CN109728271A - A kind of negative electrodes for lithium batteries for sweeper - Google Patents
A kind of negative electrodes for lithium batteries for sweeper Download PDFInfo
- Publication number
- CN109728271A CN109728271A CN201811557619.7A CN201811557619A CN109728271A CN 109728271 A CN109728271 A CN 109728271A CN 201811557619 A CN201811557619 A CN 201811557619A CN 109728271 A CN109728271 A CN 109728271A
- Authority
- CN
- China
- Prior art keywords
- parts
- sweeper
- negative electrodes
- lithium batteries
- carbon black
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of negative electrodes for lithium batteries for sweeper, including following raw material: lignin, polyethylene glycol oxide, dimethylformamide, sulfide electrolyte, solvent, electrode active material, agar powder and nano carbon black, with excellent electrochemistry cycle performance, capacity retention ratio numerical value is larger after 100 weeks circulations, improve battery, it can be seen that polyethylene glycol oxide can be improved electrochemistry cycle performance from experimental result, improve battery, agar powder and nano carbon black can be improved the conductivity of battery electrode piece, improve the electric conductivity of battery.
Description
Technical field
The present invention relates to a kind of negative electrodes for lithium batteries, specifically a kind of negative electrodes for lithium batteries for sweeper.
Background technique
It by lithium metal or lithium alloy is negative electrode material, using the battery of non-aqueous electrolytic solution that lithium battery, which is a kind of,.1912
Year lithium metal battery is proposed and is studied by Gilbert N.Lewis earliest.When the 1970s, M.S.Whittingham is mentioned
Out and the lithium ion battery that begins one's study.Since the chemical characteristic of lithium metal is very active, so that the processing of lithium metal, saving, making
With, it is very high to environmental requirement, so lithium battery is not applied for a long time.With the development of science and technology, present lithium battery
Have become mainstream.
Lithium battery is broadly divided into two classes: lithium metal battery and lithium ion battery.Lithium ion battery is without containing metallic state
Lithium, and can charge.5th generation product lithium metal battery of rechargeable battery was born in 1996, safety, ratio
Capacity, self-discharge rate and the ratio of performance to price are superior to lithium ion battery.Since the high-tech of its own requires limitation, now only
The company of a few countries is producing this lithium metal battery.
Usually there are two types of external forms for lithium battery: cylindrical type and square.Inside battery uses helically wound structures, very with one kind
It is fine and the very strong polyethylene film isolated material of permeability is formed in positive and negative pole spacing.Anode includes by cobalt acid lithium (or nickel
Cobalt manganic acid lithium, LiMn2O4, LiFePO 4 etc.) and aluminium foil composition current collector.Cathode is by graphitized carbon material and copper foil
The current collector of composition forms.Filled with organic electrolyte solution in battery.In addition safety valve and PTC element (part are also equipped with
Column type use), so that battery protects the battery from damage in abnormal state and output short-circuit.
Include anode pole piece and cathode pole piece in lithium ion battery, is coated on the anode pole piece and cathode pole piece by gluing
Knot agent, conductive agent and electrode active material mix preparation-obtained electrocondution slurry in certain proportion.In traditional technology, lithium
Ion battery uses graphite as the active material of cathode more, but the theoretical specific capacity of graphite is lower, only 372mAh/g, difficult
To meet the growing requirement to battery capacity in market, developing new negative electrode material system becomes becoming for a certainty
Gesture.
Summary of the invention
The purpose of the present invention is to provide a kind of negative electrodes for lithium batteries for sweeper, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of negative electrodes for lithium batteries for sweeper, including below according to the raw material of parts by weight: 5-15 parts of lignin gathers
6-12 parts of ethylene oxide, 4-8 parts of dimethylformamide, 10-20 parts of sulfide electrolyte, 20-40 parts of solvent, electrode active material
8-18 parts, 6-12 parts of agar powder and 10-28 parts of nano carbon black.
As a further solution of the present invention: including below according to the raw material of parts by weight: 8-12 parts of lignin, polyoxyethylene
7-10 parts of alkene, 6-8 parts of dimethylformamide, 15-18 parts of sulfide electrolyte, 25-35 parts of solvent, electrode active material 10-16
Part, 8-10 parts of agar powder and 15-20 parts of nano carbon black.
As further scheme of the invention: including below according to the raw material of parts by weight: 10 parts of lignin, polyoxyethylene
8 parts of alkene, 7 parts of dimethylformamide, 15 parts of sulfide electrolyte, 30 parts of solvent, 15 parts of electrode active material, 9 parts of agar powder and
18 parts of nano carbon black.
As the present invention further scheme: the electrode active material be selected from sulfide, oxide, carbon group material or
One of phosphide.
As further scheme of the invention: the solvent is selected from ethyl alcohol, acetonitrile, methanol, dimethyl carbonate, acetic acid second
Ester and n-hexane it is one or more.
A kind of preparation method of the negative electrodes for lithium batteries for sweeper, comprising the following steps:
1) lignin, polyethylene glycol oxide, dimethylformamide, is taken uniformly to mix to obtain mixed solution A, hybrid reaction with solvent
Temperature be 50-70 DEG C, time of hybrid reaction is 12-14h；
2) electrode active material and sulfide electrolyte, are added into mixed solution A, is warming up to 120-140 DEG C, stirring is mixed
It closes 1-2h and obtains precursor solution B；
3), agar powder and nano carbon black are added in precursor solution B, are persistently stirred in heating process, until mixing
Object viscosity stops when being 2000-3000cp, obtains mixed liquor C；
4) dry after, filtering mixed liquor C, precursor powder D is obtained, drying temperature is 60-80 DEG C, drying time 6-
8h；
5) precursor powder D is sintered 1-2 hours at a temperature of 500-600 DEG C under inert atmosphere protection, is used for
The negative electrodes for lithium batteries of sweeper.
A kind of negative electrodes for lithium batteries for sweeper is preparing the application in battery product.
Compared with prior art, the beneficial effects of the present invention are: the lithium battery negative electricity prepared by the present invention for sweeper
Pole, including following raw material: lignin, polyethylene glycol oxide, dimethylformamide, sulfide electrolyte, solvent, electrode activity material
Material, agar powder and nano carbon black have excellent electrochemistry cycle performance, and capacity retention ratio numerical value is larger after 100 weeks circulations,
Battery is improved, it can be seen that polyethylene glycol oxide can be improved electrochemistry cycle performance from experimental result, improves electricity
Pond service life, agar powder and nano carbon black can be improved the conductivity of battery electrode piece, improve the electric conductivity of battery.
Specific embodiment
Technical solution of the present invention is described in more detail With reference to embodiment.
Embodiment 1
A kind of negative electrodes for lithium batteries for sweeper, including below according to the raw material of parts by weight: 5 parts of lignin, polyoxy
Change 6 parts of ethylene, 4 parts of dimethylformamide, 10 parts of sulfide electrolyte, 20 parts of solvent, 8 parts of electrode active material, 6 parts of agar powder
With 10 parts of nano carbon black.
A kind of preparation method of the negative electrodes for lithium batteries for sweeper, comprising the following steps:
1) lignin, polyethylene glycol oxide, dimethylformamide, is taken uniformly to mix to obtain mixed solution A, hybrid reaction with solvent
Temperature be 50 DEG C, time of hybrid reaction is 12h；
2) electrode active material and sulfide electrolyte, are added into mixed solution A, is warming up to 120 DEG C, is stirred 1-
2h obtains precursor solution B；
3), agar powder and nano carbon black are added in precursor solution B, are persistently stirred in heating process, until mixing
Object viscosity stops when being 2000cp, obtains mixed liquor C；
4) dry after, filtering mixed liquor C, precursor powder D is obtained, drying temperature is 60 DEG C, drying time 6h；
5) precursor powder D is sintered 1 hour at a temperature of 500 DEG C under inert atmosphere protection, is obtained for sweeper
Negative electrodes for lithium batteries.
A kind of negative electrodes for lithium batteries for sweeper is preparing the application in battery product.
Embodiment 2
A kind of negative electrodes for lithium batteries for sweeper, including below according to the raw material of parts by weight: 15 parts of lignin, polyoxy
Change 12 parts of ethylene, 8 parts of dimethylformamide, 20 parts of sulfide electrolyte, 40 parts of solvent, 18 parts of electrode active material, agar powder
12 parts and 28 parts of nano carbon black.
A kind of preparation method of the negative electrodes for lithium batteries for sweeper, comprising the following steps:
1) lignin, polyethylene glycol oxide, dimethylformamide, is taken uniformly to mix to obtain mixed solution A, hybrid reaction with solvent
Temperature be 70 DEG C, time of hybrid reaction is 14h；
2) electrode active material and sulfide electrolyte, are added into mixed solution A, is warming up to 140 DEG C, is stirred 2h
Obtain precursor solution B；
3), agar powder and nano carbon black are added in precursor solution B, are persistently stirred in heating process, until mixing
Object viscosity stops when being 3000cp, obtains mixed liquor C；
4) dry after, filtering mixed liquor C, precursor powder D is obtained, drying temperature is 80 DEG C, drying time 8h；
5) precursor powder D is sintered 2 hours at a temperature of 600 DEG C under inert atmosphere protection, is obtained for sweeper
Negative electrodes for lithium batteries.
A kind of negative electrodes for lithium batteries for sweeper is preparing the application in battery product.
Embodiment 3
A kind of negative electrodes for lithium batteries for sweeper, including below according to the raw material of parts by weight: 8 parts of lignin, polyoxy
Change 7 parts of ethylene, 6 parts of dimethylformamide, 15 parts of sulfide electrolyte, 25 parts of solvent, 10 parts of electrode active material, agar powder 8
Part and 15 parts of nano carbon black.
A kind of preparation method of the negative electrodes for lithium batteries for sweeper, comprising the following steps:
1) lignin, polyethylene glycol oxide, dimethylformamide, is taken uniformly to mix to obtain mixed solution A, hybrid reaction with solvent
Temperature be 50 DEG C, time of hybrid reaction is 12h；
2) electrode active material and sulfide electrolyte, are added into mixed solution A, is warming up to 120 DEG C, is stirred 1-
2h obtains precursor solution B；
3), agar powder and nano carbon black are added in precursor solution B, are persistently stirred in heating process, until mixing
Object viscosity stops when being 2000cp, obtains mixed liquor C；
4) dry after, filtering mixed liquor C, precursor powder D is obtained, drying temperature is 60 DEG C, drying time 6h；
5) precursor powder D is sintered 1 hour at a temperature of 500 DEG C under inert atmosphere protection, is obtained for sweeper
Negative electrodes for lithium batteries.
A kind of negative electrodes for lithium batteries for sweeper is preparing the application in battery product.
Embodiment 4
A kind of negative electrodes for lithium batteries for sweeper, including below according to the raw material of parts by weight: 2 parts of lignin, polyoxy
Change 10 parts of ethylene, 8 parts of dimethylformamide, 18 parts of sulfide electrolyte, 35 parts of solvent, 16 parts of electrode active material, agar powder
10 parts and 20 parts of nano carbon black.
A kind of preparation method of the negative electrodes for lithium batteries for sweeper, comprising the following steps:
1) lignin, polyethylene glycol oxide, dimethylformamide, is taken uniformly to mix to obtain mixed solution A, hybrid reaction with solvent
Temperature be 70 DEG C, time of hybrid reaction is 14h；
2) electrode active material and sulfide electrolyte, are added into mixed solution A, is warming up to 140 DEG C, is stirred 2h
Obtain precursor solution B；
3), agar powder and nano carbon black are added in precursor solution B, are persistently stirred in heating process, until mixing
Object viscosity stops when being 3000cp, obtains mixed liquor C；
4) dry after, filtering mixed liquor C, precursor powder D is obtained, drying temperature is 80 DEG C, drying time 8h；
5) precursor powder D is sintered 2 hours at a temperature of 600 DEG C under inert atmosphere protection, is obtained for sweeper
Negative electrodes for lithium batteries.
A kind of negative electrodes for lithium batteries for sweeper is preparing the application in battery product.
Embodiment 5
A kind of negative electrodes for lithium batteries for sweeper, including below according to the raw material of parts by weight: 10 parts of lignin, polyoxy
Change 8 parts of ethylene, 7 parts of dimethylformamide, 15 parts of sulfide electrolyte, 30 parts of solvent, 15 parts of electrode active material, agar powder 9
Part and 18 parts of nano carbon black.
A kind of preparation method of the negative electrodes for lithium batteries for sweeper, comprising the following steps:
1) lignin, polyethylene glycol oxide, dimethylformamide, is taken uniformly to mix to obtain mixed solution A, hybrid reaction with solvent
Temperature be 60 DEG C, time of hybrid reaction is 12h；
2) electrode active material and sulfide electrolyte, are added into mixed solution A, is warming up to 120 DEG C, is stirred 2h
Obtain precursor solution B；
3), agar powder and nano carbon black are added in precursor solution B, are persistently stirred in heating process, until mixing
Object viscosity stops when being 3000cp, obtains mixed liquor C；
4) dry after, filtering mixed liquor C, precursor powder D is obtained, drying temperature is 70 DEG C, drying time 7h；
5) precursor powder D is sintered 2 hours at a temperature of 600 DEG C under inert atmosphere protection, is obtained for sweeper
Negative electrodes for lithium batteries.
A kind of negative electrodes for lithium batteries for sweeper is preparing the application in battery product.
Comparative example 1
Compared with Example 5, lignin is free of, other are same as Example 5.
Comparative example 2
Compared with Example 5, lignin and polyethylene glycol oxide are free of, other are same as Example 5.
Comparative example 3
Compared with Example 5, agar powder and nano carbon black are free of, other are same as Example 5.
Comparative example 4
Compared with Example 5, without polyethylene glycol oxide and agar powder and nano carbon black, other are same as Example 5.
Test experiments
Under argon atmosphere protection, the negative electrodes for lithium batteries for being used for sweeper is applied in solid lithium battery, by this
Battery carries out charge-discharge test at 50mA/g, test voltage 1.2V, under 0.1A/g multiplying power button point test condition, embodiment
Test result is as follows table:
Test experiments table
According to test experiments result it is found that the negative electrodes for lithium batteries prepared by the present invention for sweeper electricity with higher
Conductance, while there is excellent electrochemistry cycle performance, capacity retention ratio numerical value is larger after 100 weeks circulations, and improving battery makes
With the service life, it can be seen that polyethylene glycol oxide can be improved electrochemistry cyclicity from the data comparison of embodiment 5 and comparative example 1-4
Can, battery is improved, agar powder and nano carbon black can be improved the conductivity of battery electrode piece, improve the conduction of battery
Performance.
Negative electrodes for lithium batteries prepared by the present invention for sweeper, including following raw material: lignin, polyethylene glycol oxide,
Dimethylformamide, sulfide electrolyte, solvent, electrode active material, agar powder and nano carbon black have excellent electrochemistry
Cycle performance, capacity retention ratio numerical value is larger after 100 weeks circulations, improves battery, can from experimental result
Polyethylene glycol oxide can be improved electrochemistry cycle performance out, improve battery, agar powder and nano carbon black can be improved
The conductivity of battery electrode piece improves the electric conductivity of battery.
Better embodiment of the invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (7)
1. a kind of negative electrodes for lithium batteries for sweeper, which is characterized in that including below according to the raw material of parts by weight: lignin
5-15 parts, 6-12 parts of polyethylene glycol oxide, 4-8 parts of dimethylformamide, 10-20 parts of sulfide electrolyte, 20-40 parts of solvent, electricity
Active material 8-18 parts of pole, 6-12 parts of agar powder and 10-28 parts of nano carbon black.
2. the negative electrodes for lithium batteries according to claim 1 for sweeper, which is characterized in that including below according to weight
Part raw material: 8-12 parts of lignin, 7-10 parts of polyethylene glycol oxide, 6-8 parts of dimethylformamide, 15-18 parts of sulfide electrolyte,
25-35 parts of solvent, 10-16 parts of electrode active material, 8-10 parts of agar powder and 15-20 parts of nano carbon black.
3. the negative electrodes for lithium batteries according to claim 1 for sweeper, which is characterized in that including below according to weight
Part raw material: 10 parts of lignin, 8 parts of polyethylene glycol oxide, 7 parts of dimethylformamide, 15 parts of sulfide electrolyte, 30 parts of solvent,
15 parts of electrode active material, 9 parts of agar powder and 18 parts of nano carbon black.
4. the negative electrodes for lithium batteries according to claim 1 to 3 for sweeper, which is characterized in that the electrode active
Property material be selected from one of sulfide, oxide, carbon group material or phosphide.
5. the negative electrodes for lithium batteries according to claim 1 to 3 for sweeper, which is characterized in that the solvent choosing
From the one or more of ethyl alcohol, acetonitrile, methanol, dimethyl carbonate, ethyl acetate and n-hexane.
6. a kind of preparation method of the negative electrodes for lithium batteries a method according to any one of claims 1-3 for sweeper, feature exist
In, comprising the following steps:
1) lignin, polyethylene glycol oxide, dimethylformamide, is taken uniformly to mix to obtain mixed solution A, the temperature of hybrid reaction with solvent
Degree is 50-70 DEG C, and the time of hybrid reaction is 12-14h；
2) electrode active material and sulfide electrolyte, are added into mixed solution A, is warming up to 120-140 DEG C, is stirred 1-
2h obtains precursor solution B；
3), agar powder and nano carbon black are added in precursor solution B, are persistently stirred in heating process, until mixture is viscous
Degree stops when being 2000-3000cp, obtains mixed liquor C；
4) dry after, filtering mixed liquor C, precursor powder D is obtained, drying temperature is 60-80 DEG C, drying time 6-8h；
5) precursor powder D is sintered 1-2 hours at a temperature of 500-600 DEG C under inert atmosphere protection, is obtained for sweeping the floor
The negative electrodes for lithium batteries of machine.
7. negative electrode a method according to any one of claims 1-3 is preparing the application in battery product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557619.7A CN109728271A (en) | 2018-12-19 | 2018-12-19 | A kind of negative electrodes for lithium batteries for sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557619.7A CN109728271A (en) | 2018-12-19 | 2018-12-19 | A kind of negative electrodes for lithium batteries for sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109728271A true CN109728271A (en) | 2019-05-07 |
Family
ID=66296278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811557619.7A Pending CN109728271A (en) | 2018-12-19 | 2018-12-19 | A kind of negative electrodes for lithium batteries for sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109728271A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355871A (en) * | 2015-10-26 | 2016-02-24 | 中国科学院宁波材料技术与工程研究所 | Composite electrode material, preparation method thereof and all-solid-state lithium battery |
| CN107180992A (en) * | 2017-06-09 | 2017-09-19 | 中国科学院宁波材料技术与工程研究所 | A kind of solid lithium battery combination electrode material and preparation method thereof and a kind of solid lithium battery |
| CN107732158A (en) * | 2017-09-06 | 2018-02-23 | 深圳市比克动力电池有限公司 | Lithium ion battery negative electrode preparation method, cathode pole piece and lithium ion battery |
| CN108117365A (en) * | 2017-12-27 | 2018-06-05 | 广州大学 | The preparation method and conductive material of conductive material |
| CN108923031A (en) * | 2018-07-11 | 2018-11-30 | 中国科学院宁波材料技术与工程研究所 | A kind of transient metal sulfide combination electrode material and preparation method thereof and solid lithium battery |
-
2018
- 2018-12-19 CN CN201811557619.7A patent/CN109728271A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355871A (en) * | 2015-10-26 | 2016-02-24 | 中国科学院宁波材料技术与工程研究所 | Composite electrode material, preparation method thereof and all-solid-state lithium battery |
| CN107180992A (en) * | 2017-06-09 | 2017-09-19 | 中国科学院宁波材料技术与工程研究所 | A kind of solid lithium battery combination electrode material and preparation method thereof and a kind of solid lithium battery |
| CN107732158A (en) * | 2017-09-06 | 2018-02-23 | 深圳市比克动力电池有限公司 | Lithium ion battery negative electrode preparation method, cathode pole piece and lithium ion battery |
| CN108117365A (en) * | 2017-12-27 | 2018-06-05 | 广州大学 | The preparation method and conductive material of conductive material |
| CN108923031A (en) * | 2018-07-11 | 2018-11-30 | 中国科学院宁波材料技术与工程研究所 | A kind of transient metal sulfide combination electrode material and preparation method thereof and solid lithium battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105449186B (en) | A kind of secondary cell and preparation method thereof | |
| CN105304936B (en) | A kind of lithium rechargeable battery | |
| CN104795560B (en) | A kind of rich sodium P2 phase layered oxide materials and its production and use | |
| CN103700820B (en) | A kind of lithium ion selenium battery with long service life | |
| CN108417777B (en) | Porous ternary composite positive plate and preparation method and application thereof | |
| CN109411809A (en) | A kind of preparation method of low temperature flexibility solid polyelectrolyte film and its application in low-temperature solid lithium ion battery | |
| CN109167035A (en) | Carbon-coated ferrous sulfide negative electrode material, preparation method and its sodium-ion battery of preparation | |
| CN105845928A (en) | Lithium-ion power battery and preparation method thereof | |
| CN106602009A (en) | Lithium-rich positive electrode modified material of lithium ion battery and preparation method of lithium-rich positive electrode modified material | |
| CN103367791B (en) | A kind of new type lithium ion battery | |
| CN108306016A (en) | A method of cell positive material surface is modified using coupling agent | |
| CN104051720B (en) | A kind of material and its preparation and lithium ion anode active material, positive electrode, anode and battery containing the material | |
| CN108598371A (en) | A kind of flexible solid lithium ion battery composite negative plate and preparation method thereof and the application in solid lithium ion battery | |
| WO2016206548A1 (en) | Preparation method for lithium battery high-voltage modified negative electrode material | |
| CN103928668B (en) | Lithium ion battery and preparation method of anode material thereof | |
| WO2020043151A1 (en) | Positive electrode plate, preparation method therefor, and lithium-ion rechargeable battery | |
| JP2014096238A (en) | Process of manufacturing positive electrode for power storage device and positive electrode | |
| CN108987752A (en) | Positive plate, preparation method thereof and lithium ion battery | |
| CN108807941B (en) | Preparation method and application of iron phosphide nanosheet and biomass carbon composite material | |
| CN101841060A (en) | Lithium ion battery using lithium manganate as anode material | |
| CN104170130A (en) | Cathode active material composition and lithium secondary battery comprising same | |
| CN106784677A (en) | A kind of preparation of lithium-enriched cathodic material of lithium ion battery and improved method | |
| CN108400340A (en) | A kind of lithium ion cell positive, preparation method and lithium ion battery | |
| CN108110254A (en) | The application of ferric phosphate and phosphoric acid iron composite material as cathode in lithium ion battery | |
| CN110024190A (en) | Nonaqueous secondary battery electrode active material and the non-aqueous secondary batteries for using it |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190507 |