CN108807957A - Anode material of lithium-ion battery lacks layer rhenium disulfide nanometer sheet/hollow carbon sphere and preparation method thereof - Google Patents
Anode material of lithium-ion battery lacks layer rhenium disulfide nanometer sheet/hollow carbon sphere and preparation method thereof Download PDFInfo
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- CN108807957A CN108807957A CN201811009934.6A CN201811009934A CN108807957A CN 108807957 A CN108807957 A CN 108807957A CN 201811009934 A CN201811009934 A CN 201811009934A CN 108807957 A CN108807957 A CN 108807957A
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- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
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- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
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- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/581—Chalcogenides or intercalation compounds thereof
- H01M4/5815—Sulfides
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- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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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
Abstract
The invention discloses a kind of anode material of lithium-ion batteries to lack layer rhenium disulfide nanometer sheet/hollow carbon sphere and preparation method thereof.The negative material be by by rhenium disulfide nanometer sheet be attached to inside and outside porous hollow carbon sphere carbon hull shape at, it is sulphur source using ammonium perrhenate as presoma, thioacetamide, hydrazine hydrate is reducing agent and porous hollow carbon ball is rhenium disulfide Growh framework, the obtained negative material.Negative material prepared by the present invention, using the hollow porous Nano carbon balls of uniform particle diameter as skeleton, rhenium disulfide lamellar structure is uniformly scattered on carbon shell, the use of porous hollow carbon ball, the growth number of plies of rhenium disulfide nanometer sheet is limited between 2~7, this few layer rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite, not only there is more embedding sodium active sites, high electric conductivity, internal cavity can be with buffer volumes effect, it prevents lamella from falling off and maintains the stabilization of structure, and rhenium disulfide nanometer sheet is without apparent agglomeration.
Description
Technical field
The invention belongs to sodium-ion battery field of material synthesis technology, and in particular to a kind of few layer ReS2Nanometer sheet/hollow
Carbon ball composite material (ReS2/ C) and preparation method thereof.
Background technology
The original research of sodium-ion battery is almost synchronized with lithium ion battery.As lithium ion battery is in the big of electronic equipment
The potential demand of scale useization and electric vehicle and large scale electric network energy storage, worry of the people to elemental lithium reserves in the earth's crust
It is being stepped up.It is several recently in view of the abundant reserves of sodium element in sodium ion and the similar chemical property of lithium ion and the earth's crust
Year rises once again about the research of sodium-ion battery.For opposite lithium ion battery, sodium-ion battery has bright in the following areas
Aobvious advantage：1, reserves of the sodium element in the earth's crust are more than 1000 times of elemental lithium, and widely distributed, and cost of winning is cheap；2, with
Lithium ion battery is compared, and the half-cell potential of sodium-ion battery is higher by 0.3~0.4V, and the range of choice of electrolyte is wider；3, sodium
Battery has metastable chemical property, use safer.However, that there is also some is congenital bad simultaneously for sodium-ion battery
Gesture：1, sodium element relative atomic mass is much larger than elemental lithium（23.0 vs 6.9）, so as to cause the Theoretical Mass of sodium-ion battery
Specific capacity is less than lithium ion battery；2, sodium ion radius is much larger than lithium ion radius, to be embedded in finding suitable sodium ion
Material provides more difficulties, and then causes the theoretical volumetric capacity of sodium-ion battery again smaller than lithium ion battery.It closes at present
Rapidly it is in progress in the research of sodium-ion battery.But it is most of still to concentrate on finding suitable sodium ion insert material, study sodium
Ion is embedded in mechanism, promotes the various aspects such as specific capacity, the cycle performance of battery.
Carbon material has abnormal abundant pattern, structure and pore-size distribution etc., these have quite sodium ion storage performance
Important influence.By the end of currently, the electrochemistry storage sodium performance that various carbon materials have been extensively studied in people is arrived from zero dimension carbon dots
One-dimensional carbon nanotube, carbon fiber, two-dimentional graphite is dilute, then arrives the three-dimensional carbon material of various patterns.Though its specific capacity is compared with graphite
It improves, but is generally still below 300 mA h g-1.Although disastrously miscellaneous by element, complex method can be certain to carbon material modification
Its specific capacity is promoted in degree, but result is not especially considerable.Layered titanic acid salt compound is the more sodium of another research
Ion battery embedded type negative material.Due to lower embedding sodium current potential, and when sodium ion is embedded in, almost zero strain goes out
It is existing, thus attracted the concern of people.But this types of material also faces a series of problems：Conductivity is very poor and theoretical specific capacity
It is low.Major part is the experimental results showed that its specific capacity is less than 200 mA h g at present-1.Most study is various metal oxidations at present
Object and sulfide.Such as the MoS of self-supporting is synthesized using the mode of acid stripping2Graphene paper, assembling steel ion battery hair
It is existing, compare pure MoS2, the cycle characteristics of this composite material has large increase.Different metal oxides and sulfide theory ratio
Capacity comparison, it can be seen that based on similar reaction mechanism, since the atomic weight of element sulphur is more than oxygen, to same mistake
Metal is crossed, oxide theoretical specific capacity is generally higher than corresponding sulfide.But all there is serious volume expansion in two kinds of materials
Effect.
