MXPA97004606A - A pile polish plate and a process for the preparation of the mi - Google Patents
A pile polish plate and a process for the preparation of the miInfo
- Publication number
- MXPA97004606A MXPA97004606A MXPA/A/1997/004606A MX9704606A MXPA97004606A MX PA97004606 A MXPA97004606 A MX PA97004606A MX 9704606 A MX9704606 A MX 9704606A MX PA97004606 A MXPA97004606 A MX PA97004606A
- Authority
- MX
- Mexico
- Prior art keywords
- pole plate
- active materials
- metal
- group
- stack
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 17
- 239000011149 active material Substances 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 20
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 6
- 229910052738 indium Inorganic materials 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 229910052803 cobalt Inorganic materials 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- 239000003792 electrolyte Substances 0.000 description 8
- 210000004027 cells Anatomy 0.000 description 7
- 239000000654 additive Substances 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 239000000969 carrier Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- -1 hydrogen ions Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007773 negative electrode material Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- 229910002640 NiOOH Inorganic materials 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 210000001233 CDP Anatomy 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- ZWIADYZPOWUWEW-XVFCMESISA-N Cytidine diphosphate Chemical compound O=C1N=C(N)C=CN1[C@H]1[C@H](O)[C@H](O)[C@@H](COP(O)(=O)OP(O)(O)=O)O1 ZWIADYZPOWUWEW-XVFCMESISA-N 0.000 description 1
- 229910002335 LaNi5 Inorganic materials 0.000 description 1
- 229910018561 MmNi5 Inorganic materials 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L Nickel(II) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000003190 augmentative Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000011068 load Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
A pole plate produced with the fusion of a metal to join the active materials, in which the melting point of the metal is less than that of the active materials, mix the molten metal with the active materials to produce a precomposition of the plate polo and treat the precomposition of the pole plate with cooling and formation to produce a pole plate that sufficiently avoids the active materials of the splitting and improves the conductivity, which can decrease the internal electrical resistance, increase the duration time and capacity of the batteries. The corrosion and expansion of the pole plate are not caused in the pole plate of the present invention and the process for preparing it can be easily carried out with low production cost.
Description
A BATTERY POLE PLATE AND A PROCESS FOR PREPARING THE SAME DESCRIPTION OF THE INVENTION The present invention relates to pole plates and a process for preparing the same, particularly with pile pole plates using a metal as a binder. the active materials. A melting point of the metal is due to the active materials. Currently, with the widespread dissemination in the use of various types of portable electronic devices, such as a camera, camera recorder, a portable CDP, a radio, a cassette, a pocket computer, a locator and a cell phone, etc., A battery that has higher capacity and greater durability is required for the devices. In general, a battery is a device that converts chemical energy into electrical energy and many types of batteries were developed. Electrochemical cells are generally classified into a non-rechargeable primary battery, a rechargeable secondary battery, a fuel cell that converts the heat of combustion of hydrocarbons into electrical energy and a solar cell that converts the heat energy into electrical energy. Electrochemical batteries and batteries are classified by the composition of the electrolyte and the shape of the batteries.
The composition of the electrolyte and the form are alkaline, solid or non-aqueous batteries and of cylindrical, button or coin types, respectively. In these kinds of batteries, a cylindrical cell (of the gelling roller type) discharges current and is formed of a cathode, an anode, a separator to avoid a short circuit of the cathode and the anode, an electrolyte, a positive terminal and a terminal negative. To specifically describe the structure of a hydrogen-nickel stack is illustrated in Figure 3. The cylindrical nickel-hydrogen stack is formed of a cathode (15) coated with Ni (OH) 2 as an active, positive material and the anode (43) of the hydrogenated alloy coated with a negative active material, which is formed mainly of LaNi5, the AB5 based alloy of
MmNi5, alloy based on AB2 of Ti, V, Zr, etc., a separator (41) which is made of a non-woven fabric and a cellophane tape to avoid a short circuit of the cathode
(15) and the anode (43), a lid (56) as a positive terminal and a housing (58) as a negative terminal and the packaging equipment and further a seal (57), a safety vent (55), a cover plate (53), an insulating tube (51) and an insulating plate (59). A detailed description of the charge and discharge reaction of the cylindrical nickel-hydrogen battery manufactured according to the above method is as follows. A hydrogenated alloy is used as a negative active material, nickel hydroxide is used as a positive active material and the aqueous solution of potassium hydroxide (KOH) is used as an electrolyte. The hydrogenated alloy stores hydrogen ions produced by the unfolding of water in the electrolyte during the charging process and releases hydrogen ions into electrolyte during the discharge process. The loading and unloading reactions are as follows.
