JPH02174065A - Zinc powder for alkaline battery - Google Patents
Zinc powder for alkaline batteryInfo
- Publication number
- JPH02174065A JPH02174065A JP31178388A JP31178388A JPH02174065A JP H02174065 A JPH02174065 A JP H02174065A JP 31178388 A JP31178388 A JP 31178388A JP 31178388 A JP31178388 A JP 31178388A JP H02174065 A JPH02174065 A JP H02174065A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- bismuth
- lead
- mercury
- 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.)
- Pending
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 46
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 34
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 30
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000011701 zinc Substances 0.000 claims abstract description 19
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 10
- 238000005267 amalgamation Methods 0.000 abstract description 7
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 229910052793 cadmium Inorganic materials 0.000 description 6
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 6
- 229910052716 thallium Inorganic materials 0.000 description 6
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- 229910052738 indium Inorganic materials 0.000 description 5
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 229910052718 tin Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 229910000497 Amalgam Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000701 toxic element Toxicity 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Powder Metallurgy (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は水銀、ビスマスおよび鉛を含有し亜鉛をベース
とするアルカリ電池用の粉末に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field] The present invention relates to a zinc-based alkaline battery powder containing mercury, bismuth and lead.
アルカリ電池用の粉末中に水銀、ビスマスおよび鉛が存
在すると、電池の電解質における前記粉末の腐食に対す
る耐性が高まる。The presence of mercury, bismuth and lead in powders for alkaline batteries increases the resistance of the powders to corrosion in the battery electrolyte.
上記のような亜鉛をベースとする粉末は、特開昭５９−
９４３７１号公報に記載されている。The above-mentioned zinc-based powder is
It is described in Publication No. 94371.
この公知粉末は、鉛０．０５重量％、ビスマス０．０１
重量％、カドミウム０．０１重量％、錫０．０１重量％
。This known powder contains 0.05% by weight of lead and 0.01% by weight of bismuth.
Weight%, Cadmium 0.01% by weight, Tin 0.01% by weight
.
タリウム０．０１重量％、インジウム０．０２重量％。Thallium 0.01% by weight, indium 0.02% by weight.
水銀０．９重量％および残部が亜鉛からなる。It consists of 0.9% by weight of mercury and the balance zinc.
しかしながら、この公知粉末は、両方とも非常に有毒な
元素であるカドミウムおよびタリウムを含有するという
欠点を有する。However, this known powder has the disadvantage of containing cadmium and thallium, both of which are highly toxic elements.
本発明の目的は、このような公知粉末の欠点を避け、そ
してアルカリ媒体における腐食に対して優れた耐性を有
する粉末を提供することである。The aim of the present invention is to avoid these drawbacks of known powders and to provide a powder that has excellent resistance to corrosion in alkaline media.
上記の目的を達成するために、本発明のアルカリ電池用
亜鉛粉末は、
水ｍＯ，０５ナイＬ ３重量％、 ヒスマス０．００３
ないし０．２重量％、鉛０．０１ないし０．０８重量％
および残部が亜鉛から実質的になることを特徴とする。In order to achieve the above object, the zinc powder for alkaline batteries of the present invention contains 3% by weight of water mO.
0.2% to 0.2% by weight, 0.01% to 0.08% by weight of lead
and the remainder consisting essentially of zinc.
実際に、さらに証明されるであろうように、そのような
粉末は、公知粉末に比べより少ない腐食阻害元素を含有
するけれども、それにもかかわらず、アルカリ媒体にお
ける腐食に対して優れた耐性を有することが見出され、
腐食に対するその耐性は、例°えば公知粉末と同じ量の
水銀、鉛およびビスマスを含有する場合にこの公知粉末
と同程度に良好であることは、本当に驚くべきことであ
る。Indeed, as will be further demonstrated, although such powders contain fewer corrosion-inhibiting elements than known powders, they nevertheless have excellent resistance to corrosion in alkaline media. It was discovered that
It is truly surprising that its resistance to corrosion is as good as the known powder, for example when it contains the same amounts of mercury, lead and bismuth.
