JPS58163161A - Alkaline zinc storage battery - Google Patents
Alkaline zinc storage batteryInfo
- Publication number
- JPS58163161A JPS58163161A JP57045416A JP4541682A JPS58163161A JP S58163161 A JPS58163161 A JP S58163161A JP 57045416 A JP57045416 A JP 57045416A JP 4541682 A JP4541682 A JP 4541682A JP S58163161 A JPS58163161 A JP S58163161A
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- indium oxide
- carbon fiber
- powder
- indium
- 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
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 29
- 239000011701 zinc Substances 0.000 title claims abstract description 29
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 14
- 239000004917 carbon fiber Substances 0.000 claims abstract description 14
- 229910003437 indium oxide Inorganic materials 0.000 claims abstract description 14
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- IGUXCTSQIGAGSV-UHFFFAOYSA-K indium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[In+3] IGUXCTSQIGAGSV-UHFFFAOYSA-K 0.000 claims abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 239000004020 conductor Substances 0.000 abstract description 5
- 239000011812 mixed powder Substances 0.000 abstract description 4
- 229920003043 Cellulose fiber Polymers 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract description 2
- 229920002554 vinyl polymer Polymers 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007767 bonding agent Substances 0.000 abstract 1
- 238000010000 carbonizing Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 description 2
- 150000004692 metal hydroxides Chemical class 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 1
- -1 zincate ions Chemical class 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
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/244—Zinc electrodes
-
- 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
Abstract
Description
【発明の詳細な説明】
本発明はニッケルー亜鉛蓄電池、銀−亜鉛蓄電池などの
ように負極活物質として亜鉛を用いるアルカリ亜鉛蓄電
池に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to alkaline zinc storage batteries that use zinc as a negative electrode active material, such as nickel-zinc storage batteries and silver-zinc storage batteries.
負極活物質としての亜鉛は、単位重量当りのエネルギー
密度が大きく、且安価である利点を有する反面、充電時
に亜鉛が樹枝状あるいは海綿状に電析するため、充放電
を繰返すと、電析亜鉛がセパレータを貫通して対極に接
し、内野短絡を惹起する欠点がある。Zinc as a negative electrode active material has the advantage of having a high energy density per unit weight and being inexpensive, but on the other hand, since zinc is deposited in a dendritic or spongy form during charging, repeated charging and discharging will cause the deposited zinc to has the disadvantage that it penetrates the separator and comes into contact with the opposite electrode, causing an infield short circuit.
かかる問題に対処するため、電解液量を規制して亜鉛酸
イオンの拡散を防止すると共に亜鉛活物質または電解液
中に各種の金属酸化物又は金属水酸化物を添加すること
が提案されている。その金属酸化物又は金属水酸化物の
１つに酸化インジウム又は水酸化インジウムがある。こ
れは亜鉛の水素過電圧を高めて充電時における亜鉛の樹
枝状結晶の生長を抑制すると共にアルカリ電解液への溶
解度が小さいため、亜鉛極から抜は出すことがほとんど
なく、長期にわたり、添加効果を発揮し、アルカリ亜鉛
蓄電池のサイクル特性の向上に大きく寄与する。In order to deal with this problem, it has been proposed to prevent the diffusion of zincate ions by regulating the amount of electrolyte and to add various metal oxides or metal hydroxides to the zinc active material or electrolyte. . One of the metal oxides or metal hydroxides is indium oxide or indium hydroxide. This increases the hydrogen overvoltage of zinc, suppressing the growth of zinc dendrites during charging, and has low solubility in alkaline electrolytes, so it is almost never removed from the zinc electrode, and the effect of addition is maintained over a long period of time. This greatly contributes to improving the cycle characteristics of alkaline zinc storage batteries.
ところが酸化インジウム又は水酸化インジウムは、充放
電時において、不良導電体として亜鉛極中に存在し、充
放電効率を低下させると共に亜鉛活物質を不活性化して
蓄電池金蓋の低下を惹起する欠点がある。However, indium oxide or indium hydroxide exists in the zinc electrode as a poor conductor during charging and discharging, which reduces the charging and discharging efficiency and inactivates the zinc active material, causing deterioration of the battery cover. be.
本発明はかかる点に鑑み発明されたものにして、炭素繊
維で絡ませた酸化インジウム又は水酸化インジウムを含
有する亜鉛極を備えたアルカリ亜鉛蓄電池を提供せんと
するものであり、酸化インジウム又は水酸化インジウム
を高導電性の炭素繊維で絡ませることにより、酸化イン
ジウム又は水酸化インジウムの不良導電体としての性質
を緩和し、充放電効率を向上すると共にサイクル特性を
向上せんとするものである。The present invention was devised in view of the above, and aims to provide an alkaline zinc storage battery equipped with a zinc electrode containing indium oxide or indium hydroxide entangled with carbon fibers. By entangling indium with highly conductive carbon fibers, the property of indium oxide or indium hydroxide as a poor conductor is alleviated, and the charge/discharge efficiency and cycle characteristics are improved.
以下本発明の一実施例を説明する。An embodiment of the present invention will be described below.
酸化亜鉛粉末８０重置火、金属亜鉛粉末１０重−％、添
加剤として酸化インジウムと炭素繊維を予め充分に混合
したもの５重量％、接着剤としてフッ素樹脂粉末５型盪
％よりなる混合粉末に水を加え、混練した後、ローラに
よりペーストシートを作成する。このシートを銅等より
なる集電体の両面に付着し、加圧成型し、乾燥して亜鉛
極を作成する。上記炭素繊維は、セルロース系繊維ある
洗・はビ＝・ン繊維等を約１０００℃の不活性雰囲気・
７：
′中で加熱焼成して炭化させて得られるもので高導電性
のものである。また酸化インジウムと炭素繊維との混合
比は、１対１乃至１０対１位でよいが、実施例では２対
１である。さらに混合粉末における添加差としては１乃
至２５重量％位でよいが、好ましくは２乃至１０重置火
である。A mixed powder consisting of 80 layers of zinc oxide powder, 10% by weight of metal zinc powder, 5% by weight of a well-mixed indium oxide and carbon fiber as an additive, and 5% by weight of fluororesin powder as an adhesive. After adding water and kneading, a paste sheet is created using rollers. This sheet is attached to both sides of a current collector made of copper or the like, molded under pressure, and dried to produce a zinc electrode. The above-mentioned carbon fibers are made by washing, washing and vinyl fibers such as cellulose fibers in an inert atmosphere at approximately 1000℃.
7: It is highly conductive and is obtained by heating and firing in a medium to carbonize it. Further, the mixing ratio of indium oxide and carbon fibers may be 1:1 to 10:1, but in the embodiment, it is 2:1. Further, the addition difference in the mixed powder may be about 1 to 25% by weight, but preferably 2 to 10 times.
さて上述の如くして得た亜鉛極と公知の焼結式ニッケル
極とを組合せて、ニッケルー亜鉛蓄電池（Ａ）を作成し
た。第１図はこの蓄電池（Ａ）の断面図である。この図
面において、（１）は亜鉛極、（２）はニッケル極、（
３）はセパレータ、（４）は保液層、（５）は電槽、（
６）は電槽蓋、（７１（８）は正負極端子である。A nickel-zinc storage battery (A) was prepared by combining the zinc electrode obtained as described above and a known sintered nickel electrode. FIG. 1 is a sectional view of this storage battery (A). In this drawing, (1) is a zinc electrode, (2) is a nickel electrode, (
3) is a separator, (4) is a liquid retaining layer, (5) is a battery case, (
6) is a battery case lid, and (71 (8) is a positive and negative terminal.
また比較のため、炭素繊維を含有しない亜鉛極を用いる
ことを除いて他は実施例と同一の比較型１’ｌｌ！（Ｂ
）を作成した。For comparison, a comparative type 1'll! which is the same as the example except that a zinc electrode containing no carbon fiber is used! (B
)It was created.
第２図は本発明による蓄電池内と比較電池間のサイクル
特性図である。その充放電サイクル条件は、１５０ｍＡ
で６時間充電した後、１５０ ｍＡ テ放岨し電池電圧
が１．２ｖに達する時点で放電を停止するものである。FIG. 2 is a cycle characteristic diagram between the storage battery according to the present invention and the comparative battery. The charge/discharge cycle condition is 150mA
After charging for 6 hours, the battery discharges at 150 mA and stops discharging when the battery voltage reaches 1.2 V.
第２図から明らかなように、本発明による蓄電池（Ａ＋
のサイクル特性が、比較電池（Ｂ）のそれに比し改善さ
れている。As is clear from FIG. 2, the storage battery (A+
The cycle characteristics of the battery were improved compared to those of the comparative battery (B).
また第３図は５０サイクル時における本発明による蓄電
池内と比較電池ＣＢ＋の放電特性図である。FIG. 3 is a diagram showing the discharge characteristics of the storage battery according to the present invention and the comparative battery CB+ at 50 cycles.
この図面から明らかな如く本発明による蓄電池ｆＡｌの
放電特性が比較電池（Ｂｌのそれに比し優れている。As is clear from this drawing, the discharge characteristics of the storage battery fAl according to the present invention are superior to those of the comparative battery (Bl).
この理由は、炭素繊維が不良導電体である酸化インジウ
ム又は水酸化インジウムに絡みついて、導′岨性を高め
ているためと考えられる。The reason for this is thought to be that the carbon fibers become entangled with indium oxide or indium hydroxide, which are poor conductors, thereby increasing the conductivity.
以上の如く本発明によるアルカリ亜鉛蓄電池は、炭素繊
維で絡ませた酸化インジウム又は水酸化インジウムを含
有する亜鉛極を備えるものであるから、酸化インジウム
又は水酸化インジウムの不良導電体としての性質を高導
電体の炭素繊維により緩和し、アルカリ亜鉛蓄電池の充
放電効率を向上すると共にサイクル特性を向上させるこ
とができ、その工業的価値穴なるものである。As described above, since the alkaline zinc storage battery according to the present invention is equipped with a zinc electrode containing indium oxide or indium hydroxide entangled with carbon fibers, the properties of indium oxide or indium hydroxide as a poor conductor can be improved by making it highly conductive. The carbon fibers in the body can be relaxed and can improve the charging and discharging efficiency of alkaline zinc storage batteries as well as the cycle characteristics, which is the reason for its industrial value.
第１図は本発明によるアルカリ亜鉛蓄電池の一実施例を
示す断面図。第２図は本発明による蓄電池と比較電池の
サイクル特性図、第３図は５０サイクル時における本発
明による蓄電池と比較電池の放電特性図である。
（１）・・亜鉛極FIG. 1 is a sectional view showing an embodiment of an alkaline zinc storage battery according to the present invention. FIG. 2 is a cycle characteristic diagram of the storage battery according to the present invention and a comparative battery, and FIG. 3 is a discharge characteristic diagram of the storage battery according to the present invention and the comparative battery at 50 cycles. (1)...Zinc electrode
Claims (1)
ンジウムを含有する亜鉛極を備えたアルカリ亜鉛蓄電池
。(1) Alkaline zinc storage battery with zinc electrodes containing indium oxide or indium hydroxide entangled with carbon fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57045416A JPS58163161A (en) | 1982-03-19 | 1982-03-19 | Alkaline zinc storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57045416A JPS58163161A (en) | 1982-03-19 | 1982-03-19 | Alkaline zinc storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58163161A true JPS58163161A (en) | 1983-09-27 |
Family
ID=12718653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57045416A Pending JPS58163161A (en) | 1982-03-19 | 1982-03-19 | Alkaline zinc storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58163161A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011017655A1 (en) * | 2009-08-07 | 2011-02-10 | Powergenix Systems, Inc. | Carbon fiber zinc negative electrode |
-
1982
- 1982-03-19 JP JP57045416A patent/JPS58163161A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011017655A1 (en) * | 2009-08-07 | 2011-02-10 | Powergenix Systems, Inc. | Carbon fiber zinc negative electrode |
| CN102484246A (en) * | 2009-08-07 | 2012-05-30 | 鲍尔热尼系统公司 | Carbon fiber zinc negative electrode |
| US9947919B2 (en) | 2009-08-07 | 2018-04-17 | Zincfive Power, Inc. | Carbon fiber zinc negative electrode |
| US10763495B2 (en) | 2009-08-07 | 2020-09-01 | Zincfive Power, Inc. | Carbon fiber zinc negative electrode |
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