JPS5825085A - Zinc alkaline secondary battery - Google Patents
Zinc alkaline secondary batteryInfo
- Publication number
- JPS5825085A JPS5825085A JP56122666A JP12266681A JPS5825085A JP S5825085 A JPS5825085 A JP S5825085A JP 56122666 A JP56122666 A JP 56122666A JP 12266681 A JP12266681 A JP 12266681A JP S5825085 A JPS5825085 A JP S5825085A
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- electrode
- secondary battery
- iron
- sheet
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は亜鉛を負極とする亜鉛アルカリニ次電池の改ｊ
ＬＫ関するものであり、亜鉛極より遊離せる亜鉛をｍ−
カルセルメカニズムにより溶解して再利用せしめんとす
るものである。[Detailed description of the invention] The present invention is a modification of a zinc-alkaline secondary battery using zinc as a negative electrode.
It is related to LK, and the zinc that can be liberated from the zinc electrode is m-
It is intended to be dissolved and reused using the carcel mechanism.
従来二、ケル亜鉛二次電池においてＦｉ１１１図＾に示
す如く亜鉛極１から成長する亜鉛のデンドライト２が放
電時に先端部を残して放電利用されるため長い間の充放
電サイクルによ、ａｉｉＥｚｍ亀に示す如く電池の極板
＃１と電槽４との間！！ｌ１ｉｌｌＫ電池反応に関与し
ない遊離した金属状亜鉛５が蓄積されムしたがりて電池
内で有効に作用する活物質量は減少し、亜鉛極の放電容
量を減少せしめるものであった。Conventionally, in Kelzinc secondary batteries, as shown in Fig. Fi111, the zinc dendrites 2 that grow from the zinc electrode 1 are used for discharging, leaving their tips intact during discharging. As shown, between the battery plate #1 and the battery case 4! ! Free metallic zinc 5, which does not participate in the IllIllK battery reaction, tends to accumulate, and therefore the amount of active material that can effectively act within the battery decreases, resulting in a decrease in the discharge capacity of the zinc electrode.
本発明はかかる欠点を改善せんとして鋭意研究を行った
結果、充放電サイクル中に亜鉛負極より遊離して金属状
亜鉛を溶解せしめて有効に再利用を図シ、亜鉛活物質量
の減少するのを抑制せしめんとする亜鉛アルカリニ次電
池を見出したものである。即ち本発明は亜鉛を負極とす
る極板群と電槽との間隙部に鉄、二ψケル、グラファイ
ト等の亜鉛より水素過電圧の低い導電性シートを装着し
たことを特徴とするものである。As a result of extensive research aimed at improving these drawbacks, the present invention aims to effectively reuse metallic zinc liberated from the zinc negative electrode during charge/discharge cycles by dissolving it, thereby reducing the amount of zinc active material. We have discovered a zinc-alkaline secondary battery that suppresses this. That is, the present invention is characterized in that a conductive sheet, such as iron, nickel, graphite, etc., which has a lower hydrogen overvoltage than zinc, is installed in the gap between the electrode plate group having zinc as the negative electrode and the battery case.
本発明は極板群の外部に遊離した金属状亜鉛をローカル
セルメカニズムにより電解液中に溶解させこれを亜鉛極
に電析させて再利用するもので、下式に示す如く金属状
亜鉛を溶解せしめるためには導電性にして亜鉛より水素
過電圧の低い導電性物質を接触せしめることによシ溶解
する。In the present invention, metallic zinc liberated outside the electrode plate group is dissolved in an electrolytic solution using a local cell mechanism and then deposited on a zinc electrode for reuse. In order to do this, it is dissolved by bringing into contact with a conductive substance that is conductive and has a lower hydrogen overvoltage than zinc.
Ｚｎ−＋Ｚｎ”＋２ｔ ・・
・（１）２Ｈ２０＋２ｔ→２０Ｈ−＋ ［２↑
・・・（２）この場合導電性物質は正極又は負
極に接続する必要はない、又モノ４レータ−に亜鉛極イ
オン等の透過を抑制したものを用いると溶解した亜鉛酸
イオンが蓄積され、やがて溶解度以上に達すると水酸化
亜鉛、酸化亜鉛の減となり極板群の外部で堆積し、亜鉛
活物質の減少となる。したがって溶解し九亜鉛が電極に
析出し再利用され島くするためにセ／？レータとして亜
鉛酸イオン、Ｈ２Ｏ・ＯＨ−等を容易に透過させるもの
を用いることが好ましい。Zn-+Zn"+2t...
・(1) 2H20+2t→20H−+ [2↑
...(2) In this case, there is no need to connect the conductive substance to the positive or negative electrode, and if a mono-quaternary material that suppresses the permeation of zinc electrode ions is used, dissolved zincate ions will accumulate, When the solubility is eventually reached, zinc hydroxide and zinc oxide decrease and are deposited outside the electrode group, resulting in a decrease in zinc active material. Therefore, dissolved zinc is deposited on the electrode and reused to form an island. It is preferable to use a filter that easily transmits zincate ions, H2O.OH-, and the like.
次に本＃ｌｌ１ｌＩｌの１例を図面によシ詳細に説明す
る。第３図■に示す如く電槽４と極板群３との間隙部に
ニッケル焼結体、二、ケル金網、ニッケル板、鉄焼結体
、鉄金網、鉄板、グラファイト板、多孔性グラファイト
シート等の導電性物質のシート６を装着したものである
。Next, an example of the book #ll1lll will be explained in detail with reference to the drawings. As shown in Figure 3 (■), in the gap between the battery case 4 and the electrode plate group 3, there is a nickel sintered body, a Kel wire mesh, a nickel plate, an iron sintered body, an iron wire mesh, an iron plate, a graphite plate, a porous graphite sheet. A sheet 6 of a conductive material such as the above is attached.
父上記導電性シート６を設ける場合、両側が正極となる
極板群構成においては第３図（Ｂ）に示す図面において
極板と直角方向になる面＆ ＊ ＠’に配置すればよく
、負極が両側になる極板構成においてはｔｅａ’＊ｂｓ
ｂ’に配置することが望ましい、又極板群と電槽との間
隙部が２■以下の如く狭い場合には電槽内部壁に導電性
シートを固定してもよい、また極板群１と導電性シート
６間にナイロンクロス等の隔離物質を配置してもよい。When the conductive sheet 6 is provided, in a plate group configuration in which both sides are positive electrodes, it is sufficient to place it on the surface & * @' which is perpendicular to the electrode plates in the drawing shown in FIG. In the plate configuration where is on both sides, tea'*bs
If the gap between the electrode plate group and the battery case is narrow, such as 2 cm or less, a conductive sheet may be fixed to the inner wall of the battery case. An isolation material such as nylon cloth may be placed between the conductive sheet 6 and the conductive sheet 6.
ナオ七ノ々レータとしてＦｉ／リエチレン％／ＩＪプロ
ピレン等の微多孔性フィルム、含水性良好な不織布、間
隙を保持する丸めのナイロンクロスを使用する。A microporous film such as Fi/Liethylene%/IJ propylene, a nonwoven fabric with good water absorption, and a rounded nylon cloth that maintains the gap are used as the Nao-Nanonolator.
本発明亜鉛アルカリニ次電池によれば亜鉛のデンドライ
ト等がニッケル焼結板等の導電性物質シートに接触して
遊離し友金属状亜鉛を溶解せしめ、この亜鉛を有効に再
利用することが出来て電池の放電容量の低下を防止し得
かつ金属状亜鉛を溶解して電解液中に亜鉛イオンを常に
存在せしめ得る為亜鉛テンドライトの生長を抑制し短絡
を防止する等顕著な効果を有する。According to the zinc-alkaline secondary battery of the present invention, zinc dendrites and the like come into contact with a conductive material sheet such as a nickel sintered plate and are liberated to dissolve friend-metallic zinc, making it possible to effectively reuse this zinc. It can prevent a decrease in the discharge capacity of the battery, and it can dissolve metallic zinc so that zinc ions are always present in the electrolyte, so it has remarkable effects such as suppressing the growth of zinc tendrites and preventing short circuits.
第１図は亜鉛アルカリニ次電池において亜鉛。Figure 1 shows zinc in a zinc-alkaline secondary battery.
負極から析出遊離する金属状亜鉛の状態を示す概略説明
図、第２図は遊離し友金属状亜鉛の蓄積し友状態の概略
説明図、第３図ムは本発明亜鉛アルカリニ次電池の１例
を示す断面図、第３図ＢＦｉ本発明亜鉛アルカリニ次電
池において極板群と導電性物質との位置関係を示す概略
説明図である。A schematic explanatory diagram showing the state of metallic zinc precipitated and liberated from the negative electrode, Fig. 2 is a schematic explanatory diagram of the state in which free metallic zinc accumulates, and Fig. 3 is an example of the zinc-alkaline secondary battery of the present invention. FIG. 3B is a schematic explanatory diagram showing the positional relationship between the electrode plate group and the conductive material in the zinc-alkaline secondary battery of the present invention.
１・・・亜鉛負極、２・・・亜鉛テンドライト、３・・
・極板群、４・・・電槽、５・・・金属状亜鉛、６・・
・導電性物質シート。1... Zinc negative electrode, 2... Zinc tendrite, 3...
・Electrode plate group, 4... Battery case, 5... Metallic zinc, 6...
・Conductive material sheet.
出願人代理人 弁理士 鈴 江 武 彦第１ＩＩ （Ａ） （Ｂ） 第３ 第２１１１ −３しApplicant's agent: Patent attorney Suzue Takehiko No. 1 II (A) (B) Third 2111th -3
Claims (1)
ケル、グラファイト等の亜鉛より水素過電圧の低い導電
性シートを装着し九ことを特徴とする亜鉛アルカリニ次
電池。Iron, two,
A zinc-alkaline secondary battery characterized in that it is equipped with a conductive sheet that has a lower hydrogen overvoltage than zinc, such as carbon fiber or graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56122666A JPS5825085A (en) | 1981-08-05 | 1981-08-05 | Zinc alkaline secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56122666A JPS5825085A (en) | 1981-08-05 | 1981-08-05 | Zinc alkaline secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5825085A true JPS5825085A (en) | 1983-02-15 |
Family
ID=14841624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56122666A Pending JPS5825085A (en) | 1981-08-05 | 1981-08-05 | Zinc alkaline secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5825085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373680C (en) * | 2005-03-14 | 2008-03-05 | 河南环宇集团有限公司 | Dynamic column sealed Zn-Ni alkaline battery |
| JP2018152175A (en) * | 2017-03-10 | 2018-09-27 | 日立化成株式会社 | Zinc negative electrode secondary battery |
-
1981
- 1981-08-05 JP JP56122666A patent/JPS5825085A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373680C (en) * | 2005-03-14 | 2008-03-05 | 河南环宇集团有限公司 | Dynamic column sealed Zn-Ni alkaline battery |
| JP2018152175A (en) * | 2017-03-10 | 2018-09-27 | 日立化成株式会社 | Zinc negative electrode secondary battery |
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