JPH03219558A - Paste type cadmium electrode for alkaline storage battery - Google Patents
Paste type cadmium electrode for alkaline storage batteryInfo
- Publication number
- JPH03219558A JPH03219558A JP2015717A JP1571790A JPH03219558A JP H03219558 A JPH03219558 A JP H03219558A JP 2015717 A JP2015717 A JP 2015717A JP 1571790 A JP1571790 A JP 1571790A JP H03219558 A JPH03219558 A JP H03219558A
- Authority
- JP
- Japan
- Prior art keywords
- cadmium
- electrode
- charging
- nickel hydroxide
- powder
- 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.)
- Granted
Links
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 title claims description 41
- 229910052793 cadmium Inorganic materials 0.000 title claims description 36
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims abstract description 29
- 239000011149 active material Substances 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 5
- 230000000996 additive effect Effects 0.000 claims abstract description 5
- 229910052738 indium Inorganic materials 0.000 claims description 22
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 22
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 claims description 7
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 9
- 239000013078 crystal Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000012798 spherical particle Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 150000001661 cadmium Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- PLLZRTNVEXYBNA-UHFFFAOYSA-L cadmium hydroxide Chemical compound [OH-].[OH-].[Cd+2] PLLZRTNVEXYBNA-UHFFFAOYSA-L 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、アルカリ蓄電池の負極に用いられるアルカリ
蓄電池用ペースト式カドミウム電極に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a paste-type cadmium electrode for alkaline storage batteries, which is used as the negative electrode of alkaline storage batteries.
ニッケルーカドミウム蓄電池等のアルカリ蓄電池に用い
られるカドミウム電極としては、製造が簡易で、コスト
の安いペースト式の如き非焼結式カドミウム電極が広く
普及している。この種のカドミウム電極は、例えば酸化
カドミウム粉末又は水酸化カドミウム粉末等のカドミウ
ム活物質を糊料液と共に混練して形成したペーストを、
導電芯体に塗着、乾燥して製造される。ところが、この
カドミウム電極を用いた電池の充放電サイクル寿命は、
焼結式カドミウム電極を用いた電池と比べると短いとい
う欠点がある。As cadmium electrodes used in alkaline storage batteries such as nickel-cadmium storage batteries, non-sintered cadmium electrodes such as paste-type cadmium electrodes, which are easy to manufacture and inexpensive, are widely used. This type of cadmium electrode uses a paste formed by kneading a cadmium active material such as cadmium oxide powder or cadmium hydroxide powder with a glue liquid.
Manufactured by coating on a conductive core and drying. However, the charge/discharge cycle life of a battery using this cadmium electrode is
The drawback is that it is shorter than batteries using sintered cadmium electrodes.
これは、上記方法により製造された非焼結式カドミウム
電極が、一般に充放電サイクルを繰り返すと容量が劣化
することに起因する。This is because the capacity of the non-sintered cadmium electrode manufactured by the above method generally deteriorates when charging and discharging cycles are repeated.
この対策として、例えば特公昭５７−３７９８６号公報
には、酸化カドミウムと、平均粒径が３〜１２μｍであ
って球状の金属カドミウムと、水酸化ニッケル０．１〜
５％とを混和して、非焼結式カドミウム電極とすること
が提案されている。このようにすることで、電池の充放
電サイクルの進行に伴うカドミウム活物質の不活性化に
起因する容量劣化を抑制可能としている。As a countermeasure against this, for example, Japanese Patent Publication No. 57-37986 discloses that cadmium oxide, spherical metal cadmium with an average particle size of 3 to 12 μm, and nickel hydroxide of 0.1 to
It has been proposed that a non-sintered cadmium electrode be obtained by mixing 5% of cadmium with 5% of cadmium. By doing so, it is possible to suppress capacity deterioration due to inactivation of the cadmium active material as the charge/discharge cycle of the battery progresses.
また、このようなペースト式のカドミウム電極は、予備
充電物質として金属カドミウム粉末を添加使用する必要
があるが、前記金属カドミウム粉末は活性度が低く、電
極を構成した場合、活物質の利用率が低下する。そこで
、例えば特開昭６２２４３２５４号公報に開示された如
く、金属カドミウムにインジウムを０．０５〜２．００
重量％含有させて、カドミウム電極の利用率の向上を計
っている。In addition, such paste-type cadmium electrodes require the addition of metal cadmium powder as a pre-charging material, but the metal cadmium powder has low activity and when forming the electrode, the utilization rate of the active material is low. descend. Therefore, as disclosed in JP-A-62243254, for example, 0.05 to 2.00 of indium is added to metal cadmium.
