CN109742391A - A kind of nickelic lithium ion battery, cell positive material and preparation method thereof - Google Patents
A kind of nickelic lithium ion battery, cell positive material and preparation method thereof Download PDFInfo
- Publication number
- CN109742391A CN109742391A CN201910022770.9A CN201910022770A CN109742391A CN 109742391 A CN109742391 A CN 109742391A CN 201910022770 A CN201910022770 A CN 201910022770A CN 109742391 A CN109742391 A CN 109742391A
- Authority
- CN
- China
- Prior art keywords
- nickelic
- anode
- lithium
- molecular sieve
- low
- 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.)
- Granted
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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of nickelic lithium ion batteries, cell positive material and preparation method thereof, mix nickelic tertiary cathode material, conductive agent, binder and low-temperature activation molecular sieve, obtain presoma, N-Methyl pyrrolidone is dispersed by presoma, obtain anode sizing agent, anode sizing agent is coated on aluminium foil, and dry the aluminium foil for being coated with anode sizing agent, obtain cell positive material, due to joined low-temperature activation molecular sieve in nickelic anode material for lithium-ion batteries, remaining micro-moisture in the adsorbable cell positive material of low-temperature activation molecular sieve and electrolyte, inhibition water is reacted with electrolyte, it reduces the generation of hydrogen fluoride and reduces corrosion of the hydrogen fluoride to anode, enhance anode and electrolyte interface stability, improve cycle performance, and since the molecular sieve can be in low-temperature activation, therefore it can be coated with just in drying Dehydration activation is realized during the aluminium foil of pole slurry, simplifies preparation flow, is suitble to industrialized production.
Description
Technical field
The present invention relates to field of lithium ion battery, and in particular to a kind of nickelic lithium ion battery, cell positive material and its
Preparation method.
Background technique
Currently, nickelic tertiary cathode material uses more and more extensive in preparing lithium ion battery, with traditional phosphoric acid
The anode material for lithium-ion batteries such as iron lithium, cobalt acid lithium, lithium nickel cobalt manganese, LiMn2O4 are compared with voltage height, energy density is big, recycles
The advantages that service life is long.But nickelic lithium ion battery storage and cyclic process in, even if micro moisture there are can be with electricity
It solves liquid and side reaction occurs, consume electrolyte and generate the hydrogen fluoride that there is corrosiveness to positive electrode, cause electrode structure steady
Qualitative variation, cycle performance decline, exists simultaneously security risk.
Lithium ion cell positive method of modifying common at present mainly has cladding process, electrolysis additive method, wherein coating
Method is to coat the substances such as one layer of metal oxide, fluoride or phosphate on anode surface, prevents positive electrode and electrolysis
Liquid directly contacts, but cladding process can make the electric conductivity of battery be deteriorated, hinder battery in ion transmission, cause battery impedance and
The reduction of high rate performance.And the main function of electrolysis additive is the chemical stability for improving electrolyte in circulation, but electric
The compatibility of solution solution additive and positive and negative anodes has differences, and can reduce the chemical property of electrolyte.
Summary of the invention
Technical problem to be solved by the present invention lies in overcome the deficiencies of the prior art and provide a kind of nickelic lithium-ion electric
Pond, cell positive material and preparation method thereof.
In order to achieve the above purpose, present invention employs the following technical solutions:
In a general aspect, a kind of nickelic anode material for lithium-ion batteries is provided, including aluminium foil and is set to the aluminium
Positive diaphragm on foil, positive diaphragm include nickelic tertiary cathode material, bonding agent, conductive agent and low-temperature activation molecular sieve, low
Warm activated molecular sieve chemical general formula is xROySiO2·zAl2O3·P2O5, in the general formula, 0 < x≤0.9,0 < y≤0.9,0.1≤
One of z≤1.0, R Cu, Ca or Ba.
Preferably, the mass ratio of the component of nickelic tertiary cathode material, bonding agent and conductive agent is 7.0~9.0 parts: 0.5
~2.0 parts: 0.5~1.0 parts, the quality of low-temperature activation molecular sieve be the quality of nickelic tertiary cathode material 0.1~
2.0wt%.
Preferably, nickelic tertiary cathode material is one of NCM622, NCM811, NCA or at least one mixture.
Preferably, conductive agent is one of acetylene black, conductive black, electrically conductive graphite or Ketjen black.
Preferably, bonding agent is one of Kynoar, polytetrafluoroethylene (PTFE), carboxymethylcellulose sodium or at least one
Mixture.
Preferably, the aperture of low-temperature activation molecular sieve is 0.3nm~2nm, and the partial size of low-temperature activation molecular sieve is 3 μm~4 μ
m。
In another general aspect, a kind of nickelic lithium ion battery is provided, including anode, cathode, is set to the anode
Diaphragm and electrolyte between the cathode, anode are made of above-mentioned nickelic anode material for lithium-ion batteries.
In another general aspect, a kind of preparation method of nickelic anode material for lithium-ion batteries is also provided, nickelic lithium from
Sub- cell positive material is above-mentioned nickelic anode material for lithium-ion batteries, the preparation method of nickelic anode material for lithium-ion batteries
The following steps are included:
Nickelic tertiary cathode material, conductive agent, binder and low-temperature activation molecular sieve are mixed, presoma is obtained；
N-Methyl pyrrolidone is dispersed by presoma, obtains anode sizing agent；
Anode sizing agent is coated on aluminium foil, and dries the aluminium foil for being coated with anode sizing agent, obtains cell positive material.
Preferably, it is vacuum environment that drying, which is coated with the drying environment of the aluminium foil of anode sizing agent,.
Preferably, the drying temperature section that drying is coated with the aluminium foil of anode sizing agent is 100 DEG C~120 DEG C, and drying time is
10~12 hours.
The present invention provides a kind of nickelic lithium ion batteries, cell positive material and preparation method thereof, due in nickelic lithium
It joined low-temperature activation molecular sieve in ion battery positive electrode, due to the addition of low-temperature activation molecular sieve, low-temperature activation molecule
Remaining micro-moisture in adsorbable cell positive material and electrolyte is sieved, inhibition water is reacted with electrolyte, reduces hydrogen fluoride
Generation and reduce corrosion of the hydrogen fluoride to anode, enhance anode and electrolyte interface stability, improve and follow
Ring performance, and since the molecular sieve can be in low-temperature activation, it can be real during drying is coated with the aluminium foil of anode sizing agent
Now dehydration activation, greatly simplifies preparation flow, is suitble to industrialized production, has good practicability.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the preparation method flow chart of nickelic anode material for lithium-ion batteries of the invention；
Fig. 2 is the microstructure schematic diagram of low-temperature activation molecular sieve in the embodiment of the present invention；
Fig. 3 is cycle performance of battery curve synoptic diagram in the embodiment of the present invention 1；
Fig. 4 is cycle performance of battery curve synoptic diagram in the embodiment of the present invention 2；
Fig. 5 is cycle performance of battery curve synoptic diagram in comparative example 1 of the invention；
Fig. 6 is cycle performance of battery curve synoptic diagram in comparative example 2 of the invention；
Fig. 7 is the temperature-activated curve synoptic diagram of low-temperature activation molecular sieve and conventional molecular sieve of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Fig. 1 is the preparation method flow chart of nickelic anode material for lithium-ion batteries of the invention, as shown in Figure 1, this implementation
The preparation method of the nickelic anode material for lithium-ion batteries of example, comprising the following steps:
S01, the nickelic tertiary cathode material of mixing, conductive agent, binder and low-temperature activation molecular sieve, obtain presoma；
In the step S01 of the present embodiment, nickelic tertiary cathode material, conductive agent, binder and low-temperature activation point are mixed
Sub- sifter device body includes: to weigh mass ratio to be nickelic tertiary cathode material, conductive agent and the binder of 8:1:1, then weigh quality and be
The low-temperature activation molecular sieve of the 0.5wt% of nickelic tertiary cathode material, then by nickelic tertiary cathode material, conductive agent, bonding
Agent and low-temperature activation molecular sieve are dry-mixed, to be mixed that presoma uniformly can be obtained.
It is worth noting that, the mass ratio of nickelic tertiary cathode material, conductive agent and binder can also be 9.0:0.5:
The range of choice of 0.5 or 7.0:2.0:1.0, i.e., the mass ratio of the component of nickelic tertiary cathode material, bonding agent and conductive agent is
7.0~9.0 parts: 0.5~2.0 parts: 0.5~1.0 part, wherein the content of bonding agent cannot be excessively high, otherwise can reduce battery electrode
Electric conductivity.
Further, wherein the chemical constituent of nickelic tertiary cathode material is LiNi0.6Co0.2Mn0.2(NCM622), certainly,
The chemical constituent of nickelic tertiary cathode material can also be changed to LiNi according to needs of production0.8Co0.1Mn0.1(NCM811)、
LiNi0.8Co0.15Al0.05O2(NCA) or the tertiary cathode material of other similar performances.
Further, low-temperature activation molecular sieve general formula is xROySiO2·zAl2O3·P2O5, in the general formula, 0 < x
≤ 0.9,0 < y≤0.9,0.1≤z≤1.0, one of R Cu, Ca or Ba, in an embodiment of the present invention, using containing
There is the low-temperature activation molecular sieve of Cu, the low-temperature activation molecular sieve of this component can adsorb residual in cell positive material and electrolyte
The micro-moisture stayed, inhibition water are reacted with electrolyte, are reduced the generation of hydrogen fluoride and are reduced corruption of the hydrogen fluoride to anode
Erosion, enhances anode and electrolyte interface stability, improves cycle performance, and the anakmetomeres that the present embodiment uses
Sieve also can be realized dehydration in the lower situation of temperature.
Fig. 2 is the microstructure schematic diagram of low-temperature activation molecular sieve in the embodiment of the present invention, as shown in Fig. 2, this implementation
The aperture of the low-temperature activation molecular sieve of example is 0.3nm~2nm, and the partial size of low-temperature activation molecular sieve is 3 μm~4 μm.
Further, the conductive agent of the present embodiment is one in acetylene black, conductive black, electrically conductive graphite or Ketjen black
Kind.
Further, the bonding agent of the present embodiment is Kynoar, polytetrafluoroethylene (PTFE), one in carboxymethylcellulose sodium
Kind or at least one mixture.
S02, N-Methyl pyrrolidone is dispersed by presoma, obtains anode sizing agent；
In the step S02 of the present embodiment, when dispersing N-Methyl pyrrolidone for presoma, it is only necessary to use N- methyl pyrrole
Pyrrolidone soaks presoma, after presoma is added in N-Methyl pyrrolidone, stirs the solution, which is mixed
Uniformly, anode sizing agent is formed.
S03, anode sizing agent is coated on aluminium foil, and dries the aluminium foil for being coated with anode sizing agent, obtain cell positive material；
In the step S03 of the present embodiment, aluminium foil is the common collector of positive electrode, by anode sizing agent in the present embodiment
The coating method being coated on aluminium foil is rolling method, it is ensured that anode sizing agent coating is uniform, and the drying of the present embodiment is coated with
The drying environment of the aluminium foil of anode sizing agent be vacuum environment, drying temperature section be 100 DEG C~120 DEG C, drying time be 10~
12 hours, positive diaphragm can be formed in aluminium foil surface after anode sizing agent drying, in vacuum environment, moisture in environment compared with
It is few, and since internal moisture can be also detached from by the low-temperature activation molecular sieve of the present embodiment at low temperature, low-temperature activation
The activation process of molecular sieve and the drying course of cell positive material can carry out simultaneously, with the rising of temperature, when temperature reaches
When to 120 DEG C, low-temperature activation molecular sieve completes dehydration activation, then keeps the temperature to cell positive material, completes to be dried.
Embodiment 2
It is unlike the first embodiment, low in the step S01 of the present embodiment as the another embodiment of this specification
The quality of warm activated molecular sieve is the 2.0wt% of nickelic tertiary cathode material.
Comparative example 1
As a comparison embodiment of this specification, unlike the first embodiment, in the step S01 of this comparative example
In, the low-temperature activation molecular sieve in the embodiment of the present invention is not added.
Comparative example 2
As the another comparison embodiment of this specification, unlike the first embodiment, in the step S01 of this comparative example
In, traditional high-temperature activation molecular sieve is added, this comparative example is using UOP molecular sieve, chemical constituent NaOSiO2·
Al2O3.The quality of high-temperature activation molecular sieve is the 0.5wt% of nickelic tertiary cathode material.
Test experiments
Fig. 3 is cycle performance of battery curve synoptic diagram in the embodiment of the present invention 1, and Fig. 4 is electric in the embodiment of the present invention 2
Pond cycle performance curve synoptic diagram, Fig. 5 are cycle performance of battery curve synoptic diagrams in comparative example 1 of the invention, and Fig. 6 is the present invention
Comparative example 2 in cycle performance of battery curve synoptic diagram, lithium prepared by embodiment 1, embodiment 2, comparative example 1 and comparative example 2
Ion battery positive electrode is assembled into a kind of nickelic lithium ion battery respectively, which includes anode, cathode, sets
It is disposed between the positive electrode and the negative electrode diaphragm and electrolyte, the anode of nickelic lithium ion battery is by above-mentioned nickelic lithium-ion electric
What pond positive electrode was constituted.
It is followed charge and discharge are carried out in the nickelic lithium ion battery being assembled at normal temperature the voltage environment of 2.75V~4.5V
Ring, cycle-index be 500 circle, arrive cycle performance of battery curve synoptic diagram as shown in Figures 3 to 6.
After continuous charge and discharge 500 circle, the specific discharge capacity of the battery of the cell positive material production in embodiment 1 is kept
Rate is 62.37%, and the specific discharge capacity conservation rate of the battery of the cell positive material production in embodiment 2 is 61.27%.
And the specific discharge capacity of the battery without the molecular sieve modified cell positive material production of low-temperature activation in comparative example 1
Conservation rate is 38.29%, the battery of the opposite molecular sieve modified cell positive material production through low-temperature activation of cycle performance
It is remarkably decreased, and the electric discharge specific volume of the battery of the molecular sieve modified cell positive material production in comparative example 2 through high-temperature activation
Measuring conservation rate is 56%, although the molecular sieve of high-temperature activation also maintains certain specific discharge capacity, with embodiment 1 and implementation
The battery that joined the molecular sieve modified cell positive material production of low-temperature activation in example 2 is compared, cycle performance relative mistake.
Fig. 7 is the temperature-activated curve synoptic diagram of low-temperature activation molecular sieve and conventional molecular sieve of the invention, such as Fig. 7 institute
Show, 80% or more absorption water can be desorbed at 60 DEG C in low-temperature activation molecular sieve.And during the preparation process, due to high temperature
Activated molecular sieve is dehydrated completely needs environment temperature to reach 200 DEG C, therefore dehydration is unable to complete when pole drying, needs to high temperature
Activated molecular sieve individually carries out dehydrating operations, and the dehydration temperaturre of low-temperature activation molecular sieve is not high, during pole drying i.e.
It can complete to be dehydrated, simplify the process of electrode fabrication, save the time of electrode fabrication.
To sum up, the embodiment of the invention provides a kind of nickelic anode material for lithium-ion batteries and preparation method thereof, due to
It joined low-temperature activation molecular sieve in nickelic anode material for lithium-ion batteries, due to the addition of low-temperature activation molecular sieve, low temperature is living
Chemoattractant molecule sieves remaining micro-moisture in adsorbable cell positive material and electrolyte, and inhibition water is reacted with electrolyte, reduced
Corrosion of the generation and reduction hydrogen fluoride of hydrogen fluoride to anode, enhances anode and electrolyte interface stability, mentions
High cycle performance, and due to the molecular sieve can in low-temperature activation, can drying be coated with anode sizing agent aluminium foil mistake
Dehydration activation is realized in journey, greatly simplifies preparation flow, is suitble to industrialized production, has good practicability.
It is above-mentioned that this specification specific embodiment is described.Other embodiments are in the scope of the appended claims
It is interior.In some cases, the movement recorded in detail in the claims or step can be come according to the sequence being different from embodiment
It executes and desired result still may be implemented.In addition, process depicted in the drawing not necessarily require show it is specific suitable
Sequence or consecutive order are just able to achieve desired result.In some embodiments, multitasking and parallel processing be also can
With or may be advantageous.
It should be pointed out that for those skilled in the art, under the premise of not departing from the application principle,
Several improvements and modifications can also be made, these improvements and modifications also should be regarded as the protection scope of the application.
Claims (10)
1. a kind of nickelic anode material for lithium-ion batteries, including aluminium foil and the positive diaphragm being set on the aluminium foil, feature
It is, the anode diaphragm includes nickelic tertiary cathode material, bonding agent, conductive agent and low-temperature activation molecular sieve, the low temperature
Activated molecular sieve chemical general formula is xROySiO2·zAl2O3·P2O5, in the general formula, 0 < x≤0.9,0 < y≤0.9,0.1≤z
One of≤1.0, R Cu, Ca or Ba.
2. nickelic anode material for lithium-ion batteries according to claim 1, which is characterized in that the nickelic tertiary cathode material
The mass ratio of the component of material, the bonding agent and the conductive agent is 7.0~9.0 parts: 0.5~2.0 parts: 0.5~1.0 part, institute
The quality of low-temperature activation molecular sieve is stated as 0.1~2.0wt% of the quality of the nickelic tertiary cathode material.
3. nickelic anode material for lithium-ion batteries according to claim 1, which is characterized in that the nickelic tertiary cathode material
Material is one of NCM622, NCM811, NCA or at least one mixture.
4. nickelic anode material for lithium-ion batteries according to claim 1, which is characterized in that the conductive agent is acetylene
One of black, conductive black, electrically conductive graphite or Ketjen black.
5. nickelic anode material for lithium-ion batteries according to claim 1, which is characterized in that the bonding agent is to gather inclined fluorine
One of ethylene, polytetrafluoroethylene (PTFE), carboxymethylcellulose sodium or at least one mixture.
6. nickelic anode material for lithium-ion batteries according to claim 1, which is characterized in that the low-temperature activation molecular sieve
Aperture be 0.3nm~2nm, the partial size of the low-temperature activation molecular sieve is 3 μm~4 μm.
7. a kind of nickelic lithium ion battery, including anode, cathode, the diaphragm being set between the anode and the cathode, with
And electrolyte, which is characterized in that the anode is by nickelic anode material for lithium-ion batteries structure described in any one of claims 1-6
At.
8. a kind of preparation method of nickelic anode material for lithium-ion batteries, which is characterized in that the nickelic lithium ion cell positive
Material is the described in any item nickelic anode material for lithium-ion batteries of claim 1-7, the nickelic lithium ion cell positive material
The preparation method of material the following steps are included:
Nickelic tertiary cathode material, conductive agent, binder and low-temperature activation molecular sieve are mixed, presoma is obtained；
N-Methyl pyrrolidone is dispersed by the presoma, obtains anode sizing agent；
The anode sizing agent is coated on aluminium foil, and dries the aluminium foil for being coated with anode sizing agent, obtains cell positive material.
9. the preparation method of nickelic anode material for lithium-ion batteries according to claim 8, which is characterized in that the drying
The drying environment for being coated with the aluminium foil of anode sizing agent is vacuum environment.
10. the preparation method of nickelic anode material for lithium-ion batteries according to claim 8, which is characterized in that the baking
The drying temperature section of the dry-coated aluminium foil for having anode sizing agent is 100 DEG C~120 DEG C, and drying time is 10~12 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910022770.9A CN109742391B (en) | 2019-01-10 | 2019-01-10 | High-nickel lithium ion battery, battery positive electrode material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910022770.9A CN109742391B (en) | 2019-01-10 | 2019-01-10 | High-nickel lithium ion battery, battery positive electrode material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109742391A true CN109742391A (en) | 2019-05-10 |
| CN109742391B CN109742391B (en) | 2021-12-07 |
Family
ID=66364215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910022770.9A Active CN109742391B (en) | 2019-01-10 | 2019-01-10 | High-nickel lithium ion battery, battery positive electrode material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109742391B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416540A (en) * | 2019-07-26 | 2019-11-05 | 陕西科技大学 | A kind of nickelic tertiary cathode material and preparation method thereof |
| CN110931774A (en) * | 2019-11-21 | 2020-03-27 | 广东邦普循环科技有限公司 | Composite Ni 65-coated nickel-cobalt-manganese ternary cathode material and preparation method and application thereof |
| CN113675400A (en) * | 2020-05-15 | 2021-11-19 | 比亚迪股份有限公司 | Positive electrode, preparation method thereof and lithium ion battery |
| CN113991053A (en) * | 2021-10-27 | 2022-01-28 | 深圳市量能科技有限公司 | Battery anode and lithium ion battery comprising same |
| CN116646610A (en) * | 2023-06-28 | 2023-08-25 | 武汉中科先进材料科技有限公司 | Method for improving long-cycle stability of high-nickel NMC811 ternary lithium ion battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571198A (en) * | 2003-07-12 | 2005-01-26 | 鸿富锦精密工业（深圳）有限公司 | Lithium secondary battery anode and lithium secondary battery using the same |
| CN101150182A (en) * | 2006-09-18 | 2008-03-26 | 深圳市比克电池有限公司 | Lithium ion battery electrode slice, electric core and its making method |
| CN102709521A (en) * | 2012-06-12 | 2012-10-03 | 宁德新能源科技有限公司 | Lithium ion battery and anode thereof |
| CN106532106A (en) * | 2016-12-21 | 2017-03-22 | 远东福斯特新能源有限公司 | Lithium-ion battery, electrolyte and preparation method of electrolyte |
| CN108091927A (en) * | 2017-12-13 | 2018-05-29 | 桑顿新能源科技有限公司 | A kind of lithium ion battery and preparation method thereof of high safety, long circulation life |
-
2019
- 2019-01-10 CN CN201910022770.9A patent/CN109742391B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571198A (en) * | 2003-07-12 | 2005-01-26 | 鸿富锦精密工业（深圳）有限公司 | Lithium secondary battery anode and lithium secondary battery using the same |
| CN101150182A (en) * | 2006-09-18 | 2008-03-26 | 深圳市比克电池有限公司 | Lithium ion battery electrode slice, electric core and its making method |
| CN102709521A (en) * | 2012-06-12 | 2012-10-03 | 宁德新能源科技有限公司 | Lithium ion battery and anode thereof |
| CN106532106A (en) * | 2016-12-21 | 2017-03-22 | 远东福斯特新能源有限公司 | Lithium-ion battery, electrolyte and preparation method of electrolyte |
| CN108091927A (en) * | 2017-12-13 | 2018-05-29 | 桑顿新能源科技有限公司 | A kind of lithium ion battery and preparation method thereof of high safety, long circulation life |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416540A (en) * | 2019-07-26 | 2019-11-05 | 陕西科技大学 | A kind of nickelic tertiary cathode material and preparation method thereof |
| CN110931774A (en) * | 2019-11-21 | 2020-03-27 | 广东邦普循环科技有限公司 | Composite Ni 65-coated nickel-cobalt-manganese ternary cathode material and preparation method and application thereof |
| CN113675400A (en) * | 2020-05-15 | 2021-11-19 | 比亚迪股份有限公司 | Positive electrode, preparation method thereof and lithium ion battery |
| CN113675400B (en) * | 2020-05-15 | 2023-07-14 | 比亚迪股份有限公司 | Positive electrode, preparation method thereof and lithium ion battery |
| CN113991053A (en) * | 2021-10-27 | 2022-01-28 | 深圳市量能科技有限公司 | Battery anode and lithium ion battery comprising same |
| CN116646610A (en) * | 2023-06-28 | 2023-08-25 | 武汉中科先进材料科技有限公司 | Method for improving long-cycle stability of high-nickel NMC811 ternary lithium ion battery |
| CN116646610B (en) * | 2023-06-28 | 2024-01-30 | 武汉中科先进材料科技有限公司 | Method for improving long-cycle stability of high-nickel NMC811 ternary lithium ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109742391B (en) | 2021-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109742391A (en) | A kind of nickelic lithium ion battery, cell positive material and preparation method thereof | |
| CN111362254B (en) | Preparation method and application of nitrogen-doped carbon nanotube-loaded phosphorus-doped cobaltosic oxide composite material | |
| CN110104630B (en) | Porous carbon composite material for battery diaphragm and preparation method and application thereof | |
| CN106229498B (en) | Cathode material suitable for water-based metal ion battery and preparation method thereof | |
| CN105489818A (en) | Preparation method for modified diaphragm for lithium-sulfur battery, modified diaphragm and lithium-sulfur battery adopting modified diaphragm | |
| CN104993111B (en) | Manganese dioxide/nitrating carbon fiber cathode composite material for sodium-ion battery and preparing method thereof | |
| CN108963235B (en) | Graphene-enhanced carbon-coated titanium manganese phosphate sodium microsphere electrode material and preparation method and application thereof | |
| CN106876673B (en) | The method that one-step method prepares the core-shell structure lithium sulfur battery anode material that titanium dioxide and graphene bilayer coat altogether | |
| CN109103399A (en) | A kind of lithium-sulfur cell functional diaphragm and preparation method thereof and the application in lithium-sulfur cell | |
| CN108598394B (en) | Carbon-coated titanium manganese phosphate sodium microspheres and preparation method and application thereof | |
| CN112563586B (en) | Method for improving performance of zinc-iodine battery based on halogen bond effect | |
| CN107946564B (en) | Rich in Na4Mn2O5/Na0.7MnO2Composite material and preparation method and application thereof | |
| WO2024087872A1 (en) | Ternary positive electrode material, and preparation method therefor and use thereof | |
| CN113937262A (en) | Metal oxide modified positive electrode material for sodium ion battery and preparation method and application thereof | |
| CN115360344B (en) | Composite positive electrode material for sodium ion battery and preparation method thereof | |
| CN109301186A (en) | A kind of tertiary cathode material and preparation method thereof of cladded type porous structure | |
| CN110482604A (en) | A kind of Cu2V2O7Nanometer rods kalium ion battery positive electrode, kalium ion battery and preparation method thereof | |
| CN113328086A (en) | Pyrophosphate composite material, preparation method and application thereof, and sodium ion battery | |
| CN113793980A (en) | Rechargeable organic calcium ion battery and preparation method thereof | |
| CN111640933A (en) | Manganese dioxide/carbon nanotube foam material, zinc-manganese battery, and preparation methods and applications thereof | |
| CN112209366A (en) | Preparation method of lithium-sulfur battery electrode material | |
| CN108987694B (en) | Reduced graphene oxide coated Na4MnV(PO4)3@ rGO microsphere nano material and preparation and application thereof | |
| CN102916188B (en) | Preparation method of hierarchical porous carbon/organo polysulfide/polyaniline composite material | |
| CN117239102A (en) | Sodium ion battery positive electrode material, preparation method thereof and sodium ion battery | |
| SHI et al. | PVDF− HFP binder for advanced zinc− manganese batteries |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |