Patent EP0710995A2 successfully refreshed from Google Patents.
EP0710995A2
Expired / Lapsed
EP
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Electrode plate for battery and process for producing the same
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1995-11-06
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Granted: —
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Expires: 2015-11-06
Abstract
Abstract An electrode plate for a battery is constructed from a porous metal body having at least one low-porosity part (8) selectively arranged therein. A porous resin core (2) is coated with a paste (3) having a metal component, passed through rolls (4) provided with at least one recess to thereby form at least one low-porosity part and sintered. The resultant electrode plate for battery is not only ensured with respect to strength and capable of improving battery performance but also advantageous in that it is available at lowered cost and free from apprehension of supply of raw materials.
Inventors
- 👤 Keizo c/o Itami Works of Sumimoto Harada
- 👤 Masayuki C/O Itami Works Of Sumimoto Ishii
- 👤 Kenichi c/o Itami Works of Sumimoto Watanabe
- 👤 Shosaku c/o Itami Works of Sumimoto Yamanaka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 14:54
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/80; B; B22; B22F; B22F3/00; B22F3/10; B22F3/11; B22F3/1103; B22F3/1109; B22F3/1121; B22F3/1137; B22F7/00; B22F7/002; C; C25; C25D; C25D7/00; H01M4/66; H01M4/661; H01M4/665; H01M4/667; H01M4/82; H01M50/00; H01M50/50; H01M50/531; B22F2998/00; B22F2998/10; B22F2999/00; H01M10/00; H01M10/24; H01M10/30; H01M10/34; H01M10/345; H01M2300/00; H01M2300/0002; H01M2300/0014; H01M2300/0017; H01M2300/0025; H01M4/36; H01M4/48; H01M4/52; H01M4/668; H01M4/808; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
40 words
An electrode plate for use in a battery, which is an electrode plate retaining an active substance for use as a battery collector and which comprises a porous metal body having at least one low-porosity part (8) selectively arranged therein.
Claim 2
Dependent Claim
32 words
The electrode plate according to claim 1, wherein the low-porosity part has a porosity of 50 to 80% and the part other than the low-porosity part a porosity of 90 to 97%.
Claim 3
Dependent Claim
26 words
The electrode plate according to claim 1 or 2, wherein the low-porosity part is in continuity with the part (7) other than the low-porosity part (8).
Claim 4
Dependent Claim
16 words
The electrode plate according to claim 1,2 or 3, wherein the low-porosity part (8) is pressed.
Claim 5
Dependent Claim
42 words
The electrode plate according to any one of claims 1 to 4, wherein the porous metal body has an Fe/Ni two-layer structure having its skeletal internal part composed of Fe and having a coating layer of Ni formed at its surface part.
Claim 6
Dependent Claim
18 words
The electrode plate according to claim 5, wherein the Fe skeleton has a purity not lower than 98%.
Claim 7
Dependent Claim
21 words
The electrode plate according to claim 5, wherein the coating layer of Ni has an Fe content not higher than 10%.
Claim 8
Dependent Claim
23 words
The electrode plate according to claim 5, wherein the coating layer of Ni has an average thickness ranging from 0.1 to 10 µm.
Claim 9
Dependent Claim
108 words
A process for producing an electrode plate for use in a battery, which comprises impregnating a skeleton of a porous resin core (2) with a paste (3) composed mainly of powder of at least one selected from the group consisting of metals, alloys and metallic compounds, and a binder to thereby obtain a paste-coated skeleton and passing the paste-coated skeleton between rolls (4) provided with at least one recess (6) to thereby selectively form at least one low-porosity part (8), followed by heating at a temperature not lower than that at which the metal component is sintered to thereby obtain a sheet-like porous metal body of three-dimensional network.
Claim 10
Dependent Claim
14 words
The process according to claim 9, wherein the recess is in a groove-like form.
Claim 11
Dependent Claim
14 words
The process according to claim 9, wherein the recess is in a spot-like form.
Claim 12
Dependent Claim
93 words
A process for producing an electrode plate for use in a battery, which comprises impregnating a skeleton of a porous resin core with a paste composed mainly of powdery Fe and a binder to thereby obtain a paste-coated skeleton and passing the paste-coated skeleton between rolls provided with at least one recess to thereby selectively form at least one low-porosity part, followed by heating at a temperature not lower than that at which Fe is sintered to thereby obtain a sheet-like porous body of Fe, this sheet-like porous body being electroplated with Ni.
Claim 13
Dependent Claim
100 words
A process for producing an electrode plate for use in a battery, which comprises impregnating a skeleton of a porous resin core with a paste composed mainly of a binder of an organic resin to thereby obtain a paste-coated skeleton, passing the paste-coated skeleton between rolls provided with at least one recess to thereby selectively vary the amount of coated paste and causing powdery Fe to stick thereto, followed by heating at a temperature not lower than that at which Fe is sintered to thereby obtain a sheet-like porous body of Fe, this sheet-like porous body being electroplated with Ni.
References Cited (Backward Citations)
No citation records indexed.
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