% by weight to improve the utilization rate of the cadmium electrode.
（ハ） 発明が解決しようとする課題
しかしながら、前記インジウム添加により利用率の向上
を計り、且つ水酸化ニッケルを更にペースト中に添加す
ることによりザイクル特性の向上を得ようとすると、新
たな問題が生してきた。(c) Problems to be Solved by the Invention However, when attempting to improve the utilization rate by adding indium and also to improve cycle characteristics by further adding nickel hydroxide to the paste, a new problem arises. I have lived.
即ち、インジウムを含有せる金属カドミウムを用いペー
スト式カドミウム電極としここに水酸化ニッケルを添加
した場合、インジウムの含有量が多くなると、電池の充
電挙動が大きく変化し、充電ピーク電圧が上昇し、イン
ジウムの含有量が少ないものと比較して、充電カーブが
大きく異なってしまう。In other words, when a paste-type cadmium electrode is made using metal cadmium containing indium and nickel hydroxide is added thereto, when the indium content increases, the charging behavior of the battery changes greatly, the charging peak voltage increases, and the indium The charging curve will be significantly different compared to one with a small content of .
その結果、−△Ｖカット充電方式で充電した場合には、
電池が満充電になる迄に充電が停止ヒしてしまい、十分
に充電ができないという問題が生しる。よって電池の容
量が、十分に得られなくなってしまう。As a result, when charging with the -△V cut charging method,
The problem arises that charging stops before the battery is fully charged, resulting in insufficient charging. Therefore, the capacity of the battery cannot be obtained sufficiently.
本発明はかかる問題点に鑑みてなされたものであって、
充電時の充電ピーク電圧の」１昇を抑え、充電カーブの
変動を抑制して十分に充電することにより、その電池容
量を発揮しうるアルカリ蓄電池用ペースト式カドミウム
電極を提案するものである。The present invention has been made in view of such problems, and includes:
This paper proposes a paste-type cadmium electrode for alkaline storage batteries that can exhibit its battery capacity by suppressing the charge peak voltage from increasing by 1" during charging, suppressing fluctuations in the charging curve, and fully charging the battery.
（ニ）課題を解決するための手段
本発明は、活物質としての酸化カドミウム粉末及びイン
ジウムを含有する金属カドミウム粉末と、添加剤として
の水酸化ニッケル粉末とからなるペーストが導電芯体に
塗着されたアルカリ蓄電池用ペースト式カドミウム電極
であって、前記インジウム量を前記活物質に対して、０
００２重量％〜０．０５０重量％とするものである。(d) Means for Solving the Problems The present invention is characterized in that a paste consisting of cadmium oxide powder and indium-containing metal cadmium powder as active materials and nickel hydroxide powder as an additive is applied to a conductive core. A paste-type cadmium electrode for an alkaline storage battery, wherein the amount of indium is 0 relative to the active material.
0.002% to 0.050% by weight.
（ホ）作 用
本発明の如く、金属カドミウム粉末と酸化カドミウム粉
末からなる活物質に対して、インジウムの含有量を、０
．００２重量％〜０．０５０重竜％に設定することによ
り、充電時における充電ピーク電圧の上昇を抑え、充電
カーブの変動を抑制することができる。その結果、がが
る電池が十分に充電でき容量が十分に得られると共に、
ペースト式カドミウム電極に注目すると、インジウムを
含有することに基づき利用率向上効果と水酸化ニッケル
添加に基づくサイクル特性向上効果とが十分に発揮され
る。(e) Effect As in the present invention, the indium content is reduced to 0 for the active material consisting of metal cadmium powder and cadmium oxide powder.
．． By setting it to 0.002% by weight to 0.050% by weight, it is possible to suppress an increase in the charging peak voltage during charging and to suppress fluctuations in the charging curve. As a result, the Gagaru battery can be charged sufficiently and has sufficient capacity.
Focusing on paste-type cadmium electrodes, the effect of improving the utilization rate due to the inclusion of indium and the effect of improving cycle characteristics due to the addition of nickel hydroxide are fully exhibited.
尚、ここで使用する水酸化ニッケルとしては、粒子形状
が球状であるものが好ましい。この球状という意味は、
電子顕微鏡観察下において球状或いはそれに近い形状と
して観察されることであり、通常用いられる無定形のも
のとは明確に区別される。また、この粒子形状が球状の
水酸化ニッケルは、アルカリ溶液と酸性ニッケル塩溶液
との反応を、温度、ｐＨ等をコントロール憚ることによ
り作製したものである。The nickel hydroxide used here preferably has a spherical particle shape. This spherical meaning is
It is observed under an electron microscope as a spherical shape or a shape close to it, and is clearly distinguished from the normally used amorphous shape. Further, this nickel hydroxide having a spherical particle shape was produced by controlling the temperature, pH, etc. of the reaction between an alkaline solution and an acidic nickel salt solution.
そして、この球状の水酸化ニッケルが好ましい理由は、
次の理由に基づく。従来より使用されている水酸化ニッ
ケル粉末の粒子形状は、無定形である。この無定形の水
酸化ニッケルは不安定なために、アルカリ電解液中の充
放電時に、その結晶中に微量含まれるＮ０９−１Ｓ０４
−等の電池の保存特性に悪影響を与える不純物を、活物
質層中に放出し、電池の保存特性を劣化させてしまう。The reason why this spherical nickel hydroxide is preferable is
Based on the following reasons. The particle shape of conventionally used nickel hydroxide powder is amorphous. This amorphous nickel hydroxide is unstable, so when it is charged and discharged in an alkaline electrolyte, a small amount of N09-1S04 is contained in its crystals.
Impurities that adversely affect the storage characteristics of the battery, such as -, are released into the active material layer, resulting in deterioration of the storage characteristics of the battery.
方、本発明に用いられる粒子形状が球状である水酸化ニ
ッケルは、極めて安定であるため、アルカリ電解液中の
充放電時においても、その結晶中に微量含まれるＮＯ，
−１Ｓ○４−等の電池の保存特性に悪影響を与える不純
物を活物質層中に放出し難い。その結果、かかる負極を
用いた電池の保存特性の劣化が抑制されると共に、ザイ
クル特性においても優れたアルカリ蓄電池が提供できる
。On the other hand, the nickel hydroxide used in the present invention, which has a spherical particle shape, is extremely stable, so even during charging and discharging in an alkaline electrolyte, trace amounts of NO and NO contained in its crystals are removed.
It is difficult to release impurities such as -1S○4- which adversely affect the storage characteristics of the battery into the active material layer. As a result, deterioration in storage characteristics of a battery using such a negative electrode is suppressed, and an alkaline storage battery with excellent cycle characteristics can be provided.
この添加する水酸化ニッケルの平均粒径としては、１．
５μｍ以上であれば、特にその効果が顕著となることを
実験により確かめた。その理由は、添加せる水酸化ニッ
ケルの平均粒径が１．５μｍ以上であれば、平均粒径が
１．５μｍ未満のものと比べて、カドミウム活物質の結
晶間に存在する前記水酸化ニッケル粒子酸いはニッケル
イオンの吸着によって、電解液中に溶解するカドミウム
量が減少すること及びカドミウム活物質の結晶の粗大化
を抑制することに起因すると考えられる。The average particle size of the nickel hydroxide to be added is 1.
It has been confirmed through experiments that the effect is particularly significant when the thickness is 5 μm or more. The reason for this is that if the average particle size of the nickel hydroxide to be added is 1.5 μm or more, the nickel hydroxide particles existing between the crystals of the cadmium active material It is thought that the acidity is caused by the adsorption of nickel ions, which reduces the amount of cadmium dissolved in the electrolytic solution and suppresses coarsening of the crystals of the cadmium active material.
但し、水酸化ニッケルの平均粒径が２００μｍを超える
と、カドミウム負極中へ水酸化ニッケルを均一に添加す
るのが難しくなり、好ましくない。However, if the average particle size of nickel hydroxide exceeds 200 μm, it becomes difficult to uniformly add nickel hydroxide into the cadmium negative electrode, which is not preferable.
したがって、水酸化ニッケルの平均粒径は１．５〜２０
０μｍであることが望ましい。Therefore, the average particle size of nickel hydroxide is 1.5-20
It is desirable that the thickness be 0 μm.
