CN106711409B - A kind of preparation method of stannic oxide load type carbon nano-bar material - Google Patents
A kind of preparation method of stannic oxide load type carbon nano-bar material Download PDFInfo
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- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
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- 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
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Abstract
The invention discloses a kind of methods of stannic oxide load type carbon nano-bar material, using cellulosic raw material as substrate, cellulose is handled with acid catalyzed process, remove the amorphous region in cellulose and impurity component, extract Cellulose nanocrystal suspension, chemical load is carried out to Cellulose nanocrystal with stannic chloride and prepares stanniferous Cellulose nanocrystal, then after high-temperature oxydation-charing process, preparing diameter is 10-30 nm, length is 150-350 nm, has the stannic oxide load type carbon nano-bar material compared with big L/D ratio.The present invention is effectively utilized biological material cellulose, have the characteristics that raw material sources are wide, renewable, pollution-free, the carbon nano rod has size advantage not available for superior electric conductivity and previous carbon material simultaneously, can alleviate volume change, the cycle performance of improvement battery has good effect.
Description
Technical field
The invention belongs to field of lithium ion battery cathode material preparation, receive especially with regard to a kind of stannic oxide load type carbon
The preparation method of rice bar material.
Background technique
With the development of society, environmental pollution and the challenge of energy crisis are increasingly serious, green energy resource becomes countries in the world
Research and development focus.A kind of rechargable power supplies of the lithium ion battery as Novel clean have light weight, pollute small, operating voltage
It is high, energy resource density is big, the advantages that having extended cycle life, wide application prospect, quilt are illustrated in national defence, electric vehicle and electronic field
It is described as the ideal source of 21 century.
In lithium ion battery, negative electrode material be influence battery capacity service life an important factor for one of.Current quotient
Product lithium ion battery mainly uses graphite or modified graphite as negative electrode material, has good cycle performance and forthright again
Can, but its theoretical specific capacity is only 372mAh/g, it is difficult to it is widely used in the field that the high-energy densities such as electric car require.
In order to improve the specific capacity of battery, the graphite alternative materials that high capacity can be kept under low potential need to be found.In recent years, silicon closes
Gold, tin alloy and SnO2、TiO2、Fe2O3、Co3O4、MnO2、MoO3Equal metal oxides become research hotspot both domestic and external.Its
In, the specific capacity high (theoretical specific capacity 782mAh) of stannic oxide negative electrode material, embedding lithium potential is low, energy density is high, safety
The advantages that performance is good, resourceful, at low cost has very big application potential.But titanium dioxide lithium exists in charge and discharge process
Serious bulk effect, the insertion repeatedly and abjection of lithium ion easily cause dusting and agglomeration during circulation, lead to material
Irreversible capacity is big for the first time, cyclical stability is poor, and repeatedly after circulation, electrode is gradually destroyed.How body is effectively relieved
Product effect and powder phenomenon-tion, the cyclical stability for improving electrode have become the key of current research stannic oxide negative electrode material.
Researcher is mainly solved the above problems by preparing nanostructured tin dioxide and building composite material at present.
104868109 A of CN discloses the side that a kind of porous carbon load stannic oxide prepares lithium ion battery negative material
Method.The high dispersive compound of this method copper-tin alloy and carbon first, then copper is removed selectively with nitric acid, tin is oxidized into dioxy
Change tin and be stored in the form of nanosizing in porous carbon duct, has obtained being still higher than after 50 weeks when current density is 100mA/g
900mAh/g, current density stablize the high-capacity cathode material for being higher than 300mAh/g when being 1A/g.Wang Wenfeng (Wang Wenfeng
(2015) stannic oxide-C-base composte material applies Shanghai University Master's thesis in lithium ion battery), Jiang Yinzhu etc.
(Jiang Yinzhu, Xu Yue, the preparation of tight (2011) stannic oxide-graphene nano composite lithium ion battery cathode and performance table
Sign .2011 Chinese material Conference Papers abstract collection) stannic oxide is carried on graphene oxide in different ways, it makes respectively
It is the cathode of lithium battery of 891.7mAh/g, 719mAh/g for cycle charging capacity.Similar, high length-diameter ratio nano-carbon material is such as
Carbon nanotube, carbon nano-fiber etc. are also used for load stannic oxide.Ding etc. report the carbon nanotube of sandwich structure a kind of/
Stannic oxide/carbon composite, stannic oxide content reaches 80% (mass fraction), reversible after 60 charge and discharge cycles
Capacity still reaches 505mAh/g (Ding S, Chen J S, Lou X W.CNTs@SnO2@Carbon Coaxial Nanocables
with High Mass Fraction of SnO 2,for Improved Lithium Storage[J].Chemistry-An
Asian Journal,2011,6(9):2278–2281)。
Stannic oxide has biggish application potential as the negative electrode material of lithium ion battery, by the structure for optimizing material
And composition, especially Nanostructure fabrication stannic oxide and with carbon materials or other materials such as amorphous carbon, carbon nanotube, graphene
Expect compound, not only contributes to the area and reaction site that increase electrode/electrolyte interface, improve electrode capacity, and can have
Internal stress caused by buffer volumes change is imitated, irreversible capacity decaying is reduced, improves cycle performance, this will be the following high-performance lithium
The development and commercialization of ion battery lay the foundation.But the storage lithium process of stannic oxide is the insertion repeatedly by lithium ion
With take off realization, be based on the process the characteristics of and mechanism, the volume change and irreversible capacity loss of stannic oxide electrode
It is difficult to avoid completely.Although nanosizing in previous research in relation to stannic oxide negative electrode material and its with various carbon-based or other materials
The Composite of material has numerous studies report, and has certain effect, but two to alleviating volume change, improving cycle performance
The tin oxide problem that irreversible capacity is big for the first time, cyclical stability is poorer than carbon material is solved there is no basic, this is also big at present
The common problem that part non-carbons negative material is faced.In order to reduce the solution of this problem as far as possible, need to carbon-based load
Body carries out fining size Control, so that the volume change of electrode is integrally controllable, while guaranteeing the steady of carrier conductivity energy
Qualitative, the work of this respect need researcher and further studies and explore.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method of stannic oxide load type carbon nano-bar material, the present invention has
Biological material cellulose is utilized in effect, has the characteristics that raw material sources are wide, renewable, pollution-free, while the carbon nano rod has
Size advantage not available for superior electric conductivity and previous carbon material, the cyclicity that volume change can be alleviated, improve battery
There can be good effect.
In order to achieve the above objectives, the technical scheme is that a kind of system of stannic oxide load type carbon nano-bar material
Preparation Method, includes the following steps: using cellulosic raw material as substrate, with acid catalyzed process to cellulosic raw material at
Reason removes the amorphous region in cellulosic raw material and impurity component, Cellulose nanocrystal suspension is extracted, with stannic chloride to fibre
The nanocrystalline progress chemical load of dimension element prepares stanniferous Cellulose nanocrystal, and then after high-temperature oxydation-charing process, preparation is straight
Diameter is 10-30nm, and length is 150-350nm, has the stannic oxide load type carbon nano-bar material compared with big L/D ratio.
The extracting method of the Cellulose nanocrystal suspension are as follows: being placed in cellulose to prepare in hydrochloric acid solution becomes fibre
The suspension for tieing up plain raw material, is transferred to water heating kettle for suspension and reacts, after reaction, by reaction solution stratification,
It removes supernatant liquor and obtains Cellulose nanocrystal suspension；Wherein, the concentration of hydrochloric acid solution is 5mol/L；Cellulose former material
Expect that the solid content in hydrochloric acid is 0.005-0.05g/mL；It is 100-120 that suspension liquid, which ties up to the reaction temperature in water heating kettle,
DEG C, the reaction time is 1-5h.
The cellulosic raw material uses one of cellulose crystallite, cotton, paper scrap, sawdust, bacteria cellulose.
Described carries out the operation side that chemical load prepares stanniferous Cellulose nanocrystal to Cellulose nanocrystal with stannic chloride
Method are as follows: ethyl alcohol and deionized water will be added in the Cellulose nanocrystal suspension being prepared, wherein suspension/ethyl alcohol/go from
Volume ratio (v/v)=1:(1~3 of sub- water): (1~2) is cooled to 35~45 DEG C, and the stannic chloride of 10~20wt%, stirring is added
Appropriate ammonium hydroxide is instilled after dissolution and adjusts pH to neutrality, is reacted after continuing 2h, reactant is collected by centrifugation, with deionized water and alcohol
Washing obtains stanniferous Cellulose nanocrystal after 80 DEG C of vacuum drying.
The step of stanniferous Cellulose nanocrystal prepares stannic oxide load carbon nano rod through oxidation-charing are as follows: will
The stanniferous Cellulose nanocrystal being prepared is placed in CVD tube furnace under air atmosphere, first progress high temperature oxidation process, then
It is passed through protective gas, the carbon nano rod of stannic oxide load is prepared at high temperature；The wherein high temperature oxidation process
When temperature be 200-350 DEG C, by 1-3h high-temperature process；The protective gas uses nitrogen or argon gas；Described
Protective gas be passed through after using being gradually warming up to 1000-1500 DEG C, it is rodlike straight that shape is obtained after 1-3h charing
Diameter is 10-30nm, and length is the stannic oxide load type carbon nano-bar material of 150-350nm.
The beneficial effects of the present invention are: a kind of preparation of stannic oxide load type carbon nano-bar material proposed by the invention
Method is effectively utilized biological material cellulose, has the characteristics that raw material sources are wide, renewable, pollution-free；By regulating and controlling fiber
Raw material, acid concentration, hydrolysis temperature, hydrolysis time factor in the nanocrystalline preparation process of element realize Cellulose nanocrystal and most
The Modulatory character of whole carbon nano rod size；The stannic oxide load type carbon nano-bar material has in negative electrode of lithium ion battery field
Volume change is integrally controllable, the good feature of carrier conductivity stabilizability, has traditional carbon fibres, graphene, carbon nanotube etc.
Not available size advantage.
Specific embodiment
Embodiment 1
A kind of preparation method of stannic oxide load type carbon nano-bar material of the present embodiment, includes the following steps: first
In the hydrochloric acid solution that concentration is 5mol/L sufficiently by the microcrystalline cellulose (product number 68005761, traditional Chinese medicines reagent) of commercialization
Infiltration, is transferred in water heating kettle, the solid content of microcrystalline cellulose remains 0.008g/mL.Reaction carries out 5h at 100 DEG C, to
After reaction kettle natural cooling, diluted with deionized water；Supernatant liquor is removed after stratification, it is repeated multiple times until dispersion liquid
Form stable suspension.Then be added into suspension ethyl alcohol and deionized water be formulated as mixed solution (suspension/ethyl alcohol/
Deionized water (v/v)=1:2:2), 35 DEG C are cooled to, the stannic chloride of 10wt% is added, appropriate ammonium hydroxide tune is instilled after stirring and dissolving
PH is saved to neutrality, reacts after continuing 2h, reactant is collected by centrifugation, with deionized water and ethanol wash, be dried in vacuo through 80 DEG C
After obtain stanniferous Cellulose nanocrystal.
Then stanniferous Cellulose nanocrystal is placed in CVD tube furnace under air atmosphere, is carried out at 200 DEG C of oxidations of high temperature
Reason, then passes to protective gas nitrogen, is gradually warming up to 1000 DEG C, stannic oxide load type carbon is obtained after 3h is carbonized and is received
Rice bar material.
It is tested through field emission scanning electron microscope, stannic oxide load type carbon nano-bar material average diameter manufactured in the present embodiment
For 30nm, average length 350nm.
A kind of preparation method for stannic oxide load type carbon nano-bar material that the present embodiment is proposed, is effectively utilized life
Material cellulose has the characteristics that raw material sources are wide, renewable, pollution-free；It was prepared by regulating and controlling Cellulose nanocrystal
The factors such as raw material, acid concentration, hydrolysis temperature, hydrolysis time in journey realize Cellulose nanocrystal and final carbon nano rod ruler
Very little Modulatory character；The stannic oxide load type carbon nano-bar material has volume change whole in negative electrode of lithium ion battery field
Controllably, the good feature of carrier conductivity stabilizability, with ruler not available for traditional carbon fibres, graphene, carbon nanotube etc.
Very little advantage.
Embodiment 2
A kind of preparation method of stannic oxide load type carbon nano-bar material of the present embodiment, includes the following steps: first
In the hydrochloric acid solution that concentration is 5mol/L sufficiently by the microcrystalline cellulose (product number 68005761, traditional Chinese medicines reagent) of commercialization
Infiltration, is transferred in water heating kettle, the solid content of microcrystalline cellulose remains 0.05g/mL.Reaction carries out 2h at 100 DEG C, to anti-
After answering kettle natural cooling, diluted with deionized water；Supernatant liquor is removed after stratification, it is repeated multiple times until dispersion liquid shape
At stable suspension.Then ethyl alcohol and deionized water are added into suspension to be formulated as mixed solution (suspension/ethyl alcohol/is gone
Ionized water (v/v)=1:3:2), 45 DEG C are cooled to, the stannic chloride of 20wt% is added, appropriate ammonium hydroxide is instilled after stirring and dissolving and is adjusted
PH is reacted after continuing 2h, reactant is collected by centrifugation to neutrality, with deionized water and ethanol wash, after 80 DEG C of vacuum drying
Obtain stanniferous Cellulose nanocrystal.
Then stanniferous Cellulose nanocrystal is placed in CVD tube furnace under air atmosphere, is carried out at 350 DEG C of oxidations of high temperature
Reason, then passes to protective gas argon gas, is gradually warming up to 1500 DEG C, stannic oxide load type carbon is obtained after 1h is carbonized and is received
Rice bar material.
It is tested through field emission scanning electron microscope, stannic oxide load type carbon nano-bar material average diameter manufactured in the present embodiment
For 10nm, average length 150nm.
A kind of preparation method for stannic oxide load type carbon nano-bar material that the present embodiment is proposed, is effectively utilized life
Material cellulose has the characteristics that raw material sources are wide, renewable, pollution-free；By regulating and controlling Cellulose nanocrystal preparation process
Middle raw material, acid concentration, hydrolysis temperature, hydrolysis time factor realize Cellulose nanocrystal and final carbon nano rod size
Modulatory character；The stannic oxide load type carbon nano-bar material in negative electrode of lithium ion battery field there is volume change integrally may be used
Control, the good feature of carrier conductivity stabilizability, with size not available for traditional carbon fibres, graphene, carbon nanotube etc.
Advantage.
Embodiment 3
A kind of preparation method of stannic oxide load type carbon nano-bar material of the present embodiment, includes the following steps: first
In the hydrochloric acid solution that concentration is 5mol/L sufficiently by the microcrystalline cellulose (product number 68005761, traditional Chinese medicines reagent) of commercialization
Infiltration, is transferred in water heating kettle, the solid content of microcrystalline cellulose remains 0.02g/mL.Reaction carries out 4h at 110 DEG C, to anti-
After answering kettle natural cooling, diluted with deionized water；Supernatant liquor is removed after stratification, it is repeated multiple times until dispersion liquid shape
At stable suspension.Then ethyl alcohol and deionized water are added into suspension to be formulated as mixed solution (suspension/ethyl alcohol/is gone
Ionized water (v/v)=1:2:1), 35 DEG C are cooled to, the stannic chloride of 20wt% is added, appropriate ammonium hydroxide is instilled after stirring and dissolving and is adjusted
PH is reacted after continuing 2h, reactant is collected by centrifugation to neutrality, with deionized water and ethanol wash, after 80 DEG C of vacuum drying
Obtain stanniferous Cellulose nanocrystal.
Then stanniferous Cellulose nanocrystal is placed in CVD tube furnace under air atmosphere, is carried out at 250 DEG C of oxidations of high temperature
Reason, then passes to protective gas nitrogen, is gradually warming up to 1200 DEG C, stannic oxide load type carbon is obtained after 3h is carbonized and is received
Rice bar material.
It is tested through field emission scanning electron microscope, stannic oxide load type carbon nano-bar material average diameter manufactured in the present embodiment
For 20nm, average length 216nm.
A kind of preparation method for stannic oxide load type carbon nano-bar material that the present embodiment is proposed, is effectively utilized life
Material cellulose has the characteristics that raw material sources are wide, renewable, pollution-free；By regulating and controlling Cellulose nanocrystal preparation process
Middle raw material, acid concentration, hydrolysis temperature, hydrolysis time factor realize Cellulose nanocrystal and final carbon nano rod size
Modulatory character；The stannic oxide load type carbon nano-bar material in negative electrode of lithium ion battery field there is volume change integrally may be used
Control, the good feature of carrier conductivity stabilizability, with size not available for traditional carbon fibres, graphene, carbon nanotube etc.
Advantage.
Embodiment 4
A kind of preparation method of stannic oxide load type carbon nano-bar material of the present embodiment, includes the following steps: first
The bacteria cellulose (hundred million moral Food Co., Ltd of Hainan, food-grade) of commercialization is filled in the hydrochloric acid solution that concentration is 5mol/L
Sub-dip profit, is transferred in water heating kettle, the solid content of microcrystalline cellulose remains 0.005g/mL.Reaction carries out 1h at 120 DEG C,
After reaction kettle natural cooling, diluted with deionized water；Supernatant liquor is removed after stratification, it is repeated multiple times until dispersion
Liquid forms stable suspension.Then ethyl alcohol is added into suspension and deionized water is formulated as mixed solution (suspension/second
Alcohol/deionized water (v/v)=1:1.5:1), 40 DEG C are cooled to, the stannic chloride of 20wt% is added, instills appropriate amounts of ammonia after stirring and dissolving
Water adjusts pH to neutrality, reacts after continuing 2h, reactant is collected by centrifugation, with deionized water and ethanol wash, through 80 DEG C of vacuum
Stanniferous Cellulose nanocrystal is obtained after drying.
Then stanniferous Cellulose nanocrystal is placed in CVD tube furnace under air atmosphere, is carried out at 260 DEG C of oxidations of high temperature
Reason, then passes to protective gas argon gas, is gradually warming up to 1180 DEG C, stannic oxide load type carbon is obtained after 2h is carbonized and is received
Rice bar material.
It is tested through field emission scanning electron microscope, stannic oxide load type carbon nano-bar material average diameter manufactured in the present embodiment
For 15nm, average length 250nm.
A kind of preparation method for stannic oxide load type carbon nano-bar material that the present embodiment is proposed, is effectively utilized life
Material cellulose has the characteristics that raw material sources are wide, renewable, pollution-free；By regulating and controlling Cellulose nanocrystal preparation process
Middle raw material, acid concentration, hydrolysis temperature, hydrolysis time factor realize Cellulose nanocrystal and final carbon nano rod size
Modulatory character；The stannic oxide load type carbon nano-bar material in negative electrode of lithium ion battery field there is volume change integrally may be used
Control, the good feature of carrier conductivity stabilizability, with size not available for traditional carbon fibres, graphene, carbon nanotube etc.
Advantage.
Embodiment 5
A kind of preparation method of stannic oxide load type carbon nano-bar material of the present embodiment, includes the following steps: first
The bacteria cellulose (hundred million moral Food Co., Ltd of Hainan, food-grade) of commercialization is filled in the hydrochloric acid solution that concentration is 5mol/L
Sub-dip profit, is transferred in water heating kettle, the solid content of microcrystalline cellulose remains 0.01g/mL.Reaction carries out 3h at 105 DEG C, to
After reaction kettle natural cooling, diluted with deionized water；Supernatant liquor is removed after stratification, it is repeated multiple times until dispersion liquid
Form stable suspension.Then be added into suspension ethyl alcohol and deionized water be formulated as mixed solution (suspension/ethyl alcohol/
Deionized water (v/v)=1:1:2), 38 DEG C are cooled to, the stannic chloride of 18wt% is added, appropriate ammonium hydroxide tune is instilled after stirring and dissolving
PH is saved to neutrality, reacts after continuing 2h, reactant is collected by centrifugation, with deionized water and ethanol wash, be dried in vacuo through 80 DEG C
After obtain stanniferous Cellulose nanocrystal.
Then stanniferous Cellulose nanocrystal is placed in CVD tube furnace under air atmosphere, is carried out at 240 DEG C of oxidations of high temperature
Reason, then passes to protective gas argon gas, is gradually warming up to 1300 DEG C, stannic oxide load type carbon is obtained after 1.5h is carbonized
Nano-bar material.
It is tested through field emission scanning electron microscope, stannic oxide load type carbon nano-bar material average diameter manufactured in the present embodiment
For 26nm, average length 310nm.
The method for the carbon nano rod load stannic oxide that the present embodiment is proposed, is effectively utilized biological material fiber
Element has the characteristics that raw material sources are wide, renewable, pollution-free；It is dense by raw material, acid in regulation Cellulose nanocrystal preparation process
Degree, hydrolysis temperature, hydrolysis time factor realize the Modulatory character of Cellulose nanocrystal and final carbon nano rod size；It should
Stannic oxide load type carbon nano-bar material has volume change integrally controllable in negative electrode of lithium ion battery field, carrier conductivity
The good feature of stabilizability, with size advantage not available for traditional carbon fibres, graphene, carbon nanotube etc..
Claims (3)
1. a kind of preparation method of stannic oxide load type carbon nano-bar material, which comprises the steps of: using fine
Plain raw material are tieed up as substrate, cellulosic raw material is handled with acid catalyzed process, the nothing removed in cellulosic raw material is fixed
Shape area and impurity component extract Cellulose nanocrystal suspension, carry out chemical load preparation to Cellulose nanocrystal with stannic chloride
Stanniferous Cellulose nanocrystal, then after high-temperature oxydation-charing process, preparing diameter is 10-30nm, and length is 150-
350nm has the stannic oxide load type carbon nano-bar material compared with big L/D ratio；The Cellulose nanocrystal suspension mentions
Take method are as follows: cellulosic raw material is placed in and prepares the suspension for becoming cellulosic raw material in hydrochloric acid solution, suspension is turned
It moves to water heating kettle to be reacted, after reaction, by reaction solution stratification, removing supernatant liquor, to obtain Cellulose nanocrystal outstanding
Supernatant liquid；Wherein, the concentration of hydrochloric acid solution is 5mol/L；Solid content of the cellulosic raw material in hydrochloric acid is 0.005-
0.05g/mL；It is 100-120 DEG C that suspension liquid, which ties up to the reaction temperature in water heating kettle, and the reaction time is 1-5h；It is described with
Stannic chloride carries out the operating method that chemical load prepares stanniferous Cellulose nanocrystal to Cellulose nanocrystal are as follows: by what is be prepared
Ethyl alcohol is added in Cellulose nanocrystal suspension and deionized water is formulated as mixed solution, wherein suspension/ethyl alcohol/deionized water
Volume ratio (v/v)=1:(1~3): (1~2), after being cooled to 35-45 DEG C, be added 10~20wt% stannic chloride, stir it is molten
Ammonium hydroxide is instilled after solution and adjusts pH to neutrality, reacts after continuing 2h, reactant is collected by centrifugation, with deionized water and ethanol wash,
Stanniferous Cellulose nanocrystal is obtained after 80 DEG C of vacuum drying.
2. a kind of preparation method of stannic oxide load type carbon nano-bar material as described in claim 1, which is characterized in that institute
The cellulosic raw material stated uses one of cellulose crystallite, cotton, paper scrap, sawdust, bacteria cellulose.
3. a kind of preparation method of stannic oxide load type carbon nano-bar material as described in claim 1, which is characterized in that institute
The step of stanniferous Cellulose nanocrystal stated prepares stannic oxide load carbon nano rod through oxidation-charing are as follows: by what is be prepared
Stanniferous Cellulose nanocrystal is placed in CVD tube furnace under air atmosphere, first progress high temperature oxidation process, then passes to protectiveness
The carbon nano rod of stannic oxide load is prepared in gas at high temperature；Wherein the temperature when high temperature oxidation process is
200-350 DEG C, by 1-3h high-temperature process；The protective gas uses nitrogen or argon gas；The protective gas
Using being gradually warming up to 1000-1500 DEG C after being passed through, it is 10-that after 1-3h charing to obtain shape, which be rodlike diameter,
30nm, length are the stannic oxide load type carbon nano-bar material of 150-350nm.
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| CN110078177B (en) * | 2019-04-19 | 2022-01-28 | 广西民族大学 | SnO (stannic oxide)2-GAC particles, method for the production thereof and use thereof |
| CN110136983B (en) * | 2019-05-13 | 2021-01-26 | 东南大学 | Tin oxynitride nanorod array/porous active carbon fiber integrated material and preparation method and electrochemical energy storage application thereof |
| CN112018360B (en) * | 2020-08-26 | 2022-02-18 | 合肥国轩高科动力能源有限公司 | Lithium ion battery cathode material, preparation method thereof and lithium ion battery |
| CN112768655B (en) * | 2021-01-11 | 2022-06-28 | 上海应用技术大学 | Preparation method of tin dioxide @ oxidized bacterial cellulose/reduced graphene oxide electrode material |
| CN115465883A (en) * | 2022-06-22 | 2022-12-13 | 万向一二三股份公司 | Preparation method of tin oxide/carbon fiber composite negative electrode material |
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| Carbon nanorods derived from natural based nanocrystalline cellulose for highly efficient capacitive deionization;Yong Liu 等;《Journal of Materials Chemistry A》;20141028;第2卷;第20966-20972页 |
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