Invention content
The purpose of the present invention is to propose to a kind of anode material of lithium-ion battery lack layer rhenium disulfide nanometer sheet/hollow carbon sphere and
Preparation method.
Realizing the technical solution of the object of the invention is：
A kind of anode material of lithium-ion battery, the negative material are porous hollow by the way that rhenium disulfide nanometer sheet to be attached to
Inside and outside carbon ball carbon hull shape at.
Wherein, 410 ± 5nm of diameter of hollow carbon sphere, 28 ± 2nm of thickness of carbon shell, the rhenium disulfide nanometer sheet number of plies be 2~
Between 7.
The preparation method of above-mentioned anode material of lithium-ion battery, includes the following steps：
Ammonium perrhenate and thioacetamide is soluble in water, and ultrasound is added a certain amount of hydrazine hydrate and is uniformly mixed, and is added hollow
Porous Nano carbon balls ultrasonic disperse is in above-mentioned solution, hydro-thermal reaction, waits for centrifuge washing after reaction, is done after obtaining solid phase
It is dry, by the product after drying under the protection of hydrogen/argon gas atmosphere high-temperature calcination to get few layer of rhenium disulfide nanometer sheet/hollow carbon
Ball nanocomposite (ReS2/C)。
In above-mentioned steps, using ammonium perrhenate as presoma, thioacetamide be sulphur source, hydrazine hydrate is reducing agent and porous air
Heart carbon ball is rhenium disulfide Growh framework, wherein ammonium perrhenate, thioacetamide, hydrazine hydrate and porous hollow carbon ball mass ratio
It is 1: 1 ~ 2: 0.5 ~ 1: 0.6 ~ 1,80 ~ 145 DEG C of hydrothermal temperature in reaction, 1 ~ 5 h of reaction time is forged under hydrogen/argon gas protection
It burns, 400 ~ 800 DEG C of calcination temperature, calcination time is 2 ~ 6 h.
Compared with prior art, it is an advantage of the invention that：
Few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite prepared by the present invention, with the hollow porous of uniform particle diameter
Nano carbon balls are skeleton, and rhenium disulfide lamellar structure is uniformly scattered on carbon shell, and the use of porous hollow carbon ball limits
The growth number of plies of rhenium disulfide nanometer sheet is between 2~7, this few layer rhenium disulfide nanometer sheet/nano combined material of hollow carbon sphere
Not only there is material more embedding sodium active sites, high electric conductivity, internal cavity can prevent lamella with buffer volumes effect
It falls off and maintains the stabilization of structure, and rhenium disulfide nanometer sheet is without apparent agglomeration.
Description of the drawings
Fig. 1 is the transmission electron microscope picture of the hollow porous Nano carbon balls prepared.
Fig. 2 is the few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS for implementing to prepare under the conditions of 22/C)
Transmission electron microscope picture.
Fig. 3 is the few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS for implementing to prepare under the conditions of 22/C)
High power figure after ultra-thin section.
Fig. 4 is the transmission electron microscope for implementing to reduce the quality products therefrom of thioacetamide, hydrazine hydrate and carbon ball under the conditions of 4
Figure.
Fig. 5 is that few layer rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS is prepared under the conditions of implementing 22/ C)
XRD diagram.
Fig. 6 is the few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS for implementing to prepare under the conditions of 22/C)
Long circulating performance map（Current density is 0.4 A g-1）.
Fig. 7 is the few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS for implementing to prepare under the conditions of 22/C)
Different multiplying charge-discharge performance figure.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments with attached drawing pair
The present invention is described in detail.
The present invention has synthesized a kind of few layer rhenium disulfide nanometer using hollow porous Nano carbon balls as template, with the method for hydro-thermal
Piece/hollow carbon sphere nanocomposite.Few layer rhenium disulfide nanometer sheet/hollow carbon sphere (ReS2/ C) show more embedding sodium activity
Site and smaller sodium ion transport resistance and good electric conductivity are conducive to the fast transportation of sodium ion and electronics.Passing through will
The insertion of rhenium disulfide nanometer sheet is grown on the carbon shell of hollow carbon sphere for reducing the accumulation of rhenium disulfide to reduce curing
The number of plies of rhenium, shorten the diffusion path of sodium ion to reduce the Transport resistance of sodium ion and increase embedding sodium active site to
It will be a kind of good method to improve its electro-chemical properties.In addition carbon shell improves the electric conductivity of composite material.Meanwhile being grown in carbon
Rhenium disulfide inside shell can prevent falling off for structure in its charge and discharge process, and internal space can also buffer embedding/removing sodium mistake
Bulk effect in journey is conducive to the stabilization of structure in cyclic process, high rate performance and stable circulation to make material possess
Performance so that active material is effectively protected in high current, long circulating.Therefore, few layer ReS2Nanometer sheet insertion growth is empty
The carbon hull shape of heart carbon ball is at nano-hollow composite material (ReS2/ C) it is a kind of and the sodium ion negative material with application prospect.
One, the preparation of hollow porous Nano carbon balls：
50 mL absolute ethyl alcohols, 5mL deionized waters, 1 mL ammonium hydroxide are added sequentially in beaker and are carried out magnetic agitation, while to
0.4 mL tetraethyl orthosilicates are added in above-mentioned mixed liquor, for a period of time by mixed liquor magnetic agitation, weigh 0.2 g resorcinols
It is added sequentially in above-mentioned mixed solution with 0.2 g formaldehyde is measured, in 30 DEG C of 24 h of magnetic agitation of bath temperature.Wait for reaction knot
Centrifuge washing after beam, obtain it is dry after solid phase, under protection of argon gas by the product after drying, heating rate 2 DEG C/min, 600
Product after high-temperature calcination is then etched 12 by DEG C 5 h of high-temperature calcination under 60 DEG C of water bath conditions with 2 M sodium hydroxide solutions
h.Finally, by the product centrifuge washing after etching, and obtained solid phase is dried to get hollow porous Nano carbon balls.Institute is much
The grain size of hole hollow carbon sphere is 420 nm, and wall thickness is 28 nm.
The reaction time of 30 DEG C of magnetic agitations of bath temperature is 24 h, the hollow porous carbon ball grain prepared with this condition
Diameter is uniform, and stable structure, yield is big, and few layer ReS is prepared to be follow-up2The porous hollow carbon shell of nanometer sheet insertion provides good
Skeleton function.
Two, prepared by negative material：
Embodiment 1：
0.3 g ammonium perrhenates and 0.3 g thioacetamide solids are dissolved in 70 mL deionized waters, ultrasound, while being added 0.15
G hydrazine hydrates are uniformly mixed, and the hollow porous Nano carbon balls ultrasonic disperses of 0.18g are added in above-mentioned solution, 80 DEG C of hydro-thermal reactions
1 h waits for centrifuge washing after reaction, obtains drying after solid phase, by the product after drying under hydrogen/argon gas protection, heating
2 DEG C/min of rate, 400 DEG C of 2 h of high-temperature calcination are to get few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite
(ReS2/C)。
Embodiment 2：
Prepare few layer rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS2/C)
0.3 g ammonium perrhenates and 0.45 g thioacetamide solids are dissolved in 70 mL deionized waters, ultrasound is added simultaneously
0.24 g hydrazine hydrates are uniformly mixed, and the hollow porous Nano carbon balls ultrasonic disperses of 0.24 g are added in above-mentioned solution, 120 DEG C
3 h of hydro-thermal reaction waits for centrifuge washing after reaction, obtains drying after solid phase, and the product after drying is protected in hydrogen/argon gas
Under, heating rate 2 DEG C/min, 600 DEG C of 4 h of high-temperature calcination is nano combined to get few layer of rhenium disulfide nanometer sheet/hollow carbon sphere
Material (ReS2/C)。
Embodiment 3：
Prepare few layer rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS2/C)
0.3 g ammonium perrhenates and 0.6 g thioacetamide solids are dissolved in 70 mL deionized waters, ultrasound, while being added 0.3
G hydrazine hydrates are uniformly mixed, and the hollow porous Nano carbon balls ultrasonic disperses of 0.3 g are added in above-mentioned solution, and 145 DEG C of hydro-thermals are anti-
5 h are answered, wait for centrifuge washing after reaction, obtain drying after solid phase, by the product after drying under hydrogen/argon gas protection, are risen
2 DEG C/min of warm rate, 800 DEG C of 6 h of high-temperature calcination are to get few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite
(ReS2/C)。
Embodiment 4：
0.3 g ammonium perrhenates and 0.15 g thioacetamide solids are dissolved in 70 mL deionized waters, ultrasound is added simultaneously
0.05 g hydrazine hydrates are uniformly mixed, and the hollow porous Nano carbon balls ultrasonic disperses of 0.1 g are added in above-mentioned solution, 145 DEG C of water
5 h of thermal response waits for centrifuge washing after reaction, obtains drying after solid phase, and the product after drying is protected in hydrogen/argon gas
Under, 2 DEG C/min of heating rate, 800 DEG C of 6 h of high-temperature calcination, then the product obtained is that hollow carbon sphere is not supported two substantially
Sulfuration rhenium nanometer sheet.
Three, material property is verified：
Under conditions of embodiment 2, optimal anode material of lithium-ion battery can be obtained and lack layer rhenium disulfide nanometer sheet/hollow carbon
Ball is the material characterization for the embodiment 2 chosen below：
Fig. 1 is the transmission electron microscope picture of the hollow porous Nano carbon balls prepared.From figure：Prepared interiors of products is hollow knot
Structure is that internal silica is etched completely, and cellular is presented in the rough surface of shell, and hollow ball shell is intact and grain size is equal
One, it is uniformly dispersed.The nm of hollow mesoporous Nano carbon balls diameter ~ 410, carbon wall thickness are 30 nm.
Fig. 2 is the few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS prepared2/ C) transmission electron microscope
Figure.From figure：Prepared product is received to grown few layer of rhenium disulfide in the insertion of the carbon shell of hollow porous Nano carbon balls
Rice piece, while the pattern of carbon ball is not destroyed, external carbon ball is uniformly dispersed without apparent agglomeration.
Fig. 3 is few layer rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS2/ C) high score after ultra-thin section
Distinguish transmission electron microscope picture.From figure：The embedded ReS that grown few layer on carbon ball inside and outside shell2Nanometer sheet forms a kind of few layer
Rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS2/C)。
Fig. 4, which is embodiment 4, reduces thioacetamide（0.15 g）, hydrazine hydrate（0.05 g）And carbon ball（0.1 g）Quality
The transmission electron microscope picture of products therefrom.From figure：Reduce the quality of thioacetamide, hydrazine hydrate and carbon ball, hollow mesoporous carbon spheres
On be not supported rhenium disulfide nanometer sheet substantially.
Fig. 5 is few layer rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS2/ C) XRD diagram.
Few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS prepared by the embodiment of the present invention 22/C)
It is assembled into button sodium-ion battery.
Fig. 6 and Fig. 7 is respectively the few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS prepared2/ C)
Chemical property figure, long circulating performance map（0.4 A g of current density-1）With high rate performance figure.
Fig. 6 is electrode material in 0.4 A g-1Constant current density under long circulating performance map, by 1000 circle cycles
Afterwards, few layer rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS2/ C) reversible specific capacity be 209 mA h g-1。
Fig. 7 is the charge-discharge performance figure under different multiplying, by material in 0.2 A g-1、0.4 A g-1、0.8 A g-1、1 A g-1、2 A g-1It discharges under current density, is then returned to 0.2 A g-1It discharges under current density, respectively cycle charge discharge
Electricity 9 encloses, when current density reaches 2 A g-1, specific discharge capacity can still reach 108 mA h g-1.Finally, work as current density
It is returned to 0.2 A g-1Its specific discharge capacity can be restored to initial 352 mA h g again-1, show the high rate performance for having fabulous.
In short, raw material of the present invention is cheap, environmental protection simple for process, yield is big, the characteristics of haveing excellent performance, the few layer of preparation is provided
Rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS2/ C) straightforward procedure, and with large-scale application potentiality.
The few layer of rhenium disulfide nanometer sheet/hollow carbon sphere nanocomposite (ReS2/ C) it can be used as sodium ion battery electrode material
Using.
Claims (9)
1. a kind of anode material of lithium-ion battery, which is characterized in that the negative material is by the way that rhenium disulfide nanometer sheet is attached
Inside and outside porous hollow carbon sphere carbon hull shape at.
2. negative material as described in claim 1, which is characterized in that 410 ± 5nm of diameter of hollow carbon sphere.
3. negative material as described in claim 1, which is characterized in that 28 ± 2nm of thickness of carbon shell.
4. negative material as described in claim 1, which is characterized in that between the rhenium disulfide nanometer sheet number of plies is 2~7.
5. the preparation method of the anode material of lithium-ion battery as described in claim 1-4, which is characterized in that including walking as follows
Suddenly：
Ammonium perrhenate and thioacetamide is soluble in water, hydrazine hydrate is added, ultrasonic mixing is uniform, and hollow porous carbon is added and receives
Rice ball continues ultrasonic disperse, and the mixed liquor carries out hydro-thermal reaction, waits for centrifuge washing after reaction, obtains drying after solid phase,
By the product after drying under the protection of hydrogen/argon gas atmosphere high-temperature calcination to get the negative material.
6. method as claimed in claim 5, which is characterized in that ammonium perrhenate, thioacetamide, hydrazine hydrate and porous hollow carbon
Ball mass ratio is 1: 1 ~ 2: 0.5 ~ 1: 0.6 ~ 1.
7. method as claimed in claim 5, which is characterized in that hydrothermal temperature is 80 ~ 145 DEG C, and the reaction time is 1 ~ 5
h。
8. method as claimed in claim 5, which is characterized in that calcination temperature is 400 ~ 800 DEG C, and calcination time is 2 ~ 6 h.
9. the application of the anode material of lithium-ion battery according to claim 1-4.
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Cited By (8)
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| CN110061204A (en) * | 2019-03-21 | 2019-07-26 | 天津大学 | Two-dimensional honeycomb carbon nanosheet coated 1T' -ReS2Preparation method of sodium ion battery cathode material |
| CN110124691A (en) * | 2019-05-07 | 2019-08-16 | 肇庆市华师大光电产业研究院 | A kind of preparation method of pollen carbon skeleton load growth rhenium disulfide photoelectric material |
| CN110255524A (en) * | 2019-05-09 | 2019-09-20 | 华南师范大学 | A kind of preparation method for the self-supporting porous carbon electrodes loading two-dimensional material |
| CN111048752A (en) * | 2019-11-25 | 2020-04-21 | 珠海冠宇电池有限公司 | Negative electrode material, preparation method thereof and sodium ion battery |
| CN111354935A (en) * | 2020-03-24 | 2020-06-30 | 东华大学 | Defect-rich rhenium sulfide/nitrogen-doped biomass-based carbon fiber composite material and preparation method thereof |
| CN111403707A (en) * | 2020-03-24 | 2020-07-10 | 东华大学 | Rhenium sulfide/nitrogen-doped biomass-based carbon fiber composite material with double-defect structure and preparation method thereof |
| CN112397704A (en) * | 2020-12-11 | 2021-02-23 | 宁波启新精合新能源研究院有限公司 | High specific energy power lithium ion battery |
| CN114122401A (en) * | 2021-11-08 | 2022-03-01 | 惠州锂威新能源科技有限公司 | Negative electrode material, preparation method thereof, negative electrode sheet and secondary battery |
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| CN110061204A (en) * | 2019-03-21 | 2019-07-26 | 天津大学 | Two-dimensional honeycomb carbon nanosheet coated 1T' -ReS2Preparation method of sodium ion battery cathode material |
| CN110061204B (en) * | 2019-03-21 | 2022-03-29 | 天津大学 | Two-dimensional honeycomb carbon nanosheet coated 1T' -ReS2Preparation method of sodium ion battery cathode material |
| CN110124691A (en) * | 2019-05-07 | 2019-08-16 | 肇庆市华师大光电产业研究院 | A kind of preparation method of pollen carbon skeleton load growth rhenium disulfide photoelectric material |
| CN110124691B (en) * | 2019-05-07 | 2022-02-22 | 肇庆市华师大光电产业研究院 | Preparation method of pollen carbon framework supported growth rhenium disulfide photoelectric material |
| CN110255524A (en) * | 2019-05-09 | 2019-09-20 | 华南师范大学 | A kind of preparation method for the self-supporting porous carbon electrodes loading two-dimensional material |
| CN111048752A (en) * | 2019-11-25 | 2020-04-21 | 珠海冠宇电池有限公司 | Negative electrode material, preparation method thereof and sodium ion battery |
| CN111354935A (en) * | 2020-03-24 | 2020-06-30 | 东华大学 | Defect-rich rhenium sulfide/nitrogen-doped biomass-based carbon fiber composite material and preparation method thereof |
| CN111403707A (en) * | 2020-03-24 | 2020-07-10 | 东华大学 | Rhenium sulfide/nitrogen-doped biomass-based carbon fiber composite material with double-defect structure and preparation method thereof |
| CN112397704A (en) * | 2020-12-11 | 2021-02-23 | 宁波启新精合新能源研究院有限公司 | High specific energy power lithium ion battery |
| CN114122401A (en) * | 2021-11-08 | 2022-03-01 | 惠州锂威新能源科技有限公司 | Negative electrode material, preparation method thereof, negative electrode sheet and secondary battery |
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