JP2008541390A - アルカリ電池向けの孔開き粒子を有する合金化亜鉛粉末 - Google Patents
アルカリ電池向けの孔開き粒子を有する合金化亜鉛粉末 Download PDFInfo
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000002245 particle Substances 0.000 title claims abstract description 38
- 239000011701 zinc Substances 0.000 claims abstract description 16
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 12
- 238000010334 sieve classification Methods 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 9
- 229910052797 bismuth Inorganic materials 0.000 claims description 8
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 8
- 229910052738 indium Inorganic materials 0.000 claims description 8
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 238000005275 alloying Methods 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 21
- 238000009690 centrifugal atomisation Methods 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000002309 gasification Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- -1 hydroxide ions Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910003174 MnOOH Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
-
- 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
- H01M4/06—Electrodes for primary cells
- H01M4/08—Processes of manufacture
- H01M4/12—Processes of manufacture of consumable metal or alloy electrodes
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- 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
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- 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
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- H01M4/24—Electrodes for alkaline accumulators
- H01M4/26—Processes of manufacture
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- H01—ELECTRIC ELEMENTS
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/42—Alloys based on zinc
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- B22F9/02—Making metallic powder or suspensions thereof using physical processes
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- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/086—Cooling after atomisation
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Abstract
【解決手段】本発明はアルカリ電池向けの合金化亜鉛粉末、並びに該粉末の製造方法に関する。該粉末は、少なくとも一つの孔が穿設された粒子の存在によって特徴付けられる。これは、高いドレイン放電容量と同時に、粉末の加工能力、保管寿命及び電池のガス化挙動を維持するという利点を示す。本発明の粉末は、冷却された、酸素欠乏雰囲気中の遠心噴霧によって製造可能である。
【選択図】図6
Description
Zn+2(OH)- ―――→ Zn(OH)2+2e- (1)
しかしながら、反応媒体がOH-に枯渇すると、不可逆反応が生じ、亜鉛粒子の表面上
へのZnOの沈殿につながり、それらの表面が不動態化する。最終結果は、上記電気化学反応(1)に関して金属亜鉛の一部は使用不可能となり、そのため、有効電池容量がその理論値の一部に制限される。この不動態化現象は主に高い放電率の際、すなわち、亜鉛粒子が高流量の亜鉛イオンを放出すると同時に、限られた量の水酸化物イオンのみが反応サイトで有効であるときに起こる。
しくは少なくとも31%、さらに少なくとも36%である。上述の“少なくとも一つの孔が穿設された粒子”は、本書の残りの部分において、“孔開き粒子”として言及される。
MnO2+H2O+e- → MnOOH+OH-
先に説明したとおり、これら水酸化物イオンは陰極で亜鉛粒子の表面の不動態化を避けるために亜鉛にとって必要とされる。孔開き粒子が陰極から陽極への水酸化物イオンの拡散を改善し、アルカリ電池の所謂化学的均一性を増強させると考えられている。この重要な特性は、電池が、高電流放電バーストの間、ほんの短時間で停止及び均一化できるという、急速な間欠放電試験によって評価される。
合金化亜鉛粉末を遠心噴霧によって製造した:液体亜鉛合金を480℃で、酸素欠乏保護雰囲気中、13000rpmで回転する直径170mmのディスク上に注いだ。
実施例1の噴霧化亜鉛粉末を用いて、図5に示すように、陽極、陰極及びセパレーターを含む電気化学セルを作成した。缶(10)は、基本的にMnO2、C及びKOHで出来
ている、環状の陽極混合物(11)を含む。セパレーターペーパー(12)は陽極と陰極混合物(13)の間のショートカットを防ぐ。電流コレクタ(14)は陰極混合物から電子を収集する。このようなセルは従来のLR−6電池に対応する。
−1A 連続ドレナージテスト(1.0Vでカットオフ);並びに
−1A 間欠ドレナージテスト(放電10秒に続いて停止50秒、0.9Vでカットオフ
)
11 ・・・ 陽極混合物
12 ・・・ セパレーターペーパー
13 ・・・ 陰極混合物
14 ・・・ 電流コレクタ
Claims (9)
- −250乃至425μmのふるい分級画分の10カウント%以上;及び
−150乃至250μmのふるい分級画分の3カウント%以上;及び
−105乃至150μmのふるい分級画分の2カウント%以上
の量のうちの一つ又はそれ以上で、少なくとも一つの孔が穿設された粒子を含む、アルカリ電池向け合金化亜鉛粉末。 - 250乃至425μmのふるい分級画分の20カウント%以上の量で少なくとも一つの孔が穿設された粒子を含む、請求項1記載の合金化亜鉛粉末。
- 250乃至425μmのふるい分級画分の30カウント%以上の量で少なくとも一つの孔が穿設された粒子を含む、請求項2記載の合金化亜鉛粉末。
- 250乃至425μmのふるい分級画分の31カウント%以上の量で、好ましくは少なくとも36カウント%の量で少なくとも一つの孔が穿設された粒子を含む、請求項3記載の合金化亜鉛粉末。
- 合金化元素としてビスマス、インジウム及びアルミニウムの一種以上を含む、請求項1乃至4のうちいずれか一項に記載の合金化亜鉛粉末。
- −0.001乃至0.05質量%のアルミニウム及び0.001乃至2質量%のインジウム;
−0.002乃至0.2質量%のビスマス及び0.001乃至2質量%のインジウム;
−0.002乃至0.2質量%のビスマス、0.001乃至2質量%のインジウム及び0.001乃至0.05質量%のアルミニウム;並びに
−0.002乃至0.2質量%のビスマス;
の何れかを含み、そして所望により、0.5質量%以下の鉛及びカルシウムのいずれか一方又は双方を含み、残りが亜鉛である、請求項5記載の合金化亜鉛粉末。 - 請求項1乃至6のうち何れか一項に記載の合金化亜鉛粉末を含むアルカリ電池。
- アルカリ電池向けの合金化亜鉛粉末の製造方法であって、遠心噴霧チャンバー内の雰囲気が110℃未満の温度に、好ましくは100℃未満の温度に保たれている、亜鉛合金の遠心噴霧工程を含む、製造方法。
- 噴霧が、8容量%未満の、そして好ましくは4容量%より多い酸素含量を有する保護雰囲気中で実施される、請求項10記載のアルカリ電池向けの合金化亜鉛粉末の製造方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05076173 | 2005-05-19 | ||
EP05076173.3 | 2005-05-19 | ||
US68331705P | 2005-05-23 | 2005-05-23 | |
US60/683,317 | 2005-05-23 | ||
PCT/EP2006/003657 WO2006122628A2 (en) | 2005-05-19 | 2006-04-21 | Alloyed zinc powders with pierced particles for alkaline batteries |
Publications (2)
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JP2008541390A true JP2008541390A (ja) | 2008-11-20 |
JP5126607B2 JP5126607B2 (ja) | 2013-01-23 |
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JP2008511578A Active JP5126607B2 (ja) | 2005-05-19 | 2006-04-21 | アルカリ電池向けの孔開き粒子を有する合金化亜鉛粉末 |
Country Status (10)
Country | Link |
---|---|
US (2) | US8142540B2 (ja) |
EP (1) | EP1889312B1 (ja) |
JP (1) | JP5126607B2 (ja) |
CN (1) | CN100555717C (ja) |
AT (1) | ATE415714T1 (ja) |
CA (1) | CA2609001C (ja) |
DE (1) | DE602006003893D1 (ja) |
ES (1) | ES2317537T3 (ja) |
PL (1) | PL1889312T3 (ja) |
WO (1) | WO2006122628A2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US8101006B2 (en) * | 2008-04-22 | 2012-01-24 | The Gillette Company | Centrifugal atomization for producing zinc powder |
CN104988353B (zh) * | 2015-07-07 | 2017-01-11 | 江苏冶建锌业有限公司 | 一种无镉无铅超细锌合金粉末及其制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002047505A (ja) * | 2000-07-28 | 2002-02-15 | Mitsui Mining & Smelting Co Ltd | 電池用亜鉛又は亜鉛合金粉末の製造方法 |
JP2007173097A (ja) * | 2005-12-22 | 2007-07-05 | Fdk Energy Co Ltd | 電池用亜鉛合金粉末およびアルカリ電池 |
Family Cites Families (7)
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US3720737A (en) * | 1971-08-10 | 1973-03-13 | Atomization Syst Inc | Method of centrifugal atomization |
US6022639A (en) | 1996-11-01 | 2000-02-08 | Eveready Battery Company, Inc. | Zinc anode for an electochemical cell |
US6284410B1 (en) | 1997-08-01 | 2001-09-04 | Duracell Inc. | Zinc electrode particle form |
JP4552171B2 (ja) | 1999-02-09 | 2010-09-29 | エヌ ヴェ ユミコア ソシエテ アノニム | アルカリ電池用遠心微粒化された亜鉛合金粉末 |
DE60313334T2 (de) | 2002-08-05 | 2008-01-03 | Noranda Inc., Toronto | Verwendung eines zinkpulvers in elektrochemischen zellen |
US6991875B2 (en) * | 2002-08-28 | 2006-01-31 | The Gillette Company | Alkaline battery including nickel oxyhydroxide cathode and zinc anode |
US7323031B2 (en) * | 2003-01-09 | 2008-01-29 | Grillo-Werke Ag | Zinc powder or zinc alloy powder with inhomogeneous bulk density for alkaline batteries |
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- 2006-04-21 DE DE602006003893T patent/DE602006003893D1/de active Active
- 2006-04-21 EP EP06742629A patent/EP1889312B1/en active Active
- 2006-04-21 US US11/914,501 patent/US8142540B2/en not_active Expired - Fee Related
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- 2006-04-21 ES ES06742629T patent/ES2317537T3/es active Active
- 2006-04-21 CA CA2609001A patent/CA2609001C/en active Active
- 2006-04-21 WO PCT/EP2006/003657 patent/WO2006122628A2/en active Application Filing
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002047505A (ja) * | 2000-07-28 | 2002-02-15 | Mitsui Mining & Smelting Co Ltd | 電池用亜鉛又は亜鉛合金粉末の製造方法 |
JP2007173097A (ja) * | 2005-12-22 | 2007-07-05 | Fdk Energy Co Ltd | 電池用亜鉛合金粉末およびアルカリ電池 |
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CA2609001A1 (en) | 2006-11-23 |
JP5126607B2 (ja) | 2013-01-23 |
US20080199776A1 (en) | 2008-08-21 |
ES2317537T3 (es) | 2009-04-16 |
ATE415714T1 (de) | 2008-12-15 |
CA2609001C (en) | 2013-08-06 |
CN101180754A (zh) | 2008-05-14 |
WO2006122628A2 (en) | 2006-11-23 |
US8545596B2 (en) | 2013-10-01 |
CN100555717C (zh) | 2009-10-28 |
DE602006003893D1 (de) | 2009-01-08 |
EP1889312A2 (en) | 2008-02-20 |
PL1889312T3 (pl) | 2009-05-29 |
WO2006122628A3 (en) | 2007-02-22 |
US8142540B2 (en) | 2012-03-27 |
EP1889312B1 (en) | 2008-11-26 |
US20120096989A1 (en) | 2012-04-26 |
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