CN108417780A - A kind of preparation and its application of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure - Google Patents
A kind of preparation and its application of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure Download PDFInfo
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Abstract
A kind of preparation and its application of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure, sodium hydroxide is dissolved in deionized water and obtains solution A；Stannic chloride is added into solution A and obtains solution B；Ammonium fluoride is added into solution B and obtains solution or emulsion C；Solution C is transferred to hydrothermal reaction kettle, the clean stainless (steel) wire of pre-wash is placed in solution C and carries out hydro-thermal reaction, is cooled down after reaction, dry stainless (steel) wire carrying tin oxide nanostructure under certain temperature；Stainless (steel) wire carrying tin oxide nanostructure is placed in organic solution, stainless (steel) wire load Coated with Organic Matter tin oxide nano structure is reacted to obtain；Stainless (steel) wire load Coated with Organic Matter tin oxide nano structure is placed in tube furnace and reacts to obtain stainless (steel) wire load carbon coating tin oxide nano structure；The present invention improves discharge and recharge, high rate performance and the cycle performance of sodium-ion battery.
Description
Technical field
The present invention relates to secondary power battery material technical field, more particularly to a kind of anode material of lithium-ion battery is stainless
Steel mesh loads the preparation and its application of carbon covered stannum rice structure.
Background technology
Oil, natural gas and coal are not the inexhaustible energy, and the gas of combustion of fossil fuel discharge
Serious Global Environmental Problems can be brought.In addition, national security can be threatened by relying on non-renewable resources import for a long time.Therefore generation
New, clean, green fungible energy source and energy conversion and storage system are all being found by Jie Ge states.Wherein chemical-electrical
Source is one of most important research direction, lithium ion battery be exactly grow up along with metal secondary batteries it is a kind of novel
Electrochmical power source.But content is few during elemental lithium is expensive and the earth's crust, with increasing for lithium ion battery applications, the demand of lithium
Also it greatly increases.Therefore it needs to develop other power alkali metal-ion batteries.
Sodium element is located in the periodic table of elements immediately below elemental lithium, has similar physicochemical properties, and sodium with lithium
It is the 6th abundant element of reserves in the earth's crust, it is widely distributed, therefore develop the sodium-ion battery technology tool of extensive stored energy application
There is important strategic importance.The raw material of sodium-ion battery is extensive, cheap, has become the heat of novel battery energy storage technology at present
Point.Sodium ion radius (0.98) is more than lithium ion radius (0.69) so that overcomes needed for sodium ion diffusion in charge and discharge process
Potential barrier bigger, to make diffusion rate substantially reduce, therefore need to find suitable battery cathode storage sodium material.Currently,
The sodium ion negative material of research mainly has carbon material, conversion class material etc..It is oxide material mostly to convert class material, is not had
Its corresponding metallic conductivity is high, while volume occurs for the insertion with abjection of sodium ion in single carbon-coated nano structural material
Expansion ratio oxide is small.Therefore sodium-ion battery first charge-discharge amount, cyclical stability and conductivity are improved.
Stainless (steel) wire loads carbon covered stannum rice structure as a kind of novel sodium-ion battery negative electrode active material, prepares
Method and correlative study work yet there are no report.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of anode material of lithium-ion batteries
Stainless (steel) wire loads the preparation and its application of carbon covered stannum rice structure, invention enhances the electric conductivity of sodium-ion battery,
Modulation slurry is eliminated simultaneously and applies blade technolgy, avoids the performance that battery is influenced using binder.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of preparation of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure, including following step
Suddenly：
Step 1：
0.625g~1.808g sodium hydroxides will be proportionally dissolved in 40mL deionized waters and obtain solution A；
Step 2：
Under magnetic stirring, stannic chloride is added into above-mentioned solution A and obtains solution B, the mass ratio of sodium hydroxide and stannic chloride
It is 2:1~4:1；
Step 3：
Under magnetic stirring, ammonium fluoride is added into above-mentioned solution B and obtains solution or emulsion C, sodium hydroxide and ammonium fluoride
Mass ratio be 12:1~36:1；
Step 4：
Above-mentioned solution C is transferred to hydrothermal reaction kettle, the clean stainless (steel) wire of pre-wash is placed in solution C, is carried out
Hydro-thermal reaction cools down after reaction, and stainless (steel) wire is cleaned with deionized water and ethyl alcohol, dry under certain temperature, obtains stainless steel
Net carrying tin oxide nanostructure；
Step 5：
Above-mentioned stainless (steel) wire carrying tin oxide nanostructure is placed in organic solution, reacts a timing at a certain temperature
Between, obtain stainless (steel) wire load Coated with Organic Matter tin oxide nano structure；
Step 6：
Above-mentioned stainless (steel) wire load Coated with Organic Matter tin oxide nano structure is placed in tube furnace, is roasted at a certain temperature
Certain time is burnt, calcination atmosphere is argon gas, obtains stainless (steel) wire load carbon coating tin oxide nano structure；
Step 7：
Above-mentioned carbon stainless steel net load carbon coating tin oxide nano structure is placed in tube furnace, in reducing gas hydrogen
It is made annealing treatment under atmosphere and predetermined temperature and just obtains final product stainless (steel) wire load carbon covered stannum rice structure after a certain period of time.
In the step 4, hydrothermal temperature be 160~200 DEG C, the reaction time be 0.5~for 24 hours.
In the step 5, organic carbon source is glucose, dopamine and beta-cyclodextrin etc., and reaction temperature is 160 DEG C~200
DEG C, 4 hours.
In the step 6, annealing temperature is 600 DEG C~750 DEG C, and annealing time is 1~4h, the flow velocity of argon gas is 10~
100sccm。
In the step 7, annealing temperature is 600~750 DEG C, and annealing time is 1~4h, the flow velocity of hydrogen is 300~
400sccm。
A kind of application of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure, stainless (steel) wire is born
It carries carbon covered stannum rice structural material and is washed into a diameter of 8mm disks as active material electrode, sodium is used as to electrode, and electrolyte is
(volume ratio of EC and DMC are 1 for the ethylene carbonate (EC) of 1M sodium hexafluoro phosphates and the solution of carbonic acid dioctyl phthalate (DMC)：1), gather
Propylene microcellular film is battery diaphragm, is assembled into button cell；After assembled button cell is stood 12 hours,
LANDCT2100A carries out electrochemical property test.Test voltage is 0.01V~2.6V, current density 50mA/g.
Beneficial effects of the present invention：
Invention enhances the electric conductivities of sodium-ion battery, while eliminating modulation slurry and applying blade technolgy, avoid making
The performance of battery is influenced with binder.By controlling the proportioning of reaction dissolvent, sintering temperature and soaking time improve the present invention
The size of substance, pattern and structure.The specific surface area of stainless (steel) wire load carbon coating tin oxide nano structure prepared by the present invention
Greatly, very large space stores sodium ion in charge and discharge process, carbon-coated rock-steady structure to be not easy in charge and discharge process
It caves in.Surfactant NH is used in the present invention4F can obtain the carbon-coated nano structure of size uniformity on stainless (steel) wire
Array stannic oxide.
Description of the drawings
Fig. 1 stainless (steel) wires load carbon covered stannum rice structure preparation process schematic diagram.
Specific implementation mode
Invention is further described in detail below in conjunction with the accompanying drawings.
Embodiment 1
A kind of preparation method of stainless (steel) wire load carbon covered stannum rice structure, includes the following steps：
1) sodium hydroxide that quality is 0.625g, under magnetic stirring, is dissolved in 40ml deionized waters and obtains solution A；
2) 0.47g stannic chlorides, under magnetic stirring, are added into above-mentioned solution A and obtain solution B；
3) 0.05g ammonium fluorides, under magnetic stirring, are added into B solution and obtain solution or emulsion C；
4), solution C is transferred in stainless steel cauldron, while the clean stainless (steel) wire of pre-wash is placed in solution
In, hydro-thermal reaction is carried out, stainless (steel) wire is cleaned with deionized water and ethyl alcohol, after being reacted 24 hours at a temperature of 200 DEG C, just obtained
Stainless (steel) wire carrying tin oxide nanostructure；
5), 4) the stainless (steel) wire tin supported nanostructure obtained in is placed in 3.6g glucose 40mL deionized waters, 180
The glucose cladding tin oxide nano structure of stainless (steel) wire load is obtained after being impregnated 4 hours in DEG C；
6), 3) the stainless (steel) wire load organic carbon source cladding tin oxide nano structure obtained in is placed in tube furnace,
Just final product stainless (steel) wire load carbon coating oxidation sijna is obtained after being made annealing treatment 2 hours at a temperature of 700 DEG C in argon gas atmosphere
Rice structure；
7), 4) the stainless (steel) wire load carbon coating tin oxide nano structure obtained in is placed in tube furnace, in hydrogen gas
650 DEG C of temperatures just obtain final product stainless (steel) wire load carbon covered stannum rice structure in atmosphere after 1 hour；
8), the assembling of button cell, using stainless (steel) wire load carbon covered stannum rice structure be washed into a diameter of 8mm disks as
Active material electrode, sodium are used as to electrode, and electrolyte is the ethylene carbonate (EC) and carbonic acid dioctyl phthalate of 1M sodium hexafluoro phosphates
(DMC) (volume ratio of EC and DMC are 1 to solution：1), microporous polypropylene membrane is battery diaphragm, is assembled into button cell；
9) after, assembled button cell stands 24 hours, electrochemical property test is carried out in LANDCT2100A.Test
Voltage is 0.01V~2.6V, current density 50mA/g.
Embodiment 2
A kind of preparation method of stainless (steel) wire load carbon covered stannum rice structure, includes the following steps：
1) sodium hydroxide that quality is 0.9375g, under magnetic stirring, is dissolved in 40ml deionized waters and obtains solution A；
2) 0.47g stannic chlorides, under magnetic stirring, are added into above-mentioned solution A and obtain solution B；
3) 0.05g ammonium fluorides, under magnetic stirring, are added into B solution and obtain solution or emulsion C；
4), solution C is transferred in stainless steel cauldron, while the clean stainless (steel) wire of pre-wash is placed in solution
In, hydro-thermal reaction is carried out, stainless (steel) wire is cleaned with deionized water and ethyl alcohol, after being reacted 24 hours at a temperature of 200 DEG C, just obtained
Stainless (steel) wire carrying tin oxide nanostructure；
5), 4) the stainless (steel) wire tin supported nanostructure obtained in is placed in 3.6g glucose 40mL deionized waters, 180
The glucose cladding tin oxide nano structure of stainless (steel) wire load is obtained after being impregnated 4 hours in DEG C；
6), 3) the stainless (steel) wire load organic carbon source cladding tin oxide nano structure obtained in is placed in tube furnace,
Just final product stainless (steel) wire load carbon coating oxidation sijna is obtained after being made annealing treatment 2 hours at a temperature of 700 DEG C in argon gas atmosphere
Rice structure；
7), 4) the stainless (steel) wire load carbon coating tin oxide nano structure obtained in is placed in tube furnace, in hydrogen gas
650 DEG C of temperatures just obtain final product stainless (steel) wire load carbon covered stannum rice structure in atmosphere after 1 hour；
8), the assembling of button cell, using stainless (steel) wire load carbon covered stannum rice structure be washed into a diameter of 8mm disks as
Active material electrode, sodium are used as to electrode, and electrolyte is the ethylene carbonate (EC) and carbonic acid dioctyl phthalate of 1M sodium hexafluoro phosphates
(DMC) (volume ratio of EC and DMC are 1 to solution：1), microporous polypropylene membrane is battery diaphragm, is assembled into button cell；
9) after, assembled button cell stands 24 hours, electrochemical property test is carried out in LANDCT2100A.Test
Voltage is 0.01V~2.6V, current density 50mA/g.
Embodiment 3
A kind of preparation method of stainless (steel) wire load carbon covered stannum rice structure, includes the following steps：
1) sodium hydroxide that quality is 1.25g, under magnetic stirring, is dissolved in 40ml deionized waters and obtains solution A；
2) 0.47g stannic chlorides, under magnetic stirring, are added into above-mentioned solution A and obtain solution B；
3) 0.05g ammonium fluorides, under magnetic stirring, are added into B solution and obtain solution or emulsion C；
4), solution C is transferred in stainless steel cauldron, while the clean stainless (steel) wire of pre-wash is placed in solution
In, hydro-thermal reaction is carried out, stainless (steel) wire is cleaned with deionized water and ethyl alcohol, after being reacted 24 hours at a temperature of 200 DEG C, just obtained
Stainless (steel) wire carrying tin oxide nanostructure；
5), 4) the stainless (steel) wire tin supported nanostructure obtained in is placed in 3.6g glucose 40mL deionized waters, 180
The glucose cladding tin oxide nano structure of stainless (steel) wire load is obtained after being impregnated 4 hours in DEG C；
6), 3) the stainless (steel) wire load organic carbon source cladding tin oxide nano structure obtained in is placed in tube furnace,
Just final product stainless (steel) wire load carbon coating oxidation sijna is obtained after being made annealing treatment 2 hours at a temperature of 700 DEG C in argon gas atmosphere
Rice structure；
7), 4) the stainless (steel) wire load carbon coating tin oxide nano structure obtained in is placed in tube furnace, in hydrogen gas
650 DEG C of temperatures just obtain final product stainless (steel) wire load carbon covered stannum rice structure in atmosphere after 1 hour；
8), the assembling of button cell, using stainless (steel) wire load carbon covered stannum rice structure be washed into a diameter of 8mm disks as
Active material electrode, sodium are used as to electrode, and electrolyte is the ethylene carbonate (EC) and carbonic acid dioctyl phthalate of 1M sodium hexafluoro phosphates
(DMC) (volume ratio of EC and DMC are 1 to solution：1), microporous polypropylene membrane is battery diaphragm, is assembled into button cell；
9) after, assembled button cell stands 24 hours, electrochemical property test is carried out in LANDCT2100A.Test
Voltage is 0.01V~2.6V, current density 50mA/g.
Embodiment 4
A kind of preparation method of stainless (steel) wire load carbon covered stannum rice structure, includes the following steps：
1) sodium hydroxide that quality is 1.808g is dissolved in 40ml deionized waters and obtains solution A；
2) 0.47g stannic chlorides, under magnetic stirring, are added into above-mentioned solution A and obtain solution B；
3) 0.05g ammonium fluorides, under magnetic stirring, are added into B solution and obtain solution or emulsion C；
4), solution C is transferred in stainless steel cauldron, while the clean stainless (steel) wire of pre-wash is placed in solution
In, hydro-thermal reaction is carried out, stainless (steel) wire is cleaned with deionized water and ethyl alcohol, after being reacted 24 hours at a temperature of 200 DEG C, just obtained
Stainless (steel) wire carrying tin oxide nanostructure；
5), 4) the stainless (steel) wire tin supported nanostructure obtained in is placed in 3.6g glucose 40mL deionized waters, 180
The glucose cladding tin oxide nano structure of stainless (steel) wire load is obtained after being impregnated 4 hours in DEG C；
6), 3) the stainless (steel) wire load organic carbon source cladding tin oxide nano structure obtained in is placed in tube furnace,
Just final product stainless (steel) wire load carbon coating oxidation sijna is obtained after being made annealing treatment 2 hours at a temperature of 700 DEG C in argon gas atmosphere
Rice structure；
7), 4) the stainless (steel) wire load carbon coating tin oxide nano structure obtained in is placed in tube furnace, in hydrogen gas
650 DEG C of temperatures just obtain final product stainless (steel) wire load carbon covered stannum rice structure in atmosphere after 1 hour；
8), the assembling of button cell, using stainless (steel) wire load carbon covered stannum rice structure be washed into a diameter of 8mm disks as
Active material electrode, sodium are used as to electrode, and electrolyte is the ethylene carbonate (EC) and carbonic acid dioctyl phthalate of 1M sodium hexafluoro phosphates
(DMC) (volume ratio of EC and DMC are 1 to solution：1), microporous polypropylene membrane is battery diaphragm, is assembled into button cell；
9) after, assembled button cell stands 24 hours, electrochemical property test is carried out in LANDCT2100A.Test
Voltage is 0.01V~2.6V, current density 50mA/g.
As shown in Figure 1：
1), the sodium hydroxide of certain mass, which is dissolved in 40mL deionized waters, obtains solution A；
2) stannic chloride, under magnetic stirring, is added into above-mentioned solution A and obtains solution B；
3) ammonium fluoride, under magnetic stirring, is added into above-mentioned solution B and obtains solution or emulsion C；
4) above-mentioned solution C, is transferred to hydrothermal reaction kettle, the clean stainless (steel) wire of pre-wash is placed in solution C, into
Row hydro-thermal reaction.It cools down after reaction, stainless (steel) wire is cleaned with deionized water and ethyl alcohol, dry under certain temperature, is obtained stainless
Steel mesh carrying tin oxide nanostructure；
5), above-mentioned stainless (steel) wire carrying tin oxide nanostructure is placed in organic solution, reacts one at a certain temperature
It fixes time, obtains stainless (steel) wire load Coated with Organic Matter tin oxide nano structure；
6), above-mentioned stainless (steel) wire load Coated with Organic Matter tin oxide nano structure is placed in tube furnace, in certain temperature
Lower roasting certain time, calcination atmosphere are argon gas, obtain stainless (steel) wire load carbon coating tin oxide nano structure；
7), above-mentioned carbon stainless steel net load carbon coating tin oxide nano structure is placed in tube furnace, in reducing gas hydrogen
It is made annealing treatment under the atmosphere and predetermined temperature of gas and just obtains final product stainless (steel) wire load carbon covered stannum rice after a certain period of time
Structure.
Claims (6)
1. a kind of preparation of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure, which is characterized in that packet
Include following steps：
Step 1：
0.625g~1.808g sodium hydroxides will be proportionally dissolved in 40mL deionized waters and obtain solution A；
Step 2：
Under magnetic stirring, stannic chloride is added into above-mentioned solution A and obtains solution B, the mass ratio of sodium hydroxide and stannic chloride is 2:1
~4:1；
Step 3：
Under magnetic stirring, ammonium fluoride is added into above-mentioned solution B and obtains solution or emulsion C, the matter of sodium hydroxide and ammonium fluoride
Amount is than being 12:1~36:1；
Step 4：
Above-mentioned solution C is transferred to hydrothermal reaction kettle, the clean stainless (steel) wire of pre-wash is placed in solution C, carries out hydro-thermal
Reaction, cools down after reaction, and stainless (steel) wire is cleaned with deionized water and ethyl alcohol, dry under certain temperature, and it is negative to obtain stainless (steel) wire
Carry tin oxide nano structure；
Step 5：
Above-mentioned stainless (steel) wire carrying tin oxide nanostructure is placed in organic solution, reacts certain time at a certain temperature,
It obtains stainless (steel) wire and loads Coated with Organic Matter tin oxide nano structure；
Step 6：
Above-mentioned stainless (steel) wire load Coated with Organic Matter tin oxide nano structure is placed in tube furnace, roasts one at a certain temperature
It fixes time, calcination atmosphere is argon gas, obtains stainless (steel) wire load carbon coating tin oxide nano structure；
Step 7：
Above-mentioned carbon stainless steel net load carbon coating tin oxide nano structure is placed in tube furnace, in the atmosphere of reducing gas hydrogen
Final product stainless (steel) wire load carbon covered stannum rice structure is just obtained after a certain period of time with being made annealing treatment under predetermined temperature.
2. a kind of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure according to claim 1
Prepare, which is characterized in that in the step 4, hydrothermal temperature be 160~200 DEG C, the reaction time be 0.5~for 24 hours.
3. a kind of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure according to claim 1
It prepares, which is characterized in that in the step 5, organic carbon source is glucose, dopamine and beta-cyclodextrin etc., and reaction temperature exists
160 DEG C~200 DEG C, 4 hours.
4. a kind of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure according to claim 1
It prepares, which is characterized in that in the step 6, annealing temperature is 600 DEG C~750 DEG C, and annealing time is 1~4h, the stream of argon gas
Speed is 10~100sccm.
5. a kind of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure according to claim 1
It prepares, which is characterized in that in the step 7, annealing temperature is 600~750 DEG C, and annealing time is 1~4h, the flow velocity of hydrogen
For 300~400sccm.
6. a kind of application of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure, which is characterized in that will
Stainless (steel) wire load carbon covered stannum rice structural material is washed into a diameter of 8mm disks as active material electrode, and sodium is used as to electricity
Pole, electrolyte are the solution of the ethylene carbonate and carbonic acid dioctyl phthalate of 1M sodium hexafluoro phosphates, are by volume 1：1, polypropylene is micro-
Pore membrane is battery diaphragm, is assembled into button cell；By assembled button cell stand 12 hours after, LANDCT2100A into
Row electrochemical property test, test voltage are 0.01V~2.6V, current density 50mA/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810128510.5A CN108417780A (en) | 2018-02-08 | 2018-02-08 | A kind of preparation and its application of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810128510.5A CN108417780A (en) | 2018-02-08 | 2018-02-08 | A kind of preparation and its application of anode material of lithium-ion battery stainless (steel) wire load carbon covered stannum rice structure |
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| CN108417780A true CN108417780A (en) | 2018-08-17 |
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| CN (1) | CN108417780A (en) |
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Application publication date: 20180817 |