GB2314964A - Pole plate having non-active portion - Google Patents
Pole plate having non-active portion Download PDFInfo
- Publication number
- GB2314964A GB2314964A GB9713794A GB9713794A GB2314964A GB 2314964 A GB2314964 A GB 2314964A GB 9713794 A GB9713794 A GB 9713794A GB 9713794 A GB9713794 A GB 9713794A GB 2314964 A GB2314964 A GB 2314964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole plate
- active portion
- edges
- plate
- active material
- 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
Classifications
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
-
- 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
- H01M4/14—Electrodes for lead-acid accumulators
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
- H01M4/74—Meshes or woven material; Expanded metal
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
- H01M4/74—Meshes or woven material; Expanded metal
- H01M4/742—Meshes or woven material; Expanded metal perforated material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
- H01M10/28—Construction or manufacture
- H01M10/286—Cells or batteries with wound or folded electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/10—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with wound or folded electrodes
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
A pole plate 10 has two longitudinal side edges and two lateral end edges comprising an active portion 4 on which a plurality of charging holes 6 are formed to allow the charging of active material, and a non-active portion 12 formed at a predetermined width on the longitudinal side edges and the two lateral end edges. The non-active portion is void of charging holes and active material.
Description
2314964 POLE PLATE HAVING NON-ACTIVE PORTION
BACKGROUND,
The present invention relates to a pole plate having a non-active portion, and more particularly, to a pole plate having formed a non-active portion around outer edges such that short-circuiting is prevented.
Secondary batteries are batteries that can be recharged. There are two main types of secondary batteries: nickel-cadmium and nickel -hydrogen. In the nickel-cadmium battery, electrodes are formed by layering a plurality of plates in the order of a positive plate, an insulating plate, a negative plate, and an additional insulating plate. The insulating plates prevent short-circuiting between the positive and negative plates. The above layered combination is then installed in a container. Next, electrolytes (i.e., calcium hydroxide KOH, sodium hydroxide NaOH, or nickel hydroxide NiOH) are then placed in the container.
The negative plate is formed by rolling after charging the active material, or electrolytes.
Referring to Fig. 3, there is shown a negative plate 2 provided with an active portion 4 formed over an entire area of the negative plate 2. The active portion 4 has formed a plurality of charging holes 6.
Also, as shown in Fig. 4, a negative plate 8 of another prior art example has formed a plurality of charging holes 6 on an active portion 4 of the negative plate 2. Non-active portions 9 are formed along longitudinal outside edges of the negative plate 8, the non-active portions 9 being formed at a predetermined width and by removing the active material using ultrasonic waves or water.
In the above prior art negative plates, semicircular grooves are formed along edges (only lateral edges in Fig. 4). As a result, when rolling the negative plate with the positive plate and the interposed insulating plates to form electrodes, edges of the semicircular grooves can damage the insulating plates causing the positive and negative plates to short-circuit.
Also, as it is easy for active material charged on end portions of the edges to be removed from the sharp edges formed by the semicircular grooves, the removed active material can contaminate the electrolytes, reducing the capacity of the battery.
SUMARY
The present invention has been made in an effort to solve the above problems.
It is an object of the present invention to provide a pole plate having a non-active portion which prevents damage to insulating plates and removal of active material to prevent a short-circuiting of positive and negative plates and a reduction in battery capacity.
To achieve the above object, the present invention provides a pole plate having two longitudinal side 2 edges and two lateral end edges comprising an active portion on which a plurality of charging holes are formed to allow the charging of active material, and a non-active portion formed at a predetermined width on the longitudinal side edges and the two lateral end edges, the non-active portion being void of charging holes and active material.
According to a feature of the present invention, the non-active portion is formed in a straight line.
According to another feature of the present invention, corners, where the longitudinal side edges meet the lateral end edges, are rounded.
is BRIEF DESCRIPTION OF TEE DRAWINGS
Further objects and other advantages of the present invention will become apparent from the following description in conjunction with the attached drawings, in which:
Fig. 1 is a f ront view of a pole plate having a non-active portion according to a preferred embodiment of the present invention; Fig. 2 is a perspective view illustrating a process of forming electrodes using the pole plate shown in Fig.
1; Fig. 3 is a front view illustrating the prior art pole plate; and Fig. 4 is a front view illustrating another prior 3 art pole plate.
DESCRIPTION
Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Referring first to Fig. 1, there is shown a front view of a pole plate 10 having a non-active portion according to a preferred embodiment of the present invention. The pole plate 10 includes an active portion 4 having formed a plurality of charging holes 6, which allow the charging of active material, and a non-active portion 12 formed at a predetermined width on two longitudinal side edges and two lateral end edges of the pole plate 10, the non-active portion 12 being formed by removing the active material on the pole plate 10.
In the above, it is preferable to form the nonactive portion 12 in a straight line, and to round off corners of the non-active portion 12 where the longitudinal side edges meet the lateral end edges.
The manufacturing process of the pole plate 10 of the present invention structured as in the above will be explained hereinafter.
First, a plurality of charging holes 6 are formed in lines at predetermined distances on the active portion 4. Next, the active material on the pole plate 10 is charged. After this step, the non- active portion 12 is formed at a predetermined width along the two 4 longitudinal sides edges and the two lateral end edges of the pole plate 10 by using ultrasonic waves or water to remove the active material. it is preferable to use this pole plate 10 as the negative plate.
As shown Fig. 2, a tab member 15 is mounted to a positive plate 14, and a layer combination is formed in a order of positive plate 14, insulating plate 16, negative plate 10, and insulating plate 16. This layer combination, forming electrodes, is then rolled.
During the above rolling process, because the corners of the pole plate 10 are rounded and the longitudinal side edges and the lateral end edges of the same are formed in a straight line, the pole plate 10 of the present invention does not damage the insulating plates 16 as in the prior art. This acts to prevent short-circuiting of the positive and negative plates.
Further, the forming of the non-active portion acts to prevent the removal of the active material on edge portions such that the life of the pole plate is increased, and a reduction in the capacity of the pole plate is prevented.
Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that many variations and/or modifications of the basic inventive concepts herein taught which may appear to those skilled in the present art will still fall within the spirit and scope of the 1 present invention, as defined in the appended claims.
6
Claims (4)
1. A pole plate having two longitudinal side edges and two lateral end edges, comprising:
an active portion on which a plurality of charging holes are formed to allow the charging of active material; and a non-active portion formed at a predetermined width on the longitudinal side edges and the two lateral end edges, the non-active portion being void of charging holes and active material.
2. A pole plate of claim 1, wherein the nonactive portion is formed in a straight line.
3. A pole plate of claim 1, wherein corners, where the longitudinal side edges meet the lateral end edges, are rounded.
4. A pole plate substantially as hereinbefore described with reference to Figures 1 and 2 of the accompanying drawings.
7
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960019615U KR200150028Y1 (en) | 1996-07-02 | 1996-07-02 | Electrode plate |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9713794D0 GB9713794D0 (en) | 1997-09-03 |
| GB2314964A true GB2314964A (en) | 1998-01-14 |
| GB2314964B GB2314964B (en) | 1999-01-27 |
Family
ID=19460660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9713794A Expired - Fee Related GB2314964B (en) | 1996-07-02 | 1997-06-30 | Pole plate having non-active portion |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPH1074522A (en) |
| KR (1) | KR200150028Y1 (en) |
| CN (1) | CN1170967A (en) |
| DE (1) | DE19727662A1 (en) |
| FR (1) | FR2752645A1 (en) |
| GB (1) | GB2314964B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6300002B1 (en) * | 1999-05-13 | 2001-10-09 | Moltech Power Systems, Inc. | Notched electrode and method of making same |
| JP2001052711A (en) * | 1999-08-05 | 2001-02-23 | Honda Motor Co Ltd | Electrode plate for storage battery |
| JP4971537B2 (en) * | 2000-04-14 | 2012-07-11 | パナソニック株式会社 | Battery plate group and manufacturing method thereof |
| JP2005235494A (en) * | 2004-02-18 | 2005-09-02 | Sanyo Electric Co Ltd | Positive pole for nickel-hydrogen storage battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395685A (en) * | 1972-05-10 | 1975-05-29 | Nl Industries Inc | Battery electrodes for lead-acid batteries |
| GB1583783A (en) * | 1976-12-15 | 1981-02-04 | Exxon Research Engineering Co | Method of preparing lighium-aluminum alloy electrodes |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0353456A (en) * | 1989-07-18 | 1991-03-07 | Sanyo Electric Co Ltd | Conductive core of plate for cylindrical battery |
| DE69014185T2 (en) * | 1989-09-18 | 1995-03-30 | Toshiba Battery | Secondary nickel metal hydride cell. |
| JPH05234598A (en) * | 1992-02-21 | 1993-09-10 | Matsushita Electric Ind Co Ltd | Spiral electrode plate group for storage battery |
| US5527638A (en) * | 1993-06-30 | 1996-06-18 | Matsushita Electric Industrial Co., Ltd. | Hydrogen storage alloy electrode and sealed-type nickel-metal hydride storage battery using the same |
| KR960043320A (en) * | 1995-05-31 | 1996-12-23 | 윤종용 | Method for manufacturing current collector for secondary battery and pole plate |
-
1996
- 1996-07-02 KR KR2019960019615U patent/KR200150028Y1/en not_active IP Right Cessation
-
1997
- 1997-06-27 CN CN97113974A patent/CN1170967A/en active Pending
- 1997-06-30 DE DE19727662A patent/DE19727662A1/en not_active Withdrawn
- 1997-06-30 FR FR9708229A patent/FR2752645A1/en active Pending
- 1997-06-30 GB GB9713794A patent/GB2314964B/en not_active Expired - Fee Related
- 1997-07-02 JP JP9176252A patent/JPH1074522A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395685A (en) * | 1972-05-10 | 1975-05-29 | Nl Industries Inc | Battery electrodes for lead-acid batteries |
| GB1583783A (en) * | 1976-12-15 | 1981-02-04 | Exxon Research Engineering Co | Method of preparing lighium-aluminum alloy electrodes |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9713794D0 (en) | 1997-09-03 |
| JPH1074522A (en) | 1998-03-17 |
| FR2752645A1 (en) | 1998-02-27 |
| GB2314964B (en) | 1999-01-27 |
| CN1170967A (en) | 1998-01-21 |
| DE19727662A1 (en) | 1998-01-08 |
| KR980009762U (en) | 1998-04-30 |
| KR200150028Y1 (en) | 1999-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20010630 |