discharge at a cathode: Ni (0H) 2 + OH 'NiOOH + H20 + e charge
discharge at an anode: M + H2O + e * MH + OH charge discharge - total: MH + NiOOH M + Ni (OH) 2 - charge
In the above reactions, M is a hydrogenated alloy that can absorb and emit hydrogen ions, identified as a group AB ^ that is made of rare earth elements or a group AB2 that is made of Ti, Zr, V, etc. According to the above reactions, a battery performs a charge and discharge more than a hundred times. The process for producing a hydrogen-nickel, cylindrical battery is as follows. First, the cathode is manufactured by coating a suspension of a positive active material, drying and laminating a metal carrier
(grid) and then an anode is manufactured by coating a suspension of a negative active material, dry and roll on a metal holder. After that, a separator is placed between the cathode and the anode and is wound. In this pole plate winding assembly and the separator is inserted into a can. After that, an electrolyte is emptied into the can and a cap assembly is mounted in the hole in the top. As described in the above descriptions and as shown in Figure 1, conventional cathode and anode pole plates are produced by coating an active material of the paste type (2) on a metallic support (3) to prevent the active material is separated by breaking. The organic binders (1) which is usually used to increase the bond strength between the metal carrier and the active material. Additionally, an agent that increases the viscosity, a dispersing agent and an antifoaming agent to restrict the presence of foams, are added in the process to prepare the cathode and anode pole plates. In addition, the additional use of a conductive agent is necessary, because the above additives decrease the conductivity of the pole plates. However, there is the problem of decreasing the conductivity to some degree, despite adding the above additives. And then the addition of the additives causes problems of corrosion and expansion of the pole plates and causes a difficult process to prepare the same and increases production costs. It is an object of the present invention to provide a stack pole plate and a process for preparing the same. The pole plate sufficiently prevents active materials from being unfolded and improves the conductivity, which causes a decrease in the internal electrical resistance, increases the duration and capacity of the batteries. The corrosion and expansion of the pole plate are not caused in the pole plate of the present invention and the process for preparing them can be carried out easily with low production costs. BRIEF DESCRIPTION OF THE DRAWINGS The appended drawings, which are incorporated in and constitute a part of this specification, illustrate the embodiments of the invention and together with the description, serve to explain the objects, advantages and principles of the invention. In the drawings: Figure 1 is a cross-sectional view of a conventional pole plate, used as a group of a rolled pole plate stack. Figure 2 is a cross-sectional view of a pole plate used as a group of a rolled pole plate stack according to the present invention. Figure 3 is a schematic diagram showing the nickel-hydrogen stack, which was used as a group of a rolled pole plate stack. To achieve the above objects, the present invention provides a pole plate having active material used to provide electricity and a metal for joining the active materials, in which a melting point of the metal is less than that of the active materials. It is preferable that the metal be selected from copper, zinc, indium, aluminum, magnesium or a mixture thereof. And it is also preferable that the active materials are selected from Ni (OH) 2, a hydrogenated alloy based on AB5 or a hydrogenated alloy based on AB2, in which "A" is an alloy of rare earth elements and "B" "is selected from Ni, Al, Mn or Co. An average distance between the active material is preferable from 0.1 to 50 μm and the pole plate is preferably used in a group of a coiled pole plate stack, a stack of type of button or a coin type stack. The present invention also provides a process for preparing a pole plate. The process comprises the steps of 1) melting a binder metal for the active materials, wherein a melting point of the metal is less than that of the active material, 2) mixing the molten metal with the active materials to produce a precomposition of the polo plate, and 3) treat the precomposition of the pole plate with cooling and forming to produce a pole plate. It is preferable that the metal be selected from copper, zinc, indium, aluminum, magnesium or a mixture thereof. And it is also preferable that the materials are selected from Ni (OH) 2, a hydrogenated alloy based on AB5 or a hydrogenated alloy based on AB2, in which "A" is an alloy of rare earth elements and "B" it is selected from Ni, Al, Mn or Co. An average distance between the active material is preferable- from 0.1 to 50 μm and the mixing step is preferably carried out in an inert or vacuum condition. [Representative Example] To test the effects of the present invention, a process for preparing an anode pole plate of a hydrogen-nickel stack, a class of a rolled pole plate stack group, is described as follows to the principles of the present invention. A metal which has a lower melting point than that of an active material (a hydrogenated alloy) used as the anode pole plate of a hydrogen-nickel stack melts. Generally, the metal used in the present invention appears to be a type of powder. The metal, which shows preferred properties of elongation and contraction and stability in an electrolyte can be used. Preferably, the examples of the metal are copper, zinc, indium, aluminum, magnesium or a mixture thereof. The molten material is mixed with the above active material and stirred homogeneously to produce a precomposition of the pole plate. The mixing and stirring processes are preferably carried out in an inert or vacuum condition. As shown in Figure 2, if the stirring process is carried out homogeneously, the active material (2) is distributed in the molten metal (4). In order to give sufficient activity to the active material, it is preferable that an average distance of the particles of the active material be from 0.1 to 50 μm. The distance can be controlled with the amount of the mixed metal. Then, the agitated precomposition is treated with a rapid cooling or a cooling step. And then an anode pole plate used in the nickel-hydrogen battery is produced by means of a cutting procedure, etc. [Preferable Examples] An example of preferable work and reference examples are described in the following. These examples are exemplary only and the present invention is not restricted to the scope of the example. Working Example 1 10 g of mNÍ3 55 ^ 0 3Mno 4 (- ° 0 75 a hydrogenated alloy is mixed, 10 g of a molten copper solution is mixed and stirred homogeneously to produce a pre-rotating plate. the anode pole of a nickel-hydrogen cell in argon gas, then the stirred precompetent is treated with a cooling step, and then an anode pole plate used in a nickel-hydrogen cell of the present invention is produced. by means of rolling and cutting procedures.
Working Examples 2-5 The anode pole plates used in the nickel-hydrogen batteries of the present invention were respectively produced according to the same process as in Work Example 1, except that the copper is replaced with zinc, indium , aluminum and magnesium as a metal. Reference Example 1 A carrier of active material used in a nickel-hydrogen battery was produced by electroplating a steel pierced with a nickel. A suspension in which an active material and additives such as an organic binder, a conducting agent, a viscosity-increasing agent, a dispersing agent and an antifoaming agent are mixed with the coated carrier. And then an anode pole plate used in the nickel-hydrogen stack is produced by means of rolling and cutting processes. As shown in the above examples, the process of the Working Examples are easily performed compared to the Reference Example, because several kinds of additives are not necessary in the Working Examples. The nickel-hydrogen batteries used by the anode pole plates of the present invention show a low, innovative internal electrical resistance. Accordingly, the stack can achieve excellent durability, a high efficiency charge-discharge property, augmented capacity, improved bonding property between the active materials and the preferred internal pressure.
Claims (10)
- CLAIMS 1. A pole plate characterized in that it comprises: active materials used to provide electricity; and a metal for joining active materials, in which a melting point of the metal is less than that of the active materials.
- 2. The pole plate according to claim 1, characterized in that the metal is selected from the group consisting of copper, zinc, indium, aluminum, magnesium and a mixture thereof.
- 3. The pole plate according to claim 1, characterized in that the active materials are selected from the group consisting of Ni (OH) 2, hydrogenated alloy based on AB5 and hydrogenated alloy based on AB2, in which A is the alloy of the rare earth elements and B is selected from the group consisting of Ni, Al, Mn and Co.
- The pole plate according to claim 1, characterized in that an average distance between the active materials is from 0.1 to 50 μm.
- The pole plate according to claim 1, characterized in that the pole plate is used in a stack, selected from the group consisting of a group of coiled pole plate stack, button type stack and stack of type of currency.
- 6. A process for preparing a pole plate, characterized in that it comprises the steps of: melting a bonding metal for the active material, in which the melting point of the metal is less than that of the active materials; mix the molten metal with the active materials to produce a precomposition of the pole plate; and treating the precomposition of the pole plate with cooling and forming to produce a pole plate.
- The process according to claim 6, characterized in that the metal was selected from the group consisting of copper, zinc, indium, aluminum, magnesium and a mixture thereof.
- 8. The process according to claim 6, characterized in that the active materials are selected from the group consisting of Ni (0H) 2, hydrogenated alloy based on AB5 and hydrogenated alloy based on AB2, in which A is the alloy of the elementes based on rare earths and B is selected from the group consisting of Ni, Al, Mn and Co.
- 9. The process according to claim 6, characterized in that an average distance between the active materials is from 0.1 to 50. μm.
- 10. The process according to claim 6, characterized in that the mixing step is carried out in an inert condition or in a vacuum condition.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR9647737 | 1996-10-23 | ||
| KR1019960047737A KR100217712B1 (en) | 1996-10-23 | 1996-10-23 | Electrode for cell and its method |
| KP96-47737 | 1996-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MXPA97004606A true MXPA97004606A (en) | 1998-04-01 |
| MX9704606A MX9704606A (en) | 1998-04-30 |
Family
ID=19478579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX9704606A MX9704606A (en) | 1996-10-23 | 1997-06-19 | A cell pole plate and a process for preparing the same. |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH10134799A (en) |
| KR (1) | KR100217712B1 (en) |
| CN (1) | CN1180937A (en) |
| MX (1) | MX9704606A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6300011B1 (en) * | 2000-01-25 | 2001-10-09 | The Gillete Company | Zinc/air cell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55126961A (en) * | 1979-03-23 | 1980-10-01 | Matsushita Electric Ind Co Ltd | Production of battery electrode |
-
1996
- 1996-10-23 KR KR1019960047737A patent/KR100217712B1/en not_active IP Right Cessation
-
1997
- 1997-06-17 CN CN97112727A patent/CN1180937A/en active Pending
- 1997-06-19 MX MX9704606A patent/MX9704606A/en unknown
- 1997-06-25 JP JP9167794A patent/JPH10134799A/en active Pending
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