本発明の粉末は、従って、少なくとも水銀を０．０５重
量％、ビスマスを０．００３重景置台よび鉛を０．０１
重量％含有する。これらの含量は十分な腐食耐性を得る
ために必要とされる。水銀、ビスマスおよび鉛の最大含
量は、それぞれ３重量％、０．２重量％および０６０８
重量％であり、それ以上の含量は腐食に対して本質的な
改善を与えない。The powder of the invention therefore contains at least 0.05% by weight of mercury, 0.003% bismuth and 0.01% lead.
Contains % by weight. These contents are required to obtain sufficient corrosion resistance. The maximum content of mercury, bismuth and lead is 3% by weight, 0.2% by weight and 0608 respectively
% by weight, higher contents do not provide substantial improvement against corrosion.
前に使用した「実質的になる」という表現は、全てが少
なくとも９９．９％の純度である水銀、ビスマスおよび
鉛、およびＳＨＧ （特級（Ｓｐｅｃｉａｌ旧ｇｈ Ｇ
ｒａｄｅ） ）規格の亜鉛、並びにこれらの金属に不可
避に存在する不′４＠物だけが粉末の成分であることを
意味する。As used above, the term "substantially" refers to mercury, bismuth and lead, all of which are at least 99.9% pure, and SHG (special grade).
This means that the only constituents of the powder are the standard zinc and the impurities that are unavoidably present in these metals.
本発明の粉末は有利には、水銀を０．１ないし３重量％
、鉛を０．０３ないし０．０６重量％およびビスマスを
０．００３ないし０．０４９重置％含有し、そして最も
好ましい水銀含量は１．３ないし１．７重量％に及び、
そしてビスマス含量は０．０２５ないし０．０４５重量
％に及・１で。The powder of the invention advantageously contains 0.1 to 3% by weight of mercury.
, containing 0.03 to 0.06 weight percent lead and 0.003 to 0.049 weight percent bismuth, and the most preferred mercury content ranges from 1.3 to 1.7 weight percent;
And the bismuth content ranges from 0.025 to 0.045% by weight.
本発明の粉末は、以下の方法の一つに従って製造され得
る：
・全ての微量成分（Ｈｇ、Ｂｉ、Ｐｂ）を含有する溶融
亜鉛浴の噴霧粉末化：
・微量成分の一部（例えば；鉛の全量および水銀の一部
）を既に含有する溶融亜鉛浴の噴霧粉末化、そしてアマ
ルガム化（例えば； Ｈｇ−Ｂ１アマルガムを用いて）
またはセメンチージョンに続（アマルガム化（例えば；
噴霧粉末上でのビスマスのセメンチージョンおよびそれ
によって得られた粉末の水銀とのアマルガム化）のいず
れかによる噴霧粉末への残りの微量成分（例えば；ビス
マスの全量および残りの水銀）の導入；
・純粋な亜鉛の溶融浴の噴霧粉末化、そしてアマルガム
化またはセメンて−ジョンに続くアマルガム化のいずれ
かによる噴霧粉末への全ての微量成分の導入。The powders of the invention may be produced according to one of the following methods: Spray powdering of a molten zinc bath containing all the minor components (Hg, Bi, Pb): Some of the minor components (e.g. lead atomization of a molten zinc bath already containing (all amounts of mercury and part of mercury) and amalgamation (e.g.; with Hg-B1 amalgam)
or following cementation (amalgamation, e.g.;
introduction of remaining minor components (e.g.; total amount of bismuth and remaining mercury) into the spray powder, either by cementation of bismuth on the spray powder and amalgamation of the resulting powder with mercury; - Spray powdering of the pure zinc molten bath and introduction of all minor constituents into the spray powder either by amalgamation or cementation followed by amalgamation.
１里班上
本実施例は、本発明に係る水銀、ビスマスおよび鉛を含
有し亜鉛をベースとするアルカリ電池用粉末に関するも
のである。This example relates to a zinc-based alkaline battery powder containing mercury, bismuth and lead according to the present invention.
鉛０．０５重量％およびビスマス０．０４５重量％含有
する溶融亜鉛浴を調製する。この溶融浴を撹拌により４
５０’Ｃで均質にする。溶融合金を、圧縮空気の噴流中
に流入せしめ、それにより均質溶融浴の組成と同一の均
質組成（Ｚｎ−０，０５Ｐｂ−０゜４５Ｂｉ）を実質的
に有する粒子である合金粉末を製造する。A molten zinc bath is prepared containing 0.05% by weight lead and 0.045% by weight bismuth. This molten bath was stirred to
Homogenize at 50'C. The molten alloy is passed into a jet of compressed air, thereby producing an alloy powder that is particles having substantially the same homogeneous composition as that of the homogeneous molten bath (Zn-0,05Pb-0°45Bi).
その合金粉末から５００μｔを越える両分およびできる
限り７５μｍより小さい両分を分離するために、この合
金粉末を篩にかける。このようにして、７５ないし５０
０ μｍの粒子サイズの合金粉末が得られる。The alloy powder is sieved in order to separate from it both the fraction exceeding 500 .mu.t and the fraction smaller than 75 .mu.m as far as possible. In this way, 75 to 50
An alloy powder with a particle size of 0 μm is obtained.
篩にかけた合金粉末を水ｉｉｉ、ｓ重量％（亜鉛に対し
て）と室温で混合する。このようにして、亜鉛に対して
鉛０．０５重量％、ビスマス０．０４５重量％および水
銀１．５重量％を含有する粉末を得る。The sieved alloy powder is mixed at room temperature with iii,s wt% water (relative to zinc). In this way, a powder is obtained which contains 0.05% by weight of lead, 0.045% by weight of bismuth and 1.5% by weight of mercury relative to zinc.
この粉末のアルカリ媒体中での腐食に対する耐性を試験
する。この最終用途のために、ＫＯＨ３５重量％、Ｚｎ
０２重量％および蒸留水６３重量％からなる電解質を製
造する。前記粉末７０ｇをこの電解質１６０１１ｉ中に
入れ、７１°Ｃに保ち、そして該電解質から放出される
水素の量を１４日間測定する。ガス化率は、粉末１ｇお
よび１日当たり３０．１μｌであることがわかった。The resistance of this powder to corrosion in alkaline media is tested. For this end use, 35 wt% KOH, Zn
An electrolyte is prepared consisting of 2% by weight of 0.02% by weight and 63% by weight of distilled water. 70 g of the powder is placed in this electrolyte 16011i, kept at 71° C., and the amount of hydrogen released from the electrolyte is measured for 14 days. The gasification rate was found to be 30.1 μl per gram of powder and per day.
災立桝１
本実施例もまた、本発明に係る粉末に関するものである
。Example 1 This example also relates to the powder according to the present invention.
実施例１と同様に操作するが、しかし、鉛０゜０５重量
％およびビスマス０．０４５重量％含有する溶融浴を調
製する代わりに、鉛０．０５重量％のみを含有する溶融
浴を調製し、篩にかけた合金粉末を１，５重量％の水銀
とアマルガム化する代わりに、ビスマス２．９重量％お
よび水１１９７．１重量％含有するアマルガム１．５５
重量％とアマルガム化する。このようにして実施例１の
粉末と同様の組成および同様の粒子サイズを有する粉末
を得る。Proceed as in Example 1, but instead of preparing a molten bath containing 0.05% by weight of lead and 0.045% by weight of bismuth, prepare a molten bath containing only 0.05% by weight of lead. , instead of amalgamating the sieved alloy powder with 1.5% by weight of mercury, amalgam 1.55 containing 2.9% by weight of bismuth and 1197.1% by weight of water
wt% and amalgamate. In this way a powder having a similar composition and a similar particle size to the powder of Example 1 is obtained.
３２．３μＩｌ／ｇ／日のガス化率が得られた。A gasification rate of 32.3 μIl/g/day was obtained.
尖立■主
本実施例は、上記した従来技術に係るカドミウム、タリ
ウム、錫およびインジウム並びに水銀、ビスマスおよび
鉛を含有し亜鉛をベースとするアルカリ電池用粉末に関
するものである。This example relates to a zinc-based alkaline battery powder containing cadmium, thallium, tin, and indium, as well as mercury, bismuth, and lead, according to the prior art described above.
実施例１と同様に操作するが、しかし、鉛０゜０５重量
％およびビスマス０．０４５重量％含有する溶融浴を調
製する代わりに、鉛０．０５置台％、ビスマス０．０１
重量％、カドミウム０．０１重量％、錫０．０１重量％
、タリウム０．０１重量％およびインジウム０．０２重
量％を含有する溶融浴を調製し、篩にかけた合金粉末を
１．５重量％の水銀とアマルガム化する代わりに、０．
９重量％の水銀とアマルガム化する。最終的に、亜鉛に
対して、鉛０゜０５重量％、ビスマス０．０１重量％、
カドミウム０゜０１重量％１錫０．０１重量％、タリウ
ム０．０１重量％。Proceed as in Example 1, but instead of preparing a molten bath containing 0.05% lead and 0.045% bismuth by weight, 0.05% lead and 0.01% bismuth.
Weight%, Cadmium 0.01% by weight, Tin 0.01% by weight
, 0.01% by weight of thallium and 0.02% by weight of indium and instead of amalgamating the sieved alloy powder with 1.5% by weight of mercury.
Amalgamate with 9% by weight of mercury. Finally, 0.05% by weight of lead, 0.01% by weight of bismuth,
Cadmium 0°01% by weight 1 Tin 0.01% by weight, thallium 0.01% by weight.
インジウム０．０２重量％および水銀０．９重量％を含
有する粉末を得る。A powder containing 0.02% by weight of indium and 0.9% by weight of mercury is obtained.
４８．０μｌ／ｇ／日のガス化率が得られた。A gasification rate of 48.0 μl/g/day was obtained.
１去１１（ 本実施例は再び本発明に係る粉末に関するものである。1 left 11 ( This example again concerns the powder according to the invention.
実施例３と同様に操作するが、しかし、鉛０６０５重量
％、ビスマス０．０１重量％、カドミウム０゜０１重量
％、錫０．０１重量％、タリウム０．０１重量％および
インジウム０．０２重量％を含有する溶融浴を調製する
代わりに、鉛０．０５重量％およびビスマス０．０１重
量％のみを含有する溶融浴を調製する。このようにして
、亜鉛に対して、鉛０．０５重量％、ビスマス０．０１
重量％および水銀０．９重量％を含有する粉末を得る。Proceed as in Example 3, but with 0.605% by weight of lead, 0.01% by weight of bismuth, 0.01% by weight of cadmium, 0.01% by weight of tin, 0.01% by weight of thallium and 0.02% by weight of indium. %, instead of preparing a molten bath containing only 0.05% by weight lead and 0.01% by weight bismuth. In this way, with respect to zinc, 0.05% by weight of lead and 0.01% by weight of bismuth
A powder is obtained containing % by weight and 0.9% by weight of mercury.
４８．６μ２／ｇ／日のガス化率が得られた。これは、
実施例３で得られたものにまさに匹敵する。A gasification rate of 48.6 μ2/g/day was obtained. this is,
Just comparable to that obtained in Example 3.
実去Ｉ生ｉ 本実施例もまた本発明に係る粉末に関するものである。actual past life i This example also relates to the powder according to the present invention.
実施例４と同様に操作するが、しかし、鉛０゜０５重量
％およびビスマス０．０１重量％を含有する溶融浴を調
製する代わりに、鉛０．０５重盪％およびビスマス０．
０４５重量％を含有する溶融浴を調製する。このように
して、亜鉛に対して、鉛０゜０５重量％、ビスマス０．
０４５重量％および水！！０゜９重量％を含有する粉末
を得る。Proceed as in Example 4, but instead of preparing a molten bath containing 0.05% by weight of lead and 0.01% by weight of bismuth, 0.05% by weight of lead and 0.05% by weight of bismuth.
A melt bath containing 0.045% by weight is prepared. In this way, 0.05% by weight of lead and 0.05% by weight of bismuth were added to the zinc.
045% by weight and water! ! A powder containing 0.9% by weight is obtained.
４１．０μｌ／ｇ／日のガス化率が得られた。A gasification rate of 41.0 μl/g/day was obtained.
Claims (6)
３ないし０．２重量％、鉛０．０１ないし０．０８重量
％および残部が亜鉛から実質的になることを特徴とする
水銀、ビスマスおよび鉛を含有し亜鉛をベースとするア
ルカリ電池用粉末。(1) Mercury 0.05 to 3% by weight, bismuth 0.00
A zinc-based alkaline battery powder containing mercury, bismuth and lead, characterized in that it consists essentially of 3 to 0.2% by weight of lead, 0.01 to 0.08% of lead and the balance zinc.
とする請求項１記載の粉末。(2) The powder according to claim 1, which contains 0.1 to 3% by weight of mercury.
特徴とする請求項２記載の粉末。(3) The powder according to claim 2, characterized in that it contains 1.3 to 1.7% by weight of mercury.
を特徴とする請求項１、２または３記載の粉末。(4) The powder according to claim 1, 2 or 3, characterized in that it contains 0.03 to 0.06% by weight of lead.
有することを特徴とする請求項１ないし４のいずれか１
項に記載の粉末。(5) Any one of claims 1 to 4, characterized in that it contains 0.003 to 0.049% by weight of bismuth.
Powder as described in Section.
有することを特徴とする請求項５記載の粉末。(6) The powder according to claim 5, containing 0.025 to 0.045% by weight of bismuth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31178388A JPH02174065A (en) | 1988-12-09 | 1988-12-09 | Zinc powder for alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31178388A JPH02174065A (en) | 1988-12-09 | 1988-12-09 | Zinc powder for alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02174065A true JPH02174065A (en) | 1990-07-05 |
Family
ID=18021420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31178388A Pending JPH02174065A (en) | 1988-12-09 | 1988-12-09 | Zinc powder for alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02174065A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61290655A (en) * | 1985-06-19 | 1986-12-20 | Mitsui Mining & Smelting Co Ltd | Zinc alkaline battery |
-
1988
- 1988-12-09 JP JP31178388A patent/JPH02174065A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61290655A (en) * | 1985-06-19 | 1986-12-20 | Mitsui Mining & Smelting Co Ltd | Zinc alkaline battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5240793A (en) | Alkaline batteries containing a zinc powder with indium and bismuth | |
| US5082622A (en) | Zinc alloy powder for alkaline batteries | |
| US4450136A (en) | Calcium/aluminum alloys and process for their preparation | |
| US4548642A (en) | Process for preparing zinc powder for alkaline batteries (V) | |
| US5209995A (en) | Zinc alkaline cells | |
| JP2926417B2 (en) | Alkaline battery | |
| US5139900A (en) | Zinc alkaline cells | |
| US4920020A (en) | Zinc powder for alkaline batteries | |
| CA2153330C (en) | Zinc powder for alkaline batteries | |
| US5425798A (en) | Zinc alloy powder for alkaline cell and method to produce the same | |
| WO1994019502A9 (en) | Zinc powder for alkaline batteries | |
| CA1053034A (en) | Dental powder composite and amalgam | |
| JP3763100B2 (en) | Zinc powder for alkaline batteries | |
| JPH02174065A (en) | Zinc powder for alkaline battery | |
| US4164419A (en) | Powdered alloy for dental amalgam | |
| US4453977A (en) | Low silver containing dental amalgam alloys | |
| JPS6164076A (en) | Electrochemical battery | |
| JPH05182660A (en) | Nonlead nonamalgamated zinc alloy powder and manufacture thereof for alkaline battery | |
| JPS60238401A (en) | Zinc powder for alkali cell and manufacture | |
| JPH05299082A (en) | Zinc alloy powder for alkaline battery and manufacture thereof | |
| JPS60243969A (en) | Manufacture of anode active material for battery | |
| CA2077796A1 (en) | Low-lead zinc alloy powders for zero-mercury alkaline batteries | |
| JPS6164073A (en) | Zinc alloy for negative electrode of an alkaline battery | |
| SU1514817A1 (en) | Alloying composition for producing copper-based sintered alloys | |
| JPS6414867A (en) | Manufacture of amalgamated zinc alloy powder for alkaline dry battery |