CN102024981A - High-energy secondary battery - Google Patents
High-energy secondary battery Download PDFInfo
- Publication number
- CN102024981A CN102024981A CN2010105460431A CN201010546043A CN102024981A CN 102024981 A CN102024981 A CN 102024981A CN 2010105460431 A CN2010105460431 A CN 2010105460431A CN 201010546043 A CN201010546043 A CN 201010546043A CN 102024981 A CN102024981 A CN 102024981A
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- Prior art keywords
- energy secondary
- negative pole
- secondary battery
- nickel
- secondary cell
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a high-energy secondary battery, in particular to a high-energy secondary battery containing binders and conductive agents. The high-energy secondary battery comprises an anode, a cathode, a diaphragm, alkaline aqueous solution or polymer electrolyte, wherein the cathode is nickel hydroxide coated or pressed on foamed nickel or sintered nickel; the cathode and the anode are separated by the diaphragm or polymer electrolyte; and the cathode and the anode are respectively led out by leads to be connected with the two ends, which are mutually insulated, of the battery case. The high-energy secondary battery has the characteristics of high electrochemical activity, various preparation methods and simple preparation process.
Description
Technical field
The present invention relates to the high energy secondary cell, particularly comprise the high energy secondary cell of binding agent and conductive agent.
Background technology
Though 21 century might progressively be set up the energy resource structure framework based on Hydrogen Energy, but high energy secondary cell technology is also developing rapidly, no matter as " replacement technique " or " transitional technology ", all will in the energy resource structure in future, occupy critical positions and (look into full property work, chemical power source selects opinion, and 2005).Metal hydride/nickel secondary batteries is as the important representative of high energy secondary cell, and the mutual conversion by between chemistry and electrochemical reaction realization Hydrogen Energy and the electric energy combines Hydrogen Energy and high energy secondary cell technology.But the reversible capacity of the AB5 type hydrogen-storage electrode that adopts in metal current hydride/nickel secondary batteries is only for about 280-300mAh/g, and it is very difficult to want continuation its energy density of raising and power density.
Summary of the invention
In order to solve above-mentioned drawback, the invention provides a kind of high energy secondary cell, form and comprise negative pole, positive pole, barrier film, alkaline aqueous solution or polymer dielectric; Wherein just very apply or be compressed on the nickel hydroxide on nickel foam or the sintrered nickel; Separate by barrier film or polymer dielectric between positive pole and the negative pole; Anodal being picked out with the battery case two ends of mutually insulated by lead-in wire respectively with negative pole links to each other.It is characterized in that: negative pole comprises binding agent and the described binding agent of conductive agent and is selected from Kynoar, polytetrafluoroethylene, polyacrylate, methylcellulose, polymethacrylates, the polyvinyl alcohol one or more.
Described conductive agent is selected from one or more in metal oxide, carbonaceous mesophase spherules, metal powder, acetylene black, graphite, the alloyed powder.
Description of drawings
Fig. 1 is the discharge capacity figure of secondary cell of the present invention.
Embodiment
Get 2.45 gram metal Ni, 1.26 gram metal Fe, 0.23 gram B places ball grinder under nitrogen atmosphere, and ball milling after 40 hours takes out product.Through inducing the coupling plasma spectroscopy, 99.7%, 0 the quality that the quality sum of Ni, Fe and B accounts for the boride gross mass in the gained boride accounts for 0.3%.
With the boride of gained, as the polytetrafluoroethylene of binding agent, mix as the Ni powder of conductive agent mass ratio by 80: 5: 15, roll film forming, make sheet with the afflux extreme pressure then and make negative pole.
Prepared negative pole and the nickel hydroxide positive plate that is compressed on the nickel foam are assembled into alkaline secondary cell, and electrolyte adopts the alkaline aqueous solution of 8mol/l, and wherein KOH concentration is 7.9mol/l, and LiOH concentration is 0.1mol/l.The negative pole of alkaline secondary cell and anodal the immersion in electrolyte after 24 hours charge and discharge carrying out constant current with the current density of 10mA/g by discharging and recharging of computer control on the instrument, and the discharge capacity that records reaches 306mAh/g, and has excellent cycle performance.
Equally, getting concentration and be 10% CoCl2 solution 40ml, place flask, is that 5% NaBH4 solution joins in the flask then with 100ml concentration; In this process, the solution in the flask is carried out sonic oscillation.Reaction stops sonic oscillation after finishing, and makes the suspension-turbid liquid layering.Supernatant liquor is removed; The lower sediment thing is taken out, with deionized water wash, suction filtration.The sediment that above-mentioned suction filtration is crossed obtains unbodied boride after 40 ℃ of following vacuumize.The quality sum of Co and B accounts for the boride gross mass in the gained boride 38.3%, 0 and H account for 61.7%.
With the boride of gained, as the Kynoar of binding agent, mix by 85: 5: 10 mass ratio as the CoO of conductive agent, roll film forming, make sheet with the afflux extreme pressure then and make negative pole.
Prepared negative pole and the nickel hydroxide positive plate that is compressed on the nickel foam are assembled into alkaline secondary cell, and electrolyte adopts the KOH aqueous solution of 6mol/l.The negative pole of alkaline secondary cell and positive pole soak after 48 hours in electrolyte, charge and discharge carrying out constant current with the current density of 30mA/g on the instrument by discharging and recharging of computer control, the discharge capacity that records reaches 342mAh/g, and have excellent cycle performance, its discharge capacity with the change curve of cycle-index as shown in Figure 1.
The invention is not restricted to the foregoing description; in design scope of the present invention; the description of book according to the above description, those of ordinary skill in the art also can make some conspicuous changes, but these changes all should fall within the protection range of claim of the present invention.
Claims (2)
1. a high energy secondary cell is formed and is comprised negative pole, positive pole, barrier film, alkaline aqueous solution or polymer dielectric; Wherein just very apply or be compressed on the nickel hydroxide on nickel foam or the sintrered nickel; Separate by barrier film or polymer dielectric between positive pole and the negative pole; Anodal being picked out with the battery case two ends of mutually insulated by lead-in wire respectively with negative pole links to each other.It is characterized in that: negative pole comprises binding agent and the described binding agent of conductive agent and is selected from Kynoar, polytetrafluoroethylene, polyacrylate, methylcellulose, polymethacrylates, the polyvinyl alcohol one or more.
2. by the described high energy secondary cell of claim 1, it is characterized in that: described conductive agent is selected from one or more in metal oxide, carbonaceous mesophase spherules, metal powder, acetylene black, graphite, the alloyed powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105460431A CN102024981A (en) | 2010-11-16 | 2010-11-16 | High-energy secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105460431A CN102024981A (en) | 2010-11-16 | 2010-11-16 | High-energy secondary battery |
Publications (1)
| Publication Number | Publication Date |
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| CN102024981A true CN102024981A (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105460431A Pending CN102024981A (en) | 2010-11-16 | 2010-11-16 | High-energy secondary battery |
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| CN (1) | CN102024981A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314770A (en) * | 2021-04-30 | 2021-08-27 | 武汉理工大学 | Alkaline secondary battery and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538543A (en) * | 2003-10-24 | 2004-10-20 | 清华大学 | Carbon nanometer pipe high energy storage battery negative pole material and is preparation method |
| CN1901265A (en) * | 2006-07-20 | 2007-01-24 | 北京理工大学 | High energy alkaline secondary cell |
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2010
- 2010-11-16 CN CN2010105460431A patent/CN102024981A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538543A (en) * | 2003-10-24 | 2004-10-20 | 清华大学 | Carbon nanometer pipe high energy storage battery negative pole material and is preparation method |
| CN1901265A (en) * | 2006-07-20 | 2007-01-24 | 北京理工大学 | High energy alkaline secondary cell |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314770A (en) * | 2021-04-30 | 2021-08-27 | 武汉理工大学 | Alkaline secondary battery and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20110420 |