また、この水酸化ニッケルの添加量は、活物質に対して
０．５重量％以上３．０重量％以下とするのが、サイク
ル特性上好ましい。Further, from the viewpoint of cycle characteristics, it is preferable that the amount of nickel hydroxide added is 0.5% by weight or more and 3.0% by weight or less based on the active material.
（へ）実施例 以下に、本発明の実施例と比較例との対比に言及する。(f) Example Below, reference will be made to a comparison between examples of the present invention and comparative examples.
■ 水酸化ニッケルを添加せる電極板
所定量のインジウムを含むカドミウム塩溶液と亜鉛粉末
を反応させて生成した、平均粒径１．５μｍの置換金属
カドミウム粉末１０重量％と、酸化カドミウム粉末９０
重量％を用意する。■ Electrode plate to which nickel hydroxide is added 10% by weight of substituted metal cadmium powder with an average particle size of 1.5 μm, produced by reacting a cadmium salt solution containing a predetermined amount of indium with zinc powder, and 90% by weight of cadmium oxide powder.
Prepare the weight percentage.
これを活物質とし、ここに添加剤としての平均粒径５μ
ｍの水酸化ニッケル粉末１重量％に、補強剤としてのア
クリル短繊維０．５重量％、結着剤としてのメチルセル
ロース０．８重量％、酸化カドミウムの水和を抑制する
リン酸ナトリウムを含む水４０重量％の溶液を加え、混
練してペースト状にした。このペーストをパンチングメ
タルよりなる導電芯体の画面に塗着、乾燥し、所定の寸
法に切断して、公称容量１．２Ａ）Ｉのカドミウム電極
板を作製した。This is used as an active material, and an average particle size of 5 μ as an additive is added here.
1% by weight of nickel hydroxide powder, 0.5% by weight of acrylic short fibers as a reinforcing agent, 0.8% by weight of methylcellulose as a binder, and water containing sodium phosphate to suppress hydration of cadmium oxide. A 40% by weight solution was added and kneaded to form a paste. This paste was applied to the screen of a conductive core made of punched metal, dried, and cut into predetermined dimensions to produce a cadmium electrode plate with a nominal capacity of 1.2 A)I.
■ 水酸化ニッケル添加をしない電極板前記工程で水酸
化ニッケル粉末の添加を行わない以外は同様にしてペー
スト式カドミウム電極板を得た。(2) Electrode plate without addition of nickel hydroxide A paste-type cadmium electrode plate was obtained in the same manner except that nickel hydroxide powder was not added in the above step.
前記■において、インジウムの含有量を活物質に対して
、Ｏｌｏ、００１．０．００２．０．０１．０．０５．
０．０７５．０．１０重量％と変化させ、それぞれカド
ミウム負極ａ１、ａ２、ａ３、ａ４、ａ５、ａ６、ａ７
とした。In the above (2), the indium content relative to the active material is Olo, 001.0.002.0.01.0.05.
Cadmium negative electrodes a1, a2, a3, a4, a5, a6, a7 respectively
And so.
また前記■において、インジウムの含有量を活物質に対
して、０．０．００１．０．００２．０．０１．０．０
５．００７５．０．１０重量％と変化させ、それぞれカ
ドミウム負極ｂ１、ｂ２、ｂｌ、ｂ４、ｂ５、ｂ６、ｂ
７とした。In addition, in the above (2), the indium content is 0.0.001.0.002.0.01.0.0 with respect to the active material.
5.0075.0.10% by weight, respectively, cadmium negative electrodes b1, b2, bl, b4, b5, b6, b
It was set at 7.
そして、これら負極ａ１〜ａ７及び負極ｂ１〜ｂ７を用
い、公知の焼結式ニッケル正極と組み合わせ、それぞれ
密閉式アルカリ蓄電池Ａ１〜Ａ７及びＢ１〜Ｂ７を作製
した。Then, these negative electrodes a1 to a7 and negative electrodes b1 to b7 were combined with a known sintered nickel positive electrode to produce sealed alkaline storage batteries A1 to A7 and B1 to B7, respectively.
（ここで本発明カドミウム電極はａ３、ａ４、ａｌ、本
発明電池はＡ３、Ａ４、Ａ、である。）◎ 実＠１
前記負極ａ１〜ａ６及び負ｆｌｉｂ１〜ｂ６を用い、利
用率を測定した。この時の測定条件は、２５％の水酸化
カリウム溶液中において、０．３Ａの電流にて理論容量
の１６％迄充電した後、放電電流０．５Ａで放電すると
いうものである。この結果を第１図に示す。(Here, the cadmium electrodes of the present invention are A3, A4, and Al, and the batteries of the present invention are A3, A4, and A.) ◎ Actual @1 The utilization rate was measured using the negative electrodes a1 to a6 and negative flib1 to b6. . The measurement conditions at this time were to charge to 16% of the theoretical capacity with a current of 0.3 A in a 25% potassium hydroxide solution, and then discharge with a discharge current of 0.5 A. The results are shown in FIG.
この結果より、インジウム量を、活物質に対して０．０
０２重量％以上とすることにより、負極の利用率を向」
ニさせることが可能となる。このような傾向は、水酸化
ニッケルの添加の有無にかかわらず、観察された。From this result, the amount of indium is 0.0 with respect to the active material.
02% by weight or more, the utilization rate of the negative electrode can be improved.
This makes it possible to Such a tendency was observed regardless of whether nickel hydroxide was added or not.
◎ 実験２
前記せる電池Ａ０、Ａ４、Ａ６、Ａ６、Ａ７及びＢ１、
Ｂ４、Ｂ６、Ｂ６、Ｂ７を用い、活物質中のインジウム
貴変化に伴う、充電ピーク電圧の変化を調べた。この時
の充電は、電池公称容量の１５Ｃ（１，８Ａ）で行った
。この結果を、第２図に示す。◎ Experiment 2 The above batteries A0, A4, A6, A6, A7 and B1,
Using B4, B6, B6, and B7, changes in charging peak voltage due to changes in indium nobleness in the active material were investigated. Charging at this time was performed at the battery's nominal capacity of 15 C (1.8 A). The results are shown in FIG.
これより水酸化ニッケルの添加を行なわない電池Ｂ１、
Ｂ４、Ｂ６、Ｂ４、Ｂ７は、はとんど充電ピーク電圧が
変化しないことがわかる。一方、水酸化ニッケルの添加
を行った電池Ａ１、Ａ４、Ａ１、Ａ６、Ａ７は、インジ
ウム量の増加に伴い、充電ピーク電圧が高くなる傾向が
ある。この結果より、充電ピーク電圧の上昇を抑え、充
電カーブの変動を抑制するには、インジウム量を０．０
５０重量％以下とする必要がある。From this, battery B1 without the addition of nickel hydroxide,
It can be seen that for B4, B6, B4, and B7, the charging peak voltage hardly changes. On the other hand, batteries A1, A4, A1, A6, and A7 to which nickel hydroxide was added tend to have higher charging peak voltages as the amount of indium increases. From this result, in order to suppress the rise in the charging peak voltage and suppress the fluctuation of the charging curve, the amount of indium should be reduced to 0.0.
It needs to be 50% by weight or less.
以上、前記実験１及び前記実験２の結果より、インジウ
ム量をカドミウムからなる活物質に対して０．００２重
量％以上０．０５０重量％以下とする必要がある。As described above, from the results of Experiment 1 and Experiment 2, it is necessary to set the amount of indium to 0.002% by weight or more and 0.050% by weight or less based on the active material made of cadmium.
（ト）発明の効果
本発明のペースト式カドミウム電極によれば、充電時の
充電ピーク電圧の上昇を抑え、充電カーブの変動を抑制
し、十分に充電可能となり、その電池容量を発揮するこ
とができる。また、このペースト式カドミウム電極にあ
っては、インジウムを含有することに基づく利用率向上
効果と、水酸化ニッケル添加に基づくサイクル特性向上
効果とが十分に発揮され、放電特性に優れたアルカリ蓄
電池が提供でき、その工業的価値は極めて大きい。(g) Effects of the Invention According to the paste-type cadmium electrode of the present invention, the rise in the charging peak voltage during charging is suppressed, the fluctuation of the charging curve is suppressed, and sufficient charging is possible, making it possible to demonstrate the battery capacity. can. In addition, this paste-type cadmium electrode fully exhibits the utilization rate improvement effect due to the indium content and the cycle characteristic improvement effect due to the addition of nickel hydroxide, making it an alkaline storage battery with excellent discharge characteristics. The industrial value is extremely large.
第１図はインジウム量と負極の利用率との関係を示す図
、第２図はインジウム量と電池の充電ピーク電圧との関
係を示す図である。
１
−３７３＝FIG. 1 is a diagram showing the relationship between the amount of indium and the utilization rate of the negative electrode, and FIG. 2 is a diagram showing the relationship between the amount of indium and the charging peak voltage of the battery. 1 -373=
Claims (1)
ムを含有する金属カドミウム粉末と、添加剤としての水
酸化ニッケル粉末とからなるペーストが導電芯体に塗着
された電極であって、 前記インジウム量が前記活物質に対して、 ０．００２重量％〜０．０５０重量％であることを特徴
とするアルカリ蓄電池用ペースト式カドミウム電極。(1) An electrode in which a paste consisting of cadmium oxide powder and indium-containing metal cadmium powder as active materials and nickel hydroxide powder as an additive is applied to a conductive core, wherein the amount of indium is A paste-type cadmium electrode for an alkaline storage battery, characterized in that the content is 0.002% to 0.050% by weight based on the active material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015717A JP2950878B2 (en) | 1990-01-25 | 1990-01-25 | Paste cadmium electrode for alkaline storage batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015717A JP2950878B2 (en) | 1990-01-25 | 1990-01-25 | Paste cadmium electrode for alkaline storage batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03219558A true JPH03219558A (en) | 1991-09-26 |
| JP2950878B2 JP2950878B2 (en) | 1999-09-20 |
Family
ID=11896519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015717A Expired - Fee Related JP2950878B2 (en) | 1990-01-25 | 1990-01-25 | Paste cadmium electrode for alkaline storage batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2950878B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013077406A (en) * | 2011-09-30 | 2013-04-25 | Sanyo Electric Co Ltd | Alkali storage battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5737986B2 (en) | 2011-02-08 | 2015-06-17 | 朝日電装株式会社 | Tilt position detector |
-
1990
- 1990-01-25 JP JP2015717A patent/JP2950878B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013077406A (en) * | 2011-09-30 | 2013-04-25 | Sanyo Electric Co Ltd | Alkali storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2950878B2 (en) | 1999-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5079110A (en) | Alkaline storage cell | |
| JPH03219558A (en) | Paste type cadmium electrode for alkaline storage battery | |
| US4983477A (en) | Cadmium non-sintered negative electrode for an alkaline storage cell and its manufacturing method | |
| JPS6196666A (en) | Alkaline zinc storage battery | |
| JP2792882B2 (en) | Non-sintered cadmium negative electrode for alkaline storage battery and method for producing the same | |
| JP3268938B2 (en) | Nickel-hydrogen storage battery | |
| JP2003151618A (en) | Lead-acid battery and additive for lead-acid battery | |
| JPH0560220B2 (en) | ||
| JP2614486B2 (en) | Alkaline zinc storage battery | |
| JPH0542114B2 (en) | ||
| JPS6316554A (en) | Non-sintered type cadmium anode for alkaline storage battery | |
| JP2000106184A (en) | Nickel hydroxide electrode for alkaline storage battery, and the alkaline storage battery using this electrode | |
| JP2931316B2 (en) | Manufacturing method of alkaline zinc storage battery | |
| JPS58163160A (en) | Alkaline zinc storage battery | |
| JPS6199277A (en) | Metal-hydrogen alkaline storage battery | |
| JPH08162111A (en) | Active material for nickel electrode and method for producing the same | |
| JPH01232663A (en) | Non-sintered cadmium negative electrode for alkaline storage battery | |
| JPS60225372A (en) | Alkaline zinc storage battery | |
| JPH079807B2 (en) | Zinc electrode for alkaline storage battery | |
| JPH04112457A (en) | Ni-cd storage battery | |
| JPH01239763A (en) | Zinc electrode for alkaline storage battery | |
| JPS6014758A (en) | Alkali zinc battery | |
| JPH01107464A (en) | Cylindrical alkaline-zinc storage battery | |
| JPS58137963A (en) | Alkaline zinc storage battery | |
| JPH04267051A (en) | Manufacture of paste type cadmium negative electrode for alkaline storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080709 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080709 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090709 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |