CN106784852A - A kind of porous metal composite material - Google Patents
A kind of porous metal composite material Download PDFInfo
- Publication number
- CN106784852A CN106784852A CN201510826979.2A CN201510826979A CN106784852A CN 106784852 A CN106784852 A CN 106784852A CN 201510826979 A CN201510826979 A CN 201510826979A CN 106784852 A CN106784852 A CN 106784852A
- Authority
- CN
- China
- Prior art keywords
- porous metal
- porous
- composite material
- metal composite
- battery
- 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.)
- Pending
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
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- 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
- H01M4/66—Selection of materials
- H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
-
- 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)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention provides a kind of porous metal composite material, carbon nano-tube material is compounded with being carried in three-dimensional netted porous metal material overlying, CNT caliber is 10~50nm, 5~10nm of wall thickness, 1~6 μm of length.Porous metal composite material of the invention, due to having carried the CNT with stronger mechanical performance in porous metal material overlying, enhance the compactness and intensity of its internal hole connection structure, thus the tensile strength of material is not only increased, the more effective extension property for enhancing material, the electric conductivity of porous metal material is improved simultaneously, when using it for making the framework material of battery, can thus lift the energy density and bulk density of battery.
Description
Technical field
The present invention relates to a kind of porous material, more particularly to a kind of porous metal composite material.
Background technology
The main framework material of Ni-MH power cell --- nickel porous are a kind of typical porous metal materials, at present, general nickel porous are all highly developed in the preparation and application of civilian baby battery, but in terms of automobile power is applied to, but larger problem is occurred in that, following aspect is mainly manifested in：
（1）The starting of automobile needs the larger current discharge, the dependency structure of this performance requirement battery to bear the electric discharge of larger current in moment, and requires the electric discharge balance of electric current.And the Ni-MH battery that this porous nickel materials make at present is when the electric discharge of EV or HEV automobile starts is run into, framework material is very easy to be damaged, specifically show as structural break, battery diaphragm is caused to pierce through, battery plus-negative plate short circuit, heavy then cause battery explosion, threat to life safety gently then causes the use of electric automobile to be affected.
（2）The power supply that pure electric automobile requirement is applied to can have larger energy density and bulk density, and current this porous nickel materials, since it is desired that ensuring the certain mechanical performance index of material, the thickness of whole material cannot be reduced effectively, therefore its bulk density cannot be lifted by process improving, so as to improve the energy density of battery.
Other porous materials, such as Porous Cu, porous ferronickel, also due to the tensile strength of physical property particularly mechanical property is relatively low without being suitable for use with, limit its popularization and application when the fields such as catalyst carrier, filtering material are applied to.
The content of the invention
The present invention is intended to provide the porous metal composite material of a kind of mechanical property for effectively improving material particularly tensile strength and elongation percentage.The present invention program is as follows：
A kind of porous metal composite material, carbon nano-tube material is compounded with being carried in three-dimensional netted porous metal material overlying.
Considering cost, manufacture craft etc., the preferred multi-wall carbon nano-tube tube material of described CNT.Found through experiment, multi-walled carbon nano-tubes caliber is 10~50nm, 5~10nm of wall thickness, 1~6 μm of ratio of length is convenient.
Above-mentioned material can be prepared by the following method：Common porous metal material is placed in 10~30min of immersion in metal nitrate, drying is then taken out, then dried porous metal composite material is placed in heat-treatment furnace, be passed through nitrogen and acetylene gaseous mixture, 4~10h of heat treatment is carried out under the conditions of 500~800 DEG C
After cooling.
Compared with prior art, advantages of the present invention is embodied in：
1. porous metal composite material of the invention, due to having carried the CNT with stronger mechanical performance in porous metal material overlying, the compactness and intensity of its internal hole connection structure are enhanced, the tensile strength of material is thus not only increased, the extension property of material is more effectively enhanced.
2. experiment finds, porous metal composite material of the invention, not only effectively improve the physical properties such as specific surface area and tensile strength, the elongation percentage of material, the electric conductivity of porous metal material is improved simultaneously, when using it for making the framework material of battery, the energy density and bulk density of battery can be thus lifted.
Brief description of the drawings
The SEM figures of the porous metal composite material of Fig. 1 embodiments 1
The SEM figures of Fig. 2 common porous metallic nickel materials
The porous nickel composite material of Fig. 3 embodiments 1 and the specific surface area comparison diagram of Conventional porous nickel material
The porous nickel composite material of Fig. 4 embodiments 1 and the tensile strength comparison diagram of Conventional porous nickel material
The porous nickel composite material of Fig. 5 embodiments 1 assembles Ni-MH battery loop test comparison diagram with Conventional porous nickel material.
Specific embodiment
Embodiment 1
By 95PPI, thickness is placed in the nickel nitrate solution that nitrate concentration is 1.5mol/L for the porous nickel materials of 1.6mm and soaks 25min, then take out drying, dried porous nickel materials are placed in heat-treatment furnace again, comprising the mixed atmosphere being made up of nitrogen and acetylene in heat-treatment furnace, gas volume ratio is 3：2, heat treatment 8h, cooling are incubated under the conditions of 580 DEG C.
The material that the above method is prepared is placed in observed under electron microscope and paired observation for convenience, the Conventional porous nickel material of same specification is also placed in observed under electron microscope, its SEM figures are as shown in Figure 2.Contrast discovery, multi-wall carbon nano-tube tube material is being compounded with being carried in three-dimensional netted porous nickel metal material overlying.Through measurement, these multi-walled carbon nano-tubes calibers are distributed as 10~50nm, 5~10nm of wall thickness, 1~6 μm of length.
The above-mentioned porous nickel composite material that has carried CNT and existing Conventional porous nickel metal material of covering is carried out into specific surface area and tensile strength detection under the same conditions.Test result is as shown in Figure 3 and Figure 4.Can be found from Fig. 3, porous nickel composite material specific surface area average value of the invention is 2075.7cm2/cm3, and the specific surface area average value of Conventional porous metal material is in 1778.4 cm2/cm3, the former improves nearly 15% than the latter in terms of comprehensive specific surface area.Can reflect from Fig. 4, in Tensile strength aspect of performance, the former improves nearly 23% than the latter.
The porous nickel composite material that has carried CNT is covered by above-mentioned and existing Conventional porous nickel material is assembled into Ni-MH battery under the same conditions, electrochemistry cycle performance test is carried out under the following conditions：
Constant-current charge：1C charges to 1.9V
Constant-voltage charge：Constant pressure 1.9V, 1C current limitation 50mA
Constant-current discharge：1C is discharged to 1.2V
Test result is as shown in figure 5, from figure 5 it can be seen that the cycle performance of the battery assembled using above-mentioned porous nickel composite material is nearlyer by 20% than the battery lifting of the assembling using common porous nickel material.
Embodiment 2
Using preparation method substantially the same manner as Example 1, the process conditions being different from are as follows：
1. 95 PPI are used, and thickness is that the porous copper product of 1.6 mm is matrix material；
2. porous copper product is placed in nitrate concentration to soak 20min in 2.5mol/L copper nitrate solutions；
3. heat treatment uses nitrogen and acetylene gas mixture, and the volume ratio of wherein gas is 75% nitrogen, and 25% acetylene, heat treatment temperature is 650 DEG C, and heat treatment time is 6h.
The material that the above method is prepared is placed in observed under electron microscope, multi-wall carbon nano-tube tube material is compounded with being carried in three-dimensional netted Porous Cu metal material overlying.Through measurement, these multi-walled carbon nano-tubes calibers are distributed as 10~50nm, 5~10nm of wall thickness, 1~6 μm of length.
The above-mentioned more conventional porous copper product of the specific surface area for covering the porous carbon/carbon-copper composite material for having carried CNT can lift nearly 16%, and the tensile strength of material can also lift 25%.
Embodiment 3
Prepared using the substantially similar way of embodiment 1, the process conditions being different from are as follows：
1. 110PPI is used, and thickness is matrix material for the nickel porous iron material of 1.7mm；
2. nickel porous iron material is placed in nitrate concentration to soak 10min in 4.5mol/L nickel nitrate iron mixed solutions；
3. heat treatment uses nitrogen and acetylene gas mixture, and the wherein volume ratio of gas is 70% nitrogen, and 30% acetylene, heat treatment temperature is 800 DEG C, and heat treatment time is 4h；
The material that the above method is prepared is placed in observed under electron microscope, multi-wall carbon nano-tube tube material is compounded with being carried in three-dimensional netted nickel porous ferrous material overlying.Through measurement, these multi-walled carbon nano-tubes calibers are distributed as 10~50nm, 5~10nm of wall thickness, 1~6 μm of length.
Above-mentioned covering has carried the nickel porous more conventional nickel porous iron material of ferrous metal composite specific surface area of CNT and can lift nearly 20%, and the tensile strength of material can also lift 20%.
Claims (3)
1. a kind of porous metal composite material, it is characterised in that be compounded with carbon nano-tube material being carried in three-dimensional netted porous metal material overlying.
2. porous metal composite material as claimed in claim 1, it is characterised in that：The preferred multi-wall carbon nano-tube tube material of described CNT.
