP13071694A JPH07335226A JP H07335226 A JPH07335226 A JP H07335226A JP 6130716 A JP6130716 A JP 6130716A JP 13071694 A JP13071694 A JP 13071694A JP H07335226 A JPH07335226 A JP H07335226A
- Authority
- JP
- Japan
- Prior art keywords
- carbon plastic
- electrode
- end plate
- carbon
- zinc
- 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
Classifications
-
- 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
- Inert Electrodes (AREA)
- Hybrid Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、亜鉛−臭素電池の端
板電極の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an end plate electrode of a zinc-bromine battery.
【０００２】[0002]
【従来の技術】亜鉛−臭素電池は高効率、高エネルギー
密度、低コストが期待されている新型二次電池の一つで
ある。この電池の端板電極は絶縁材料でできている枠体
とカーボンプラスチック電極部をそれぞれ射出成形、ヒ
ートプレス成形で図２、図３のように作製しておき、そ
れらを溶着により図４のように一体化して作製される。2. Description of the Related Art A zinc-bromine battery is one of new type secondary batteries expected to have high efficiency, high energy density and low cost. As for the end plate electrodes of this battery, a frame body made of an insulating material and a carbon plastic electrode portion are prepared by injection molding and heat press molding as shown in FIG. 2 and FIG. 3, respectively, and by welding them as shown in FIG. It is made by being integrated with.
【０００３】図２において１は枠体であり、該枠体１に
は、溶着のためのリブ２とバリ逃げ溝３が設けられてい
る。図３、図４において１１はカーボンプラスチック電
極、１２は集電端子、１３は集電体真ちゅうメッシュで
ある。In FIG. 2, reference numeral 1 denotes a frame body, and the frame body 1 is provided with ribs 2 for welding and burr escape grooves 3. In FIGS. 3 and 4, 11 is a carbon plastic electrode, 12 is a current collector terminal, and 13 is a current collector brass mesh.
【０００４】[0004]
【発明が解決しようとする課題】前記カーボンプラスチ
ック電極は導電率を高めるために、マトリックスである
高密度ポリエチレンにカーボンブラック等の導電性付与
剤を重量で５０％添加している。一方枠体は、ガラス短
繊維を３０％含んでいる。これらカーボンプラスチック
電極および枠体を振動溶着で一体化しているが、特にカ
ーボンプラスチック電極は導電性付与剤を５０％も含ん
でいるので、枠体との熱溶着が難しい。In order to increase the conductivity of the carbon plastic electrode, a conductivity-imparting agent such as carbon black is added at 50% by weight to the high-density polyethylene matrix. On the other hand, the frame body contains 30% of glass short fibers. The carbon plastic electrode and the frame are integrated by vibration welding. Particularly, since the carbon plastic electrode contains 50% of the conductivity-imparting agent, it is difficult to heat weld the frame to the frame.
【０００５】振動溶着で一体化（溶着）したものは、一
見強固に溶着しているように見えるが、引きはがしを行
ってみると、枠体とカーボンプラスチック電極の界面で
容易に引きはがれてしまう。The one integrated (welded) by vibration welding seems to be strongly welded at first glance, but when peeled off, it is easily peeled off at the interface between the frame and the carbon plastic electrode. .
【０００６】本発明は上述の点に鑑みてなされたもので
その目的は、枠体とカーボンプラスチック電極の界面で
容易に引きはがれない、亜鉛−臭素電池の端板電極の製
造方法を提供することにある。The present invention has been made in view of the above points, and an object thereof is to provide a method for manufacturing an end plate electrode of a zinc-bromine battery which is not easily peeled off at the interface between the frame and the carbon plastic electrode. It is in.
【０００７】[0007]
【課題を解決するための手段】本発明は、カーボンプラ
スチック電極部と絶縁枠体とを溶着により一体化した亜
鉛−臭素電池の端板電極の製造方法において、射出成形
によって絶縁枠体を作製し、低抵抗を有し、複数個が積
層された第１カーボンプラスチック平板の間に電流取り
出し用の金属メッシュを挟むとともに、該第１カーボン
プラスチック平板の積層方向一端に高抵抗を有する第２
カーボンプラスチック平板を配設し、前記金属メッシュ
および第１、第２カーボンプラスチック平板をヒートプ
レスで一体化してカーボンプラスチック電極部を作製
し、前記カーボンプラスチック電極部の第２カーボンプ
ラスチック平板側と前記絶縁枠体とを振動溶着又は熱板
溶着により一体化することを特徴としている。The present invention is a method for manufacturing an end plate electrode of a zinc-bromine battery in which a carbon plastic electrode part and an insulating frame are integrated by welding, and the insulating frame is manufactured by injection molding. A low resistance, a metal mesh for current extraction is sandwiched between a plurality of laminated first carbon plastic flat plates, and a high resistance is provided at one end of the first carbon plastic flat plates in the stacking direction.
A carbon plastic flat plate is disposed, and the metal mesh and the first and second carbon plastic flat plates are integrated by heat pressing to produce a carbon plastic electrode part, and the carbon plastic electrode part is insulated from the second carbon plastic flat plate side. It is characterized in that the frame and the frame are integrated by vibration welding or hot plate welding.
【０００８】[0008]
【作用】本発明の方法で製造した端板電極により引っ張
り試験片を切り出し、引っ張り試験を行ったところ、界
面では剥がれがなくカーボンプラスチック電極母材で破
壊していた。即ち振動溶着界面の強度は従来のものより
数倍以上となる。When a tensile test piece was cut out by the end plate electrode manufactured by the method of the present invention and a tensile test was conducted, no peeling was observed at the interface and it was broken by the carbon plastic electrode base material. That is, the strength of the vibration welding interface is several times or more that of the conventional one.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図面を参照しなが
ら説明する。図１において１２は集電端子、１３は集電
体真ちゅうメッシュ、２１ａ〜２１ｅは低抵抗の第１カ
ーボンプラスチック平板、２２ａ，２２ｂは高抵抗の第
２カーボンプラスチック平板である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 12 is a current collector terminal, 13 is a current collector brass mesh, 21a to 21e are low resistance first carbon plastic flat plates, and 22a and 22b are high resistance second carbon plastic flat plates.
【００１０】（１）まず抵抗値が０．１Ω・ｃｍであ
り、各厚さが１．０ｍｍの第１カーボンプラスチック平
板２１ａ〜２１ｅと、抵抗値が１Ω・ｃｍであり、各厚
さが１．０ｍｍの第２カーボンプラスチック平板２２
ａ，２２ｂを用意した。(1) First, the first carbon plastic flat plates 21a to 21e each having a resistance value of 0.1 Ω · cm and a thickness of 1.0 mm, and the resistance value of 1 Ω · cm and a thickness of 1 Second carbon plastic flat plate 22 of 0.0 mm
a and 22b were prepared.
【００１１】（２）集電体真ちゅうメッシュ１３を、積
層した４枚の第１カーボンプラスチック平板２１ａ〜２
１ｄと１枚の第１カーボンプラスチック平板２１ｅの間
に挟み、さらに第１カーボンプラスチック平板２１ｅの
下に第２カーボンプラスチック平板２２ａ，２２ｂを重
ね、それらをヒートプレスし、厚さ６．５ｍｍに成形し
た。(2) Four first carbon plastic flat plates 21a to 2 in which current collector brass mesh 13 is laminated
It is sandwiched between 1d and one first carbon plastic flat plate 21e, and second carbon plastic flat plates 22a and 22b are further stacked under the first carbon plastic flat plate 21e, and they are heat pressed to form a thickness of 6.5 mm. did.
【００１２】（３）このようにして作製したカーボンプ
ラスチック電極部とは別に射出成形で作製した枠体とカ
ーボンプラスチック電極部とを振動溶着で一体化した。
振動溶着条件は、圧力２０Ｋｇ／ｃｍ2、振幅１．７ｍ
ｍ、時間２ｓｅｃ、周波数２４０ＨZとする（振動溶着
装置はブランソン社製Ｎ−２８００型を用いた）。(3) Separately from the carbon plastic electrode portion thus produced, a frame body produced by injection molding and the carbon plastic electrode portion were integrated by vibration welding.
Vibration welding conditions were pressure 20 Kg / cm 2 and amplitude 1.7 m.
m, the time a time of 2 sec, and frequency 240H Z (vibration welding apparatus using a Branson Co. N-2800 type).
【００１３】（４）前記高抵抗の第２カーボンプラスチ
ック平板２２ａ，２２ｂは導電性付与剤の添加量を４０
％にし、マトリックスである高密度ポリエチレンを６０
％として作製した。(4) The high-resistance second carbon plastic flat plates 22a and 22b have a conductivity-adding agent content of 40.
%, The high density polyethylene matrix is 60
% Was prepared.
【００１４】[0014]
【発明の効果】実施例に基づき一体化して作製した端板
電極を引きはがしてみたところ、界面では剥がれがな
く、カーボンプラスチック電極母材で破壊していた。従
来方法による端板電極と実施例による端板電極より引っ
張り試験片を切り出し、引っ張り試験を行った。その結
果実施例においては、引っ張り破壊強度が１．８２Ｋｇ
／ｍｍ2で破断面はカーボンプラスチック電極母材であ
るのに対し、従来方法においては、引っ張り破壊強度が
０．６Ｋｇ／ｍｍ2で破断面はカーボンプラスチック電
極と枠体との界面であった。EFFECTS OF THE INVENTION When the end plate electrodes integrally manufactured based on the examples were peeled off, there was no peeling at the interface and they were broken by the carbon plastic electrode base material. Tensile test pieces were cut out from the end plate electrode according to the conventional method and the end plate electrode according to the example, and the tensile test was performed. As a result, in the example, the tensile breaking strength was 1.82 Kg.
/ Fracture surface in mm 2 whereas a carbon plastic electrode base material, in the conventional method, the tensile fracture strength fracture surface at 0.6 Kg / mm 2 was the interface between the carbon plastic electrode and the frame.
【００１５】以上の結果より従来例に比較し、本実施例
による振動溶着界面の強度は３倍以上にもなり、この強
度は端板電極溶着部が受ける最大応力の１０倍以上あ
り、十分に安全と言える。From the above results, as compared with the conventional example, the strength of the vibration welding interface according to the present embodiment is 3 times or more, and this strength is 10 times or more of the maximum stress received by the end plate electrode welded portion. Safe to say.
【００１６】またカーボンプラスチック電極部の導電率
に関し、面方向は第１カーボンプラスチック平板という
低抵抗の電極と真ちゅうメッシュの組み合わせのため、
何等問題はなく、厚み方向の導電率は、真ちゅうメッシ
ュが低抵抗の第１カーボンプラスチック平板に挟まれて
いるため、高抵抗の第２カーボンプラスチック平板の影
響は殆どないことが、抵抗測定により判った。Regarding the conductivity of the carbon plastic electrode part, the plane direction is a combination of a low resistance electrode called a first carbon plastic plate and a brass mesh,
There was no problem, and the conductivity in the thickness direction was found to be almost unaffected by the high-resistance second carbon plastic flat plate because the brass mesh was sandwiched between the low-resistance first carbon plastic flat plates. It was
【図１】本発明の方法で製造した端板電極成形品を示す
断面図。FIG. 1 is a cross-sectional view showing an end plate electrode molded product manufactured by the method of the present invention.
【図２】従来の端板電極の枠体の一例を示し、（ａ）は
平面図、（ｂ）はＡ−Ａ′断面図、（ｃ）はＢ拡大図。2A and 2B show an example of a frame body of a conventional end plate electrode, FIG. 2A is a plan view, FIG. 2B is a sectional view taken along line AA ′, and FIG.
【図３】従来の端板電極の電極部の一例を示し、（ａ）
は平面図、（ｂ）は側面図。FIG. 3 shows an example of an electrode portion of a conventional end plate electrode, (a)
Is a plan view and (b) is a side view.
【図４】従来の端板電極の一例を示し、（ａ）は平面
図、（ｂ）はＡ−Ａ′断面図。FIG. 4 shows an example of a conventional end plate electrode, (a) is a plan view and (b) is a sectional view taken along line AA ′.
１…枠体 １２…集電端子 １３…集電体真ちゅうメッシュ ２１ａ〜２１ｅ…第１カーボンプラスチック平板 ２２ａ，２２ｂ…第２カーボンプラスチック平板 DESCRIPTION OF SYMBOLS 1 ... Frame body 12 ... Current collector terminal 13 ... Current collector brass mesh 21a-21e ... 1st carbon plastic flat plate 22a, 22b ... 2nd carbon plastic flat plate
Claims (1)
とを溶着により一体化した亜鉛−臭素電池の端板電極の
製造方法において、 射出成形によって絶縁枠体を作製し、 低抵抗を有し、複数個が積層された第１カーボンプラス
チック平板の間に電流取り出し用の金属メッシュを挟む
とともに、該第１カーボンプラスチック平板の積層方向
一端に高抵抗を有する第２カーボンプラスチック平板を
配設し、前記金属メッシュおよび第１、第２カーボンプ
ラスチック平板をヒートプレスで一体化してカーボンプ
ラスチック電極部を作製し、 前記カーボンプラスチック電極部の第２カーボンプラス
チック平板側と前記絶縁枠体とを振動溶着又は熱板溶着
により一体化することを特徴とする亜鉛−臭素電池の端
板電極の製造方法。1. A method for manufacturing an end plate electrode of a zinc-bromine battery, wherein a carbon plastic electrode part and an insulating frame are integrated by welding, wherein an insulating frame is manufactured by injection molding and has a low resistance. A metal mesh for current extraction is sandwiched between first carbon plastic flat plates in which a plurality of pieces are stacked, and a second carbon plastic flat plate having high resistance is disposed at one end of the first carbon plastic flat plates in the stacking direction. The mesh and the first and second carbon plastic flat plates are integrated by heat pressing to produce a carbon plastic electrode part, and the second carbon plastic flat plate side of the carbon plastic electrode part and the insulating frame are vibration welded or hot plate welded. A method for manufacturing an end plate electrode of a zinc-bromine battery, characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6130716A JPH07335226A (en) | 1994-06-14 | 1994-06-14 | Manufacture of end plate electrode of zinc-bromine battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6130716A JPH07335226A (en) | 1994-06-14 | 1994-06-14 | Manufacture of end plate electrode of zinc-bromine battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07335226A true JPH07335226A (en) | 1995-12-22 |
Family
ID=15040922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6130716A Pending JPH07335226A (en) | 1994-06-14 | 1994-06-14 | Manufacture of end plate electrode of zinc-bromine battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07335226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140134466A (en) * | 2013-05-14 | 2014-11-24 | 롯데케미칼 주식회사 | Electrode current collector for redox flow battery, preparation method for the same, and redox flow battery |
| KR101481173B1 (en) * | 2008-09-11 | 2015-01-12 | 현대자동차주식회사 | End Plate for fuel cell stack |
-
1994
- 1994-06-14 JP JP6130716A patent/JPH07335226A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101481173B1 (en) * | 2008-09-11 | 2015-01-12 | 현대자동차주식회사 | End Plate for fuel cell stack |
| KR20140134466A (en) * | 2013-05-14 | 2014-11-24 | 롯데케미칼 주식회사 | Electrode current collector for redox flow battery, preparation method for the same, and redox flow battery |
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