CN104659360A - Nickel-cobalt oxide electrode material as well as preparation method and applications thereof - Google Patents
Nickel-cobalt oxide electrode material as well as preparation method and applications thereof Download PDFInfo
- Publication number
- CN104659360A CN104659360A CN201510122607.1A CN201510122607A CN104659360A CN 104659360 A CN104659360 A CN 104659360A CN 201510122607 A CN201510122607 A CN 201510122607A CN 104659360 A CN104659360 A CN 104659360A
- Authority
- CN
- China
- Prior art keywords
- electrode material
- oxide electrode
- nickel cobalt
- preparation
- cobalt oxygen
- 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
-
- 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 nickel-cobalt oxide electrode material as well as a preparation method and applications thereof. The nickel-cobalt oxide electrode material is NiCo2O4 oxide prepared by adopting a hydrothermal method. The method concretely comprises the following steps: adding nickel nitrate (Ni(NO3)2.6H2O) and cobalt nitrate (Co(NO3)2.6H2O) into distilled water and fully mixing, adding urea and methanol to provide hydroxyl groups, and adding PVP as a complexing agent, and reacting in a reaction kettle to obtain NiCo2O4 oxide. Different material shapes can be obtained by adopting different reaction parameters, so that different lithium ion battery performances can be realized. The method has the advantages of being simple in technology, wide in the sources of raw materials, capable of performing large-scale production, and the like. The first discharge capacity of the lithium ion battery cathode material prepared from the material can achieve 2000mAh/g, the capacity has no obvious change after being circulated for 20 times, and the charging and discharging performances are excellent. By adopting the lithium ion battery prepared, the capacity is high, the cyclic performance is good and the lithium ion battery can be used for industrial production.
Description
Technical field
The invention belongs to technical field of lithium ion, be specifically related to a kind of nickel cobalt oxygen oxide electrode material and its preparation method and application.
Background technology
Lithium ion battery is as a kind of New Green Battery, have that voltage is high, specific energy is high, discharge and recharge life-span length, memory-less effect, environmental pollution are little, the advantage such as quick charge, self-discharge rate are low, be widely used in the various electricity consumption facility in living and utensil, as portable small-sized electrical equipment such as notebook computer, cell phone, digital cameras.At present, to lithium ion battery at large-sized power battery (as batteries of electric automobile, battery of electric bicycle etc.) application study of aspect more and more comes into one's own, and research purpose is mainly to improve security performance, improve energy density and the adaptive capacity (microthermal climate as winter) to adverse circumstances.
The main composition material of lithium ion battery has: electrolyte, isolated material, positive electrode and negative material etc.Wherein negative material occupies larger proportion, and its performance directly affects the performance of lithium ion battery, and its cost also directly determines the cost height of battery.The effect of lithium ion battery negative material is as storage lithium main body, realizes the embedding of lithium ion and deviate from charge and discharge process.From the development of lithium ion battery, the update of research to lithium ion battery of negative material plays decisive role.The lithium ion battery negative material mainly various material with carbon element of industrialization, comprises graphitized carbon material and amorphous carbon material, as native graphite, modified graphite, graphitized intermediate-phase carbon microballon, soft carbon (as coke) and some hard carbons etc.But because graphite material theoretical capacity is low, heavy-current discharge performance high to the electrolyte selectivity factor such as poorlyly, all the time, people can substitute its new material striving to find.
In order to obtain the negative material with high-energy-density, the invention provides and nickel nitrate new method of hydrothermal treatment consists together with cobalt nitrate is prepared nickel cobalt oxygen oxide cathode material.In preparation process, add methyl alcohol and urea provides hydroxyl, polyvinylpyrrolidone makes reactant flock together as complexing agent to be easy to react more fully.And obtaining different material morphology by changing response parameter, realizing different performance of lithium ion batteries.This negative material can realize higher energy density, and make it meet the needs of large-sized power battery, this has great impetus to lithium ion battery applications in fields such as electric automobiles.
Summary of the invention
The object of the present invention is to provide a kind of nickel cobalt oxygen oxide electrode material and its preparation method and application, this material has very high energy density as lithium ion battery negative material, and preparation method is simple, cost is low, can prepare on a large scale and commercial application, realize innovation and the replacement of negative material.
Concrete method is by nickel nitrate (Ni (NO
3)
26H
2and cobalt nitrate (Co (NO O)
3)
26H
2o) add in distilled water and fully mix, add urea and methyl alcohol provides oh group, add polyethylene pyrrole network alkane ketone (PVP) as complexing agent, reaction can obtain nickel cobalt oxygen (NiCo in a kettle.
2o
4) oxide.
The technical solution used in the present invention is specific as follows:
A preparation method for nickel cobalt oxygen oxide electrode material, comprises the steps: the Ni (NO of mol ratio 1:1
3)
26H
2o and Co (NO
3)
26H
2o mixes, and adds in distilled water, fully stirs 1 hour; Then add methyl alcohol and polyvinylpyrrolidone, fully stir 1 hour; Then add urea, at 120-180 DEG C, react 10-24 hour; After reaction terminates, be cooled to room temperature, a large amount of distilled water of gained solid washs, and is then dried into powder at 80 DEG C, finally carries out 350 DEG C of heat treatments to powder, namely obtains nickel cobalt oxygen oxide electrode material.
Preferably:
50-100 mM of Ni (NO is added in every 80 ml distilled waters
3)
26H
2o and Co (NO
3)
26H
2o.
30-80 ml methanol is added in every 80 ml distilled waters.
1-5 gram of polyvinylpyrrolidone is added in every 80 ml distilled waters.
20-30 gram of urea is added in every 80 ml distilled waters.
Described heat treatment mode is: powder is put into Muffle furnace, is that 5 DEG C/min is warming up to 350 DEG C, is then incubated 2h with speed.
A kind of nickel cobalt oxygen oxide electrode material, is prepared by above preparation method.
Described nickel cobalt oxygen oxide electrode material is as the application of lithium ion battery negative material
Nickel cobalt oxygen (NiCo prepared by the present invention
2o
4) oxide electrode material comprises lamella, graininess, needle-like and spherical.
Lithium ion battery negative material provided by the invention, discharge capacity can reach 2000mAh/g first, and 20 capacity that circulate do not have significant change, and charge-discharge performance is excellent.Adopt lithium ion battery prepared by the present invention, capacity is high, cycle performance is good, can be used for suitability for industrialized production.
The present invention has the following advantages and beneficial effect:
(1) it is simple that the method that the present invention prepares nickel cobalt oxygen oxide electrode material has technique, and raw material sources are extensive, can carry out the advantages such as large-scale production.
(2) the present invention adopts different response parameters can obtain different material morphology, thus realizes different performance of lithium ion batteries.
(3) lithium ion battery negative material prepared of the nickel cobalt oxygen oxide electrode material utilizing the present invention to prepare first discharge capacity can reach 2000mAh/g, and 20 capacity that circulate do not have significant change, and charge-discharge performance is excellent.
Accompanying drawing explanation
Fig. 1 is nickel cobalt oxygen (NiCo prepared by embodiment 1
2o
4) scanning electron microscope (SEM) photograph of oxide; Wherein, Fig. 1 (a) is bulk nickel cobalt oxygen oxide (multiplication factor is 30k times), and Fig. 1 (b) is bulk nickel cobalt oxygen oxide (multiplication factor is 100k times).
Fig. 2 is nickel cobalt oxygen (NiCo prepared by embodiment 2
2o
4) scanning electron microscope (SEM) photograph of oxide; Wherein, Fig. 2 (a) is spherical nickel cobalt oxygen oxide (multiplication factor is 20k times), and Fig. 2 (b) is spherical nickel cobalt oxygen oxide (multiplication factor is 10k times).
Fig. 3 is first three charging and discharging curve of lithium cell cathode material prepared by embodiment 2; Wherein, Fig. 3 (a) is first three discharge and recharge data under 100mA/g charging and discharging currents density, and Fig. 3 (b) is first three discharge and recharge data under 200mA/g charging and discharging currents density.
Fig. 4 is nickel cobalt oxygen (NiCo prepared by embodiment 3
2o
4) scanning electron microscope (SEM) photograph of oxide; Wherein, Fig. 4 (a) is tip-like nickel cobalt oxygen oxide (multiplication factor is 5k times), Fig. 4 (b) is tip-like nickel cobalt oxygen oxide (multiplication factor is 10k times), and Fig. 4 (c) is tip-like nickel cobalt oxygen oxide (multiplication factor is 30k times).
Fig. 5 is the electrode cycle performance test figure of lithium cell cathode material prepared by embodiment 3; Wherein, Fig. 5 (a) represents 100mA/g discharge current density; Fig. 5 (b) represents 200mA/g electric discharge discharge current density.
Embodiment
Below in conjunction with drawings and Examples, the present invention is set forth further, but therefore do not limit the present invention within described scope of embodiments.
Embodiment 1
By the Ni (NO of 50mmol
3)
26H
2co (the NO of O and 50mmol
3)
26H
2o mixes, and adds in 80mL distilled water, fully stirs 1 hour, then adds 30mL methyl alcohol and 1g polyvinylpyrrolidone (PVP), fully stirs 1 hour; Then add the urea of 20g, pour in the reactor of 100mL after mixing, keep 10 hours at 120 DEG C; After reaction terminates, naturally cool to room temperature, wash with a large amount of distilled water, in the air dry oven of 80 DEG C, being dried into pressed powder, powder is put into Muffle furnace, is that 5 DEG C/min is warming up to 350 DEG C with speed, then be incubated 2h, nickel cobalt oxide electrode material can be obtained.Electrode material shape appearance figure prepared by embodiment 1 is as shown in Fig. 1 (a) He Fig. 1 (b).
Embodiment 2
By the Ni (NO of 150mmol
3)
26H
2co (the NO of O and 150mmol
3)
26H
2o mixes, and adds 80mL distilled water, fully stirs 1 hour, then adds 80mL methyl alcohol and 5g polyvinylpyrrolidone, fully stirs 1 hour; Then add 30g urea, pour in the reactor of 100mL after mixing, keep 24 hours at 180 DEG C; After reaction terminates, naturally cool to room temperature, wash with a large amount of distilled water, in the air dry oven of 80 DEG C, being dried into pressed powder, powder is put into Muffle furnace, is that 5 DEG C/min is warming up to 350 DEG C with speed, then be incubated 2h, nickel cobalt oxide electrode material can be obtained.
Electrode material shape appearance figure prepared by embodiment 2 is as shown in Fig. 2 (a) He Fig. 2 (b).After being made into battery, first three discharge and recharge data of material are as shown in Fig. 3 (a) He Fig. 3 (b).Fig. 3 (a) is first three discharge and recharge data under 100mA/g charging and discharging currents density, and Fig. 3 (b) is first three discharge and recharge data under 200mA/g charging and discharging currents density.Can see according to figure, under two kinds of charging and discharging currents density, in the discharge and recharge data of first three time of battery, discharge platform is obvious, predictive of the job stability that electrode material is good.
Embodiment 3
By the Ni (NO of 100mmol
3)
26H
2co (the NO of O and 100mmol
3)
26H
2o mixes, and adds 80mL distilled water, fully stirs 1 hour, then adds 50mL methyl alcohol and 3g polyvinylpyrrolidone, fully stirs 1 hour, then adds 25g urea, pour in the reactor of 100mL after mixing, and keeps 18 hours at 160 DEG C; After reaction terminates, naturally cool to room temperature, wash with a large amount of distilled water, in the air dry oven of 80 DEG C, being dried into pressed powder, powder is put into Muffle furnace, is that 5 DEG C/min is warming up to 350 DEG C with speed, then be incubated 2h, nickel cobalt oxide electrode material can be obtained.
Electrode material shape appearance figure prepared by embodiment 3 is as shown in Fig. 4 (a), Fig. 4 (b) He Fig. 4 (c).Be made into the test of the cycle performance after battery as shown in Fig. 5 (a) He Fig. 5 (b).According to test result display, under the current density of 100mA/g, the first discharge specific capacity of battery reaches 2000mAh/g.Charging and discharging currents density is brought up to 200mA/g, and electrode material specific discharge capacity still remains on 800mAh/g, shows the huge specific capacity of electrode material and good high rate performance.
Claims (8)
1. a preparation method for nickel cobalt oxygen oxide electrode material, is characterized in that, comprise the following steps: by the Ni (NO of mol ratio 1:1
3)
26H
2o and Co (NO
3)
26H
2o mixes, and adds in distilled water, fully stirs 1 hour; Then add methyl alcohol and polyvinylpyrrolidone, fully stir 1 hour; Then add urea, at 120-180 DEG C, react 10-24 hour; After reaction terminates, be cooled to room temperature, a large amount of distilled water of gained solid washs, and is then dried into powder at 80 DEG C, finally carries out 350 DEG C of heat treatments to powder, namely obtains nickel cobalt oxygen oxide electrode material.
2. the preparation method of nickel cobalt oxygen oxide electrode material according to claim 1, is characterized in that: add 50-100 mM of Ni (NO in every 80 ml distilled waters
3)
26H
2o and Co (NO
3)
26H
2o.
3. the preparation method of nickel cobalt oxygen oxide electrode material according to claim 1, is characterized in that: add 30-80 ml methanol in every 80 ml distilled waters.
4. the preparation method of nickel cobalt oxygen oxide electrode material according to claim 1, is characterized in that: add 1-5 gram of polyvinylpyrrolidone in every 80 ml distilled waters.
5. the preparation method of nickel cobalt oxygen oxide electrode material according to claim 1, is characterized in that: add 20-30 gram of urea in every 80 ml distilled waters.
6. the preparation method of nickel cobalt oxygen oxide electrode material according to claim 1, is characterized in that: described heat treatment mode is: powder is put into Muffle furnace, is that 5 DEG C/min is warming up to 350 DEG C, is then incubated 2h with speed.
7. a nickel cobalt oxygen oxide electrode material, is characterized in that: prepared by the preparation method described in any one of claim 1-6.
8. nickel cobalt oxygen oxide electrode material according to claim 7 is as the application of lithium ion battery negative material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510122607.1A CN104659360A (en) | 2015-03-19 | 2015-03-19 | Nickel-cobalt oxide electrode material as well as preparation method and applications thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510122607.1A CN104659360A (en) | 2015-03-19 | 2015-03-19 | Nickel-cobalt oxide electrode material as well as preparation method and applications thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104659360A true CN104659360A (en) | 2015-05-27 |
Family
ID=53250238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510122607.1A Pending CN104659360A (en) | 2015-03-19 | 2015-03-19 | Nickel-cobalt oxide electrode material as well as preparation method and applications thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104659360A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979551A (en) * | 2015-07-17 | 2015-10-14 | 武汉大学 | Carbon nano-sphere/NiCo2O4 composite material as well as preparation method and application thereof |
| CN105417590A (en) * | 2015-11-24 | 2016-03-23 | 青岛能迅新能源科技有限公司 | Method for synthesizing nickel cobaltate spinel |
| CN105460983A (en) * | 2015-11-24 | 2016-04-06 | 青岛能迅新能源科技有限公司 | Method for preparing nickel cobaltate nano material for super capacitor |
| CN106011911A (en) * | 2016-05-26 | 2016-10-12 | 重庆大学 | Method of partial vulcanization to improve oxygen evolution electrode performance of metal hydroxide |
| CN106966440A (en) * | 2017-04-01 | 2017-07-21 | 中国科学院上海高等研究院 | The porous NiCo of two dimension2O4And preparation method and application |
| CN108452797A (en) * | 2017-02-17 | 2018-08-28 | 中国科学院上海高等研究院 | Metal oxide supported noble metal catalyst, Preparation method and use |
| CN108760854A (en) * | 2018-05-07 | 2018-11-06 | 杭州电子科技大学 | A kind of preparation method of polynary no enzyme electrochemical glucose sensing material |
| CN108807013A (en) * | 2018-03-26 | 2018-11-13 | 西北工业大学 | Porous flower-shape Ni Co2O4/Co3O4The preparation method of/NiO electrode material for super capacitor |
| CN110176590A (en) * | 2019-05-31 | 2019-08-27 | 淮安新能源材料技术研究院 | The rich lithium presoma of spherical shape that be made of class square and its made of lithium-rich anode material and product preparation method |
| CN110299521A (en) * | 2019-06-24 | 2019-10-01 | 贵州梅岭电源有限公司 | A kind of rich lithium manganese anode material of metal ion mixing and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2276094A1 (en) * | 2008-04-24 | 2011-01-19 | Osaka Gas Co., Ltd. | Cell for solid oxide fuel battery |
| CN103107025A (en) * | 2013-02-25 | 2013-05-15 | 东华大学 | Preparation method of supercapacitor electrode material NiCo2O4 |
| CN103928676A (en) * | 2014-04-25 | 2014-07-16 | 云南大学 | Hollow nano cubic NiCo2O4 dual-metal oxide material and preparation method thereof |
-
2015
- 2015-03-19 CN CN201510122607.1A patent/CN104659360A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2276094A1 (en) * | 2008-04-24 | 2011-01-19 | Osaka Gas Co., Ltd. | Cell for solid oxide fuel battery |
| CN103107025A (en) * | 2013-02-25 | 2013-05-15 | 东华大学 | Preparation method of supercapacitor electrode material NiCo2O4 |
| CN103928676A (en) * | 2014-04-25 | 2014-07-16 | 云南大学 | Hollow nano cubic NiCo2O4 dual-metal oxide material and preparation method thereof |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979551A (en) * | 2015-07-17 | 2015-10-14 | 武汉大学 | Carbon nano-sphere/NiCo2O4 composite material as well as preparation method and application thereof |
| CN104979551B (en) * | 2015-07-17 | 2017-08-08 | 武汉大学 | A kind of Nano carbon balls/NiCo2O4Composite and preparation method and application |
| CN105417590A (en) * | 2015-11-24 | 2016-03-23 | 青岛能迅新能源科技有限公司 | Method for synthesizing nickel cobaltate spinel |
| CN105460983A (en) * | 2015-11-24 | 2016-04-06 | 青岛能迅新能源科技有限公司 | Method for preparing nickel cobaltate nano material for super capacitor |
| CN105417590B (en) * | 2015-11-24 | 2016-10-05 | 青岛能迅新能源科技有限公司 | A kind of method synthesizing cobalt acid nickel spinelle |
| CN106011911B (en) * | 2016-05-26 | 2018-04-17 | 重庆大学 | A kind of method that partial vulcanization improves metal hydroxides analysis oxygen electrode performance |
| CN106011911A (en) * | 2016-05-26 | 2016-10-12 | 重庆大学 | Method of partial vulcanization to improve oxygen evolution electrode performance of metal hydroxide |
| CN108452797A (en) * | 2017-02-17 | 2018-08-28 | 中国科学院上海高等研究院 | Metal oxide supported noble metal catalyst, Preparation method and use |
| CN108452797B (en) * | 2017-02-17 | 2021-01-05 | 中国科学院上海高等研究院 | Metal oxide loaded noble metal catalyst, preparation method and application |
| CN106966440A (en) * | 2017-04-01 | 2017-07-21 | 中国科学院上海高等研究院 | The porous NiCo of two dimension2O4And preparation method and application |
| CN108807013A (en) * | 2018-03-26 | 2018-11-13 | 西北工业大学 | Porous flower-shape Ni Co2O4/Co3O4The preparation method of/NiO electrode material for super capacitor |
| CN108807013B (en) * | 2018-03-26 | 2020-04-03 | 西北工业大学 | Porous flower-like NiCo2O4/Co3O4Preparation method of/NiO super capacitor electrode material |
| CN108760854A (en) * | 2018-05-07 | 2018-11-06 | 杭州电子科技大学 | A kind of preparation method of polynary no enzyme electrochemical glucose sensing material |
| CN108760854B (en) * | 2018-05-07 | 2020-06-09 | 杭州电子科技大学 | Preparation method of multielement enzyme-free electrochemical glucose sensing material |
| CN110176590A (en) * | 2019-05-31 | 2019-08-27 | 淮安新能源材料技术研究院 | The rich lithium presoma of spherical shape that be made of class square and its made of lithium-rich anode material and product preparation method |
| CN110176590B (en) * | 2019-05-31 | 2020-09-04 | 淮安新能源材料技术研究院 | Spherical lithium-rich precursor composed of similar cubes, lithium-rich cathode material prepared from spherical lithium-rich precursor and preparation method of product |
| CN110299521A (en) * | 2019-06-24 | 2019-10-01 | 贵州梅岭电源有限公司 | A kind of rich lithium manganese anode material of metal ion mixing and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104659360A (en) | Nickel-cobalt oxide electrode material as well as preparation method and applications thereof | |
| CN104201380B (en) | Preparation method of nano Ni3S2 material with lamellar structure | |
| CN102790217B (en) | Carbon cladded ferriferrous oxide negative electrode material of lithium ion battery and preparation method thereof | |
| CN108539171A (en) | A kind of preparation method of the zinc sulphide with graphene oxide compound and its application in lithium sulfur battery anode material | |
| CN105161711A (en) | Lithium manganate cathode material, preparation method and use | |
| CN103094535A (en) | Sulfur/carbon porous nano composite material and preparation method and application thereof | |
| CN104993125A (en) | Preparation method of lithium ion battery novel cathode material Fe3O4/Ni/C | |
| CN103151522A (en) | Mixed crystal form ferric fluoride cathode material and preparation method thereof | |
| CN102280640A (en) | Novel anode material for lithium-ion secondary battery | |
| CN104882607A (en) | Anima bone base type graphene lithium ion battery negative electrode material and preparation method thereof | |
| CN107293705B (en) | Lithium ion battery bamboo charcoal/metal oxide composite cathode material and its preparation method and application | |
| CN106505246A (en) | A kind of preparation method of multistage loose structure mangano-manganic oxide/carbon nanosheet lithium ion battery negative material | |
| CN102969501A (en) | Application method of binary metal sulfides in chargeable magnesium battery | |
| CN105047905A (en) | Surface modification method of nickel-rich cathode material | |
| CN105428628A (en) | Preparation method of porous spherical high-voltage lithium ion battery positive electrode material | |
| CN106450193A (en) | Nickel sulfide/graphene composite material and preparation method and application thereof | |
| CN111092222B (en) | Cobalt-iron-copper sulfide negative electrode material of sodium ion battery and preparation method thereof | |
| CN105914354A (en) | Sodium-rich type titanium matrix layered solid solution electrode material for room-temperature sodium ion battery and preparation method | |
| CN108110250A (en) | Zinc manganate/lithium iron oxide ion battery cathode material and preparation method thereof | |
| CN103035918A (en) | SnO2-C compound, preparation method thereof and application of SnO2-C compound as negative electrode material of lithium ion battery casing | |
| CN110683589B (en) | Preparation method of cobaltosic oxide nano material | |
| CN109768233B (en) | NiCo of lithium ion battery2S4Preparation method of/graphene composite negative electrode material | |
| CN107658459B (en) | Preparation method and application of iron oxide, ferrous disulfide and sulfur composite material | |
| CN113690425B (en) | High-capacity silicon-based composite lithium battery negative electrode material and preparation method thereof | |
| CN113735180B (en) | Method for preparing sodium ion battery anode material by using LDH-based precursor to obtain cobalt iron sulfide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |