CN1188333A - Nickel fibre felt electrode and process for its manufacture - Google Patents
Nickel fibre felt electrode and process for its manufacture Download PDFInfo
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- CN1188333A CN1188333A CN98100062A CN98100062A CN1188333A CN 1188333 A CN1188333 A CN 1188333A CN 98100062 A CN98100062 A CN 98100062A CN 98100062 A CN98100062 A CN 98100062A CN 1188333 A CN1188333 A CN 1188333A
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- nickel
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- fibre felt
- felt
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- 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
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Abstract
The present invention relates to a nickel fibre felt electrode and its preparation method. It relates to an electrode material for making alkaline secondary cell, in particular for making nickel-hydrogen electrode and electrode material of nickel-cadium cell. It is characterized by that the electrode material is formed from superfine nickel fibre felts which are disorderly lapped together, and every fibre and some fibres are welded together in the form of point contact. Its preparation method is characterized by that it uses airstream method to make nickel fibre net, and adopts high-temp. vaccum sintering technology to make nickel fibre base board. Said invented nickel fibre electrode possesses the advantages of high porosity, large specific area, low internal resistance and long life, etc..
Description
A kind of nickel fibre felt electrode and preparation method thereof relates to a kind of electrode material that alkaline secondary cell is used that is used for, especially for electrode material of Ni-MH battery and nickel-cadmium cell and preparation method thereof.
At present, Ni-MH and Ni-Cd battery many researchs had been carried out both at home and abroad.Ni-MH and Ni-Cd battery have obtained using widely, and form large-scale production, are a kind of electronic products that application prospect is arranged very much.But research and application practice show that nickel itself still exists many deficiencies, particularly foamed nickel electrode material can't satisfy the development need of heavy-duty battery as electrode material at present, and people are studying for this reason and improving.Studies show that the nickel fibre felt electrode material property is better than foamed nickel electrode material greatly, except that being applied to civilian baby battery, also can satisfy the needs of Aero-Space and used for electric vehicle heavy-duty battery.And the method for production nickel electrode substrate commonly used is a powder slurry method at present.Adopt powder slurry method production nickel electrode substrate; exist that production process is discontinuous, production efficiency is low, the high deficiency of cost; and the performance of nickel electrodes of producing is at aspects such as specific area, life-span, charging rate, specific powers; can not satisfy the requirement of heavy-duty battery fully, be difficult to form large-scale production.
Purpose of the present invention is exactly discontinuous, the shortcomings such as efficient is low, cost height of process that exist in producing at present nickel electrode material, provides that a kind of specific area is big, the life-span long, have novel nickel fibre felt electrode of quick charge, specific power advantages of higher and preparation method thereof.
A kind of nickel fibre felt electrode is characterized in that: the nickel fibre felt that its electrode material is made up of the unordered superfine nickel fiber that overlaps, and every fiber and some fibers are and contact shape and be welded on one and surpass, and its major parameter is:
Fibre diameter: 6～60 μ m,
Porosity: 〉=96%,
Specific area: 12～24m
2/ g,
Aperture: 150～300 μ m
Inhomogeneities :≤10%
Tensile strength＞30N/cm
2
The preparation method of a kind of nickel fiber electrode of the present invention, the course of processing that it is characterized in that nickel fiber electrode is: the nickel fibre bundle that will be cut into certain-length, make the nickel fibrous web with the air-flow method through shredding, one-tenth net operation shop, after high temperature sintering is made the nickel fibre felt substrate; The process conditions of shop felt process are:
Licker-in rotating speed: 1945～2700rpm;
Become net pressure: 199～574Pa;
Become net vacuum degree: 125～624Pa;
Feeding vacuum: 498～947Pa;
Output curtain rotating speed: 1.15rpm; Sintering process and technological parameter are:
In vacuum degree is 10
-1～10
-3Under the pa, be raised to 200～500 ℃ with 10 ℃/minute programming rates after; Be incubated 30～120 minutes; Be raised to 1100～1300 ℃ with 10 ℃/minute programming rate again, be incubated 30～120 minutes, with the stove cool to room temperature.
Nickel fibre felt electrode of the present invention owing to adopt superfine nickel fiber to make, adds the selection proper technical conditions, makes that the nickel fiber electrode of preparing has high porosity, bigger serface, internal resistance is low, the life-span is long, quickly-chargeable, specific power advantages of higher.
The invention will be further described below in conjunction with example.
A kind of nickel fibre felt electrode, its electrode material is made up of the unordered superfine nickel fiber felt that surpasses that is overlapped on, and every fiber and some fibers are and contact shape and weld together, and its major parameter is: fibre diameter: 6m μ～60 μ m, porosity: 〉=96%, specific area: 12～24m
2/ g, aperture: 150 μ m～300 μ m, unevenness≤10%, tensile strength＞30N/cm
2
The preparation method of a kind of nickel fibre felt electrode of the present invention is to be cut into the nickel fibre bundle of certain-length, makes nickel fibrous web through shredding, one-tenth net operation shop with the air-flow method under vacuum, after the high-temperature vacuum sintering is made the nickel fibre felt substrate; The process conditions of shop felt process are: licker-in rotating speed: 1945～2700rpm; Become net pressure: 199～574Pa; Become net vacuum degree: 125～624Pa; Feeding vacuum: 498～947Pa; Output curtain rotating speed: 1.15rpm; The technological parameter of sintering process is: in vacuum degree is 10
-1-10
-3Under the Pa, be raised to 200～500 ℃ with 10 ℃/minute programming rates after, be incubated 30～120 minutes; Be raised to 1100～1300 ℃ with 10 ℃/minute programming rate again, be incubated 30～120 minutes, with the stove cool to room temperature.
Add that to adopt the metallic fiber cutting machine to be cut into length up-to-standard nickel fiber man-hour be 15～150mm short fiber bundle, send into special shop felt unit subsequently, through the pre-operation of feeding that fibre bundle is pre-dispersed, through the shredding operation fiber dispersion is become flocculence, adopt air-flow method shop to make the nickel fleece; Make different substance nickel fibre felt bases by the Different Weight requirement then, under vacuum condition,, prepare nickel fibre felt electrode of the present invention through high temperature sintering.
Embodiment 1
With up-to-standard nickel fibre bundle Ф 10 μ m30 kilograms, on the metallic fiber cutting machine of special use, be cut into the short fiber bundle of length 34mm, send into the pre-machine of feeding in the felt unit of shop, fibre bundle after feeding once in advance, send into opener, fiber opening is become evenly unordered, be flocculence, after after lapper became net, can spread and make substance was 150g/m
222.5 kilograms of nickel fleeces, can make the nickel fibre felt base of different size as required.
The process conditions of shop felt process are: licker-in rotating speed: 1945rpm; Become net pressure: 574Pa; Become net vacuum degree: 125Pa; Feeding vacuum: 498Pa; Output curtain rotating speed: 1.15rpm.
The nickel fibre felt base that makes is put into the vacuum sintering furnace sintering, and the technological parameter of sintering process is: in vacuum degree is 10
-1Under the Pa, be raised to 220 ℃ with 10 ℃/minute programming rates after insulation 120 minutes; Be raised to 1300 ℃ with 10 ℃/minute programming rate again, be incubated 30 minutes, with coming out of the stove behind the stove cool to room temperature.
Embodiment 2
With 40 kilograms of up-to-standard Ф 12 μ m nickel fibers, on the metallic fiber cutting machine of special use, be cut into the fibre bundle of length 34mm, send into the pre-machine of feeding in the felt unit of shop, fiber after feeding once in advance, send into the opener in the felt unit of shop, fiber opening is become evenly unordered, be flocculence, after after lapper became net, can spread and make substance was 150g/m
230 kilograms of nickel fleeces, can make the nickel fibre felt base of different size as required.The process conditions of shop felt process are: licker-in rotating speed: 2700rpm; Become net pressure: 199Pa; Become net vacuum degree: 624Pa; Feeding vacuum: 947Pa; Output curtain rotating speed: 1.15rpm.
The nickel fibre felt base that makes is put into the vacuum sintering furnace sintering, and the technological parameter of sintering process is: in vacuum degree is 10
-3Under the Pa, be raised to 500 ℃ with 10 ℃/minute programming rates after; Be incubated 120 minutes; Be raised to 1100 ℃ with 10 ℃/minute programming rate again, be incubated 30～120 minutes, with coming out of the stove behind the stove cool to room temperature.
Embodiment 3
With up-to-standard nickel fibre bundle Ф 6～8 μ m30 kilograms, on the metallic fiber cutting machine of special use, be cut into the short fiber bundle of length 34mm, send into the pre-machine of feeding in the felt unit of shop, fibre bundle after feeding once in advance, send into opener, fiber opening is become evenly unordered, be flocculence, after after lapper became net, can spread and make substance was 150g/m
222.5 kilograms of nickel fleeces, can make the nickel fibre felt base of different size as required.
The process conditions of shop felt process are: licker-in rotating speed: 1945rpm; Become net pressure: 574Pa; Become net vacuum degree: 224Pa; Feeding vacuum: 747Pa; Output curtain rotating speed: 1.15rpm.
The nickel fibre felt base that makes is put into the vacuum sintering furnace sintering, and the technological parameter of sintering process is: in vacuum degree is 10
-4Under the Pa, be raised to 350 ℃ with 10 ℃/minute programming rates after; Be incubated 120 minutes; Be raised to 1200 ℃ with 10 ℃/minute programming rate again, be incubated 90 minutes, with coming out of the stove behind the stove cool to room temperature.
Adopt the described process conditions nickel fibre felt electrode of the foregoing description, the every fiber that successfully makes the unordered superfine nickel fiber that overlaps and some fibers become to put and contact shape and weld together.Select suitable fibre diameter and tensile strength (tensile strength＞30N/cm
2), can obtain nickel fibre felt electrode of the present invention, index reaches following standard after testing.The porosity of fibrofelt: 〉=96%, specific area: 12～24m
2/ g, aperture: 150～300 μ m, inhomogeneities :≤10%.Nickel fibre felt electrode of the present invention have high porosity, bigger serface, internal resistance is low, the life-span is long, quickly-chargeable, specific power advantages of higher.
Embodiment 4
With 40 kilograms of up-to-standard Ф 55～60 μ m nickel fibers, on the metallic fiber cutting machine of special use, be cut into the fibre bundle of length 34mm, send into the pre-machine of feeding in the felt unit of shop, fiber after feeding once in advance, send into the opener in the felt unit of shop, fiber opening is become evenly unordered, be flocculence, after after lapper became net, can spread and make substance was 150g/m
230 kilograms of nickel fleeces, can make the nickel fibre felt base of different size as required.The process conditions of shop felt process are: licker-in rotating speed: 2700rpm; Become net pressure: 199Pa; Become net vacuum degree: 624Pa; Feeding vacuum: 947Pa; Output curtain rotating speed: 1.15rpm.
The nickel fibre felt base that makes is put into the vacuum sintering furnace sintering, and the technological parameter of sintering process is: in vacuum degree is 10
-3Under the Pa, be raised to 500 ℃ with 10 ℃/minute programming rates after; Be incubated 120 minutes; Be raised to 1100 ℃ with 10 ℃/minute programming rate again, be incubated 30～120 minutes, with coming out of the stove behind the stove cool to room temperature.
Claims (2)
1. nickel fibre felt electrode is characterized in that: the nickel fibre felt that its electrode material is made up of the unordered superfine nickel fiber that overlaps, and every fiber and some fibers are and contact shape and weld together, and its major parameter is:
Fibre diameter: 6～60 μ m
Porosity: 〉=96%,
Specific area: 12～24m
2/ g,
Aperture: 150～300 μ m
Inhomogeneities :≤10%
Tensile strength＞30N/cm
2,
2. the preparation method of a nickel fibre felt electrode, the course of processing that it is characterized in that nickel fibre felt electrode is: the nickel fibre bundle that will be cut into certain-length, make the nickel fibrous web with the air-flow method through shredding, one-tenth net operation shop, after high temperature sintering is made the nickel fibre felt substrate;
The process conditions of shop felt process are:
Licker-in rotating speed: 1945～2700rpm;
Become net pressure: 199～574Pa;
Become net vacuum degree: 125～624Pa;
Feeding vacuum: 498～947Pa;
Output curtain rotating speed: 1.15rpm;
Sintering process and technological parameter are:
In vacuum degree is 10
-1～10
-4Under the Pa, be raised to 200～500 ℃ with 10 ℃/minute programming rates after; Be incubated 30～120 minutes; After being raised to 1100～1300 ℃ with 5～15 ℃/minute programming rate again, be incubated 30～120 minutes, with the stove cool to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100062A CN1064781C (en) | 1997-12-11 | 1998-01-22 | Nickel fibre felt electrode and process for its manufacture |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97121889.7 | 1997-12-11 | ||
| CN97121889 | 1997-12-11 | ||
| CN98100062A CN1064781C (en) | 1997-12-11 | 1998-01-22 | Nickel fibre felt electrode and process for its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188333A true CN1188333A (en) | 1998-07-22 |
| CN1064781C CN1064781C (en) | 2001-04-18 |
Family
ID=25744406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98100062A Expired - Fee Related CN1064781C (en) | 1997-12-11 | 1998-01-22 | Nickel fibre felt electrode and process for its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064781C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428539C (en) * | 2004-08-18 | 2008-10-22 | 马志刚 | Vacuum sintering method of negative plate of nickel-hydrogen battery |
| CN100435955C (en) * | 2006-12-07 | 2008-11-26 | 华南理工大学 | Oriented copper fiber sintering felt serving as catalyst carrier and its making process |
| CN102473903A (en) * | 2009-07-14 | 2012-05-23 | 川崎重工业株式会社 | Fiber electrode and fiber cell, and method for producing same, facility for producing fiber electrode and fiber cell |
| CN101140989B (en) * | 2006-09-07 | 2012-06-27 | 住友电气工业株式会社 | Battery electrode substrate, battery electrode, and alkaline secondary battery including the same |
| CN102861912A (en) * | 2012-09-23 | 2013-01-09 | 西北有色金属研究院 | Preparation method of metal fiber sintering felt |
| CN103700798A (en) * | 2013-12-16 | 2014-04-02 | 北京大学 | Fiber chemical energy storage power supply and preparation method thereof |
| CN105057674A (en) * | 2015-08-28 | 2015-11-18 | 西北有色金属研究院 | Preparation method for stainless steel fiber sintered felt |
| CN107790721A (en) * | 2017-10-24 | 2018-03-13 | 西北有色金属研究院 | A kind of preparation technology of 316L stainless steel fibres sintering felt |
| CN112548098A (en) * | 2020-12-03 | 2021-03-26 | 有研工程技术研究院有限公司 | Preparation method of nickel-molybdenum alloy fiber sintered felt |
| CN114976048A (en) * | 2022-05-12 | 2022-08-30 | 上海碳际实业集团有限公司 | Continuous production process of carbon fiber paper special for gas diffusion layer of fuel cell |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08213026A (en) * | 1994-11-28 | 1996-08-20 | Katayama Tokushu Kogyo Kk | Metallic porous body for battery electrode substrate, battery plate, and manufacture thereof |
| CN2236687Y (en) * | 1995-09-22 | 1996-10-02 | 河南省科学院能源研究所 | Binding negative electrode of Ni-H battery |
| CN1041947C (en) * | 1996-06-27 | 1999-02-03 | 郓城县鲁峰贸易有限公司 | Process for preparing collecting type pull net foam nickel (copper) |
-
1998
- 1998-01-22 CN CN98100062A patent/CN1064781C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428539C (en) * | 2004-08-18 | 2008-10-22 | 马志刚 | Vacuum sintering method of negative plate of nickel-hydrogen battery |
| CN101140989B (en) * | 2006-09-07 | 2012-06-27 | 住友电气工业株式会社 | Battery electrode substrate, battery electrode, and alkaline secondary battery including the same |
| CN100435955C (en) * | 2006-12-07 | 2008-11-26 | 华南理工大学 | Oriented copper fiber sintering felt serving as catalyst carrier and its making process |
| CN102473903A (en) * | 2009-07-14 | 2012-05-23 | 川崎重工业株式会社 | Fiber electrode and fiber cell, and method for producing same, facility for producing fiber electrode and fiber cell |
| CN102861912A (en) * | 2012-09-23 | 2013-01-09 | 西北有色金属研究院 | Preparation method of metal fiber sintering felt |
| CN103700798A (en) * | 2013-12-16 | 2014-04-02 | 北京大学 | Fiber chemical energy storage power supply and preparation method thereof |
| CN105057674A (en) * | 2015-08-28 | 2015-11-18 | 西北有色金属研究院 | Preparation method for stainless steel fiber sintered felt |
| CN107790721A (en) * | 2017-10-24 | 2018-03-13 | 西北有色金属研究院 | A kind of preparation technology of 316L stainless steel fibres sintering felt |
| CN112548098A (en) * | 2020-12-03 | 2021-03-26 | 有研工程技术研究院有限公司 | Preparation method of nickel-molybdenum alloy fiber sintered felt |
| CN114976048A (en) * | 2022-05-12 | 2022-08-30 | 上海碳际实业集团有限公司 | Continuous production process of carbon fiber paper special for gas diffusion layer of fuel cell |
| CN114976048B (en) * | 2022-05-12 | 2024-05-28 | 上海碳际实业集团有限公司 | Continuous production process of special carbon fiber paper for fuel cell gas diffusion layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1064781C (en) | 2001-04-18 |
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Granted publication date: 20010418 Termination date: 20100122 |