3. porous metal composite material as claimed in claim 2, it is characterised in that：Described multi-walled carbon nano-tubes caliber is 10~50nm, 5~10nm of wall thickness, 1~6 μm of length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826979.2A CN106784852A (en) | 2015-11-24 | 2015-11-24 | A kind of porous metal composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826979.2A CN106784852A (en) | 2015-11-24 | 2015-11-24 | A kind of porous metal composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106784852A true CN106784852A (en) | 2017-05-31 |
Family
ID=58963904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510826979.2A Pending CN106784852A (en) | 2015-11-24 | 2015-11-24 | A kind of porous metal composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106784852A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108834389A (en) * | 2018-07-09 | 2018-11-16 | 安徽理工大学 | A kind of preparation method of the derivative nano combined absorbing material of porous carbon/multi-walled carbon nanotube of bimetallic organic frame |
| CN109016778A (en) * | 2017-06-09 | 2018-12-18 | 清华大学 | The preparation method of porous metals composite construction |
| CN109037699A (en) * | 2017-06-09 | 2018-12-18 | 清华大学 | Fuel cell electrode and fuel cell |
| JP2019002922A (en) * | 2017-06-09 | 2019-01-10 | ツィンファ ユニバーシティ | Biological sensor electrode and biological sensor |
| US10852267B2 (en) | 2017-05-08 | 2020-12-01 | Tsinghua University | Biosensor electrode and biosensor using the same |
-
2015
- 2015-11-24 CN CN201510826979.2A patent/CN106784852A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10852267B2 (en) | 2017-05-08 | 2020-12-01 | Tsinghua University | Biosensor electrode and biosensor using the same |
| CN109016778A (en) * | 2017-06-09 | 2018-12-18 | 清华大学 | The preparation method of porous metals composite construction |
| CN109037699A (en) * | 2017-06-09 | 2018-12-18 | 清华大学 | Fuel cell electrode and fuel cell |
| JP2019002922A (en) * | 2017-06-09 | 2019-01-10 | ツィンファ ユニバーシティ | Biological sensor electrode and biological sensor |
| CN109037699B (en) * | 2017-06-09 | 2021-10-12 | 清华大学 | Fuel cell electrode and fuel cell |
| US11192337B2 (en) | 2017-06-09 | 2021-12-07 | Tsinghua University | Method for making composite structure with porous metal |
| CN108834389A (en) * | 2018-07-09 | 2018-11-16 | 安徽理工大学 | A kind of preparation method of the derivative nano combined absorbing material of porous carbon/multi-walled carbon nanotube of bimetallic organic frame |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102709569A (en) | Porous metal composite material | |
| CN106784852A (en) | A kind of porous metal composite material | |
| CN102690968B (en) | Method for preparing porous metal composite material | |
| KR101786407B1 (en) | Sulfur-based positive-electrode active material and lithium-ion secondary battery | |
| Shen et al. | In situ thermally cross‐linked polyacrylonitrile as binder for high‐performance silicon as lithium ion battery anode | |
| WO2020125516A1 (en) | Lithium metal electrode, preparation method therefor and lithium battery | |
| CN109148847B (en) | Boron-doped modified hard carbon-coated negative electrode material with high rate performance and liquid-phase preparation method thereof | |
| KR20170003646A (en) | Nitrogen-doped graphene coated nano-sulfur anode composite material, and preparation method and application thereof | |
| JP2014517993A (en) | High-capacity lithium-ion battery containing metallic conductive material | |
| CN104247105B (en) | Comprise negative active core-shell material of porous silicon oxide carbon material compound and preparation method thereof | |
| WO2016202141A1 (en) | Tin/graphene oxide negative-electrode material for lithium batteries and preparation method therefor | |
| CN104795543B (en) | A kind of concave convex rod base sulphur composite and preparation method thereof and stored energy application | |
| WO2017107807A1 (en) | Method for fabricating lithium-ion battery cathode material and application thereof | |
| CN106711457A (en) | Nitrogen-enriched carbon shell cladded nano core-shell-structure carbonaceous carrier as well as preparation method and application thereof | |
| CN102751472A (en) | Cathode manufacturing method of lithium ion secondary battery | |
| CN102623677A (en) | Process for producing high capacity molybdenum dioxide/carbon cathode materials | |
| CN104157834A (en) | Application of spiral nanometer carbon fiber as lithium ion battery cathode material and preparation method of battery cathode | |
| CN109860526A (en) | The preparation method of graphite type material doping metals oxalates lithium battery composite negative pole material | |
| CN109346332A (en) | Lithium ion mixed capacitor and preparation method thereof based on alginic acid cross-linked structure | |
| CN102623687A (en) | Preparation method for high-capacity molybdenum dioxide anode material and application of high-capacity molybdenum dioxide anode material | |
| CN109665523A (en) | A kind of preparation method and supercapacitor of graphene composite stone oil coke matrix activated carbon | |
| CN107968205A (en) | A kind of method of the modified fluorinated carbon positive electrode of chemical reduction method | |
| CN109428062A (en) | A kind of graphene-silicon composite cathode material and preparation method thereof | |
| CN105140488A (en) | Anode material for lithium batteries | |
| Filkusová et al. | Effect of multi-walled carbon nanotubes on the thermal stability and surface morphology of LiFePO4 cathode material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |