CN202189864U - Positive electrode piece of high-capacity lithium iron phosphate type lithium ion cell - Google Patents
Positive electrode piece of high-capacity lithium iron phosphate type lithium ion cell Download PDFInfo
- Publication number
- CN202189864U CN202189864U CN2011203216654U CN201120321665U CN202189864U CN 202189864 U CN202189864 U CN 202189864U CN 2011203216654 U CN2011203216654 U CN 2011203216654U CN 201120321665 U CN201120321665 U CN 201120321665U CN 202189864 U CN202189864 U CN 202189864U
- Authority
- CN
- China
- Prior art keywords
- active material
- iron phosphate
- lithium
- material coating
- lithium ion
- 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.)
- Expired - Fee Related
Links
Images
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 utility model discloses a positive electrode piece of a high-capacity lithium iron phosphate type lithium ion cell. The positive electrode piece comprises double positive electrode active material coatings, a current collector and a lug, wherein the double positive electrode active material coatings consist of two nano lithium iron phosphate positive electrode active material coatings; one nano lithium iron phosphate positive electrode active material coating is coated on the current collector; the other nano lithium iron phosphate positive electrode active material coating is coated on the nano lithium iron phosphate positive electrode active material coating; and the lug is spot-welded on a reserved blank of the current collector. The current collector is made of an aluminum foil or a nickel foil or a nickel plating stainless steel foil; and the lug is made of a metal nickel strap or a nickel plating steel strap. The lithium iron phosphate type lithium ion cell manufactured by using the positive electrode piece has high capacity and high multiplying power, i.e. the quick large-current charging and discharging effect is good; the discharging capacity of the lithium ion cell can be effectively increased, the large-current discharging effect of the lithium ion cell is enhanced, and the service life of the lithium ion cell is effectively prolonged.
Description
Technical field
It is that battery is made the field that the utility model relates to chemical power source, is specifically related to a kind of high-capacity lithium ion cell ferric phosphate lithium type anode pole piece, is applicable to the high-capacity lithium ion cell of making various models.
Background technology
The anode slice of lithium ion battery of the present industrial various models of lithium ion battery, the structure of the anode pole piece of employing all is such: the positive active material individual layer single face of larger particles particle diameter (micron order) or individual layer double-coated are on plus plate current-collecting body; It also is cobalt acid lithium or ternary material or LiFePO4 mostly that anode pole piece is produced used positive active material; Used conductive agent is that graphite, solvent agent are NMP (N-methyl pyrrolidone) and other additive mixing manufacture form slurry; Slurry is coated on the aluminum foil current collector through sizing technique, again through drying, compressing tablet, cut, put the lug of burn-oning and make based lithium-ion battery positive plate.Because the positive active material coating of using is the active material individual layer overlay single particle size scope, that particle is thicker; Bonding degree heterogeneity between positive active material and the collector; Bonding insecure, thus cause battery in use positive active material come off or the electrode electro Chemical course of reaction consistent, thereby make the capacity of battery reduce rapidly; Cycle life sharply shortens, even owing to serious shedding makes battery short circuit scrap.In addition; Because it all is that particle diameter is micron-sized cobalt acid lithium or ternary material or LiFePO4 that existing lithium ion battery is produced used positive active material; Its slurry can only adopt existing lithium ion cell positive to make used, so-called individual layer " coating " technology; Because grain diameter is thicker; Except adhering to the insecure defective with plus plate current-collecting body, the also big and heterogeneity of the porosity of electrode active material coating is unfavorable for wetting, the absorption of electrolyte; Electrode capacity and battery capacity are restricted; Simultaneously, with particle diameter be that the lithium ion battery of micron-sized cobalt acid lithium or ternary material or the production of iron phosphate lithium positive pole active material exists that specific capacity is low, shortcoming such as heavy-current discharge weak effect and cycle life are short, be difficult to satisfy the requirement to the big electric current of power-type lithium ion battery, fast charging and discharging such as high-power electric instrument, electric powered motor.
The utility model content
In order to solve the above-mentioned subject matter that exists in the prior art, the utility model provides a kind of high power capacity ferric phosphate lithium type anode slice of lithium ion battery.High, the high magnification of the ferric phosphate lithium type capacity of lithium ion battery made from described anode pole piece; Be the effective of big electric current fast charging and discharging; Can improve more effectively lithium ion battery discharge capacity, improved the heavy-current discharge effect of lithium ion battery, and prolong the useful life of lithium ion battery effectively.
The utility model is achieved through following technical proposals:
A kind of high power capacity ferric phosphate lithium type anode slice of lithium ion battery; Positive active material coating (thinner nano-grade lithium iron phosphate positive active material coating, thicker nano-grade lithium iron phosphate positive active material coating), collector and lug constitute, and are reserved with the reservation blank of being convenient to the spot welding lug at an end of collector and the position of design.It is characterized in that: the positive active material coating is made up of nano-grade lithium iron phosphate positive active material coating, nano-grade lithium iron phosphate positive active material coating; Nano-grade lithium iron phosphate positive active material coating is coated on the collector; Nano-grade lithium iron phosphate positive active material coating is coated on the nano-grade lithium iron phosphate positive active material coating, and lug is welded to the reservation blank space of collector.
Lug (monopole ear or multipole ear are selected 1～5 lug according to the size of pole piece or the size of capacity) is welded to the reservation blank space of collector through spot-welding technology.
Described collector is made by the aluminium foil of thickness 0.01～0.15mm or nickel foil or the nickel plating stainless steel foil forms.
Described positive active material slurry is prepared by following steps: with particle diameter is that (be called for short: Super-C) conductive agent, Kynoar (PVDF) binding agent and N-methyl pyrrolidone (NMP) solvent are the mixed of 80～100:3～8:3～8:80 ~ 150 by mass ratio less than the carbon black of 30nm with particle diameter respectively for the lithium-iron phosphate active material of 1～20nm and lithium-iron phosphate active material that particle diameter is 20～200nm; Ball milling is 0.5～6 hour under the condition of vacuum or nitrogen protection; Mix, process and process the positive active material slurry respectively.
The positive active material slurry that the LiFePO4 that is 1～20nm with above-mentioned use particle diameter makes; Adopt painting process single face or double-coated in the collection liquid surface of thickness 0.01～0.15mm; Through the oven dry down of 60～95 ℃ of temperature conditions, to roll extrusion system thickness is 0.065～0.25mm; Promptly on collector, form ground floor positive active material coating, process elementary anode pole piece.
The positive active material slurry that the LiFePO4 that is 20～200nm with above-mentioned use particle diameter makes; Adopt painting process single face or double-coated in processing elementary anode pole piece surface; Through the oven dry down of 60～95 ℃ of temperature conditions, to roll extrusion system thickness is 0.085～0.55mm, promptly on collector, forms second layer positive active material coating.
At last, be of a size of the pole piece of 300～1200 * 25.0～200mm, the reservation blank parts of lug 1～5 on the collector of pole piece that spot welding length is 25.0～350mm, promptly get high-capacity lithium ion cell ferric phosphate lithium type anode pole piece through section, cutting.Described lug is that metal nickel strap or the nickel plated steel strip of 0.05～0.5mm is made by thickness.
Adopt the technical scheme of the utility model, can obtain following significantly beneficial effect:
Adopt the high power capacity ferric phosphate lithium type anode slice of lithium ion battery of the utility model, the ferric phosphate lithium type lithium ion battery of being produced is owing to adopted the bilayer coating structural design of the prepared slurry of the nano-grade lithium iron phosphate positive active material of novel different-grain diameter; Adhere to more firmly between positive active material coating and the collector, the porosity of two-layer coating layer of active substance is also incomplete same, and ground floor (1a) active material particle is less; Porosity is lower, between positive active material and the conductive agent contact and with collector between contact more closely, help combining between enhanced activity material and the collector; The electric conductivity that helps intensifier electrode, the second layer (1b) active material particle is thicker, and porosity is higher; Help electrolyte permeability to electrode interior; Also can effectively improve the conductance of anode pole piece, simultaneously, because bonding comparatively firm between more tiny active material of ground floor particle and the collector; Can reduce shedding, scaling (coating layer of active substance becomes block to come off) phenomenon effectively; That can improve positive active material effectively effectively attaches the material amount, and active material combines more firm with collector, the adhesive force of enhanced activity material on collector; Not only effectively improved the specific discharge capacity and the capacity of the Ni-MH battery of manufacturing, and improved greatly the life-span that recycles of battery.Used specific discharge capacity is higher, electric conductivity is good nano-grade lithium iron phosphate as positive active material simultaneously; Thereby improve the specific discharge capacity and the heavy-current discharge effect of lithium ion battery more effectively; Discharge and recharge under the condition at 10～30C of high magnification and ultra-high magnifications; The highest specific discharge capacity of lithium-iron phosphate active material is all above 100mAh/g, and the discharge curve platform has higher discharge voltage; Simultaneously; Owing to added a certain proportion of nano carbon black (Super-C) conductive agent in the positive active material; And it is anodal to have adopted double-deck coating technique respectively to make, and when having increased anodal electric conductivity, further strengthens and improved the heavy-current discharge efficient of lithium ion battery; Owing to used height ratio capacity, high conduction performance nano-grade lithium iron phosphate simultaneously; Make manufacturing the ferric phosphate lithium type lithium ion battery recycle the life-span significant prolongation, the ferric phosphate lithium type electrode pad set of making is dressed up high power capacity, big electric current lithium ion battery, 10～30C than the high power charging-discharging condition under; The cycle life of battery (discharge capacity less than design capacity 65% time charge and discharge cycles number of times) is all above 700 times, the highest surpassing 856 times.
The utility model is applicable to cylindrical, the rectangular lithium ion battery and the lithium ion powered battery of all kinds, various models.
Description of drawings
Fig. 1 is a kind of schematic perspective view of anode pole piece of high power capacity ferric phosphate lithium type lithium ion battery monopole ear single face coating;
Fig. 2 is the schematic side view of the ear anode pole piece of the bipolar ear single face coating of a kind of high power capacity ferric phosphate lithium type lithium ion battery;
Fig. 3 is the schematic side view of the anode pole piece of these a kind of high power capacity ferric phosphate lithium type lithium ion battery three lug double spreads;
Fig. 4 is a kind of schematic side view of anode pole piece of high power capacity ferric phosphate lithium type lithium ion battery four lug double spreads;
The schematic side view of the anode pole piece of this a kind of high power capacity ferric phosphate lithium type lithium ion battery five lug single faces coating of Fig. 5.
Description of reference numerals:
The nano-grade lithium iron phosphate positive active material coating that nano-grade lithium iron phosphate positive active material coating, the 1b-that 1-positive active material coating: 1a-is thinner is thicker; The 2-collector; The 3-lug; 4-reserves blank space.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is done further to describe in detail.
Referring to accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4 and accompanying drawing 5; A kind of high power capacity ferric phosphate lithium type anode slice of lithium ion battery; (be respectively the positive active material slurry that 1～20nm, 20～200nm) materials such as nano-grade lithium iron phosphate, conductive agent, binding agent and solvent are made into by different-grain diameter; Be coated on collection liquid surface through twice painting process; After oven dry, roll extrusion and positive active material coating 1 (thinner nano-grade lithium iron phosphate positive active material coating 1a, thicker nano-grade lithium iron phosphate positive active material coating 1b), collector 2 and the lug 3 of double-deck coating constitutes, be reserved with the reservation blank 4 of being convenient to spot welding lug 3 at an end of collector 2 and the position of design.It is made up of nano-grade lithium iron phosphate positive active material coating 1a, nano-grade lithium iron phosphate positive active material coating 1b, collector 2 and lug 3; It is characterized in that: positive active material coating 1 is made up of nano-grade lithium iron phosphate positive active material coating 1a, nano-grade lithium iron phosphate positive active material coating 1b; Nano-grade lithium iron phosphate positive active material coating 1a is coated on the collector 2; Nano-grade lithium iron phosphate positive active material coating 1b is coated on the nano-grade lithium iron phosphate positive active material coating 1a, and lug 3 is welded to blank 4 places of reservation of collector 2.
Described positive active material coating 1 is made up of the nano-grade lithium iron phosphate positive active material coating 1a of small particle diameter 1～20nm and the nano-grade lithium iron phosphate positive active material coating 1b of particle diameter 20～200nm respectively.
Described collector 2 is processed by aluminium foil, nickel foil or nickel plating stainless steel foil.
The number of described lug 3 is 1～5.
Described lug (3) is processed by metal nickel strap or nickel plated steel strip.
Described collector is made by aluminium foil or the nickel foil of thickness 0.01～0.15mm.
Described positive active material slurry is prepared by following steps: with particle diameter is that (be called for short: Super-C) conductive agent, Kynoar (PVDF) binding agent and N-methyl pyrrolidone (NMP) solvent are the mixed of 80～100:3～8:3～8:80 ~ 150 by mass ratio less than the carbon black of 30nm with particle diameter respectively for the lithium-iron phosphate active material of 1～20nm and lithium-iron phosphate active material that particle diameter is 20～200nm; Ball milling is 0.5～6 hour under the condition of vacuum or nitrogen protection; Mix, process and process nano-grade lithium iron phosphate positive active material coating 1a, nano-grade lithium iron phosphate positive active material coating 1b respectively.
The nano-grade lithium iron phosphate positive active material coating 1a that above-mentioned LiFePO4 about using particle diameter as 10nm is made; Adopt painting process single face or double-coated in collector 2 surfaces of thickness 0.025mm; Through the oven dry down of 60～95 ℃ of temperature conditions, to roll extrusion system thickness is 0.10mm; Promptly on collector, form ground floor nano-grade lithium iron phosphate positive active material coating 1a, process elementary anode pole piece.
The nano-grade lithium iron phosphate positive active material coating 1b that above-mentioned LiFePO4 about using particle diameter as 100nm is made; Adopt painting process single face or double-coated in processing elementary anode pole piece surface; Through the oven dry down of 60～95 ℃ of temperature conditions, to roll extrusion system thickness is 0.25mm, promptly on collector, forms second layer nano-grade lithium iron phosphate positive active material coating 1b.
At last; Pole piece (accompanying drawing 1), the spot welding length that is of a size of 800 * 200mm through section, cutting is 200,235,230, the reservation blank parts of four or five lugs on the collector of pole piece of 225mm, promptly gets high-capacity lithium ion cell ferric phosphate lithium type anode pole piece (accompanying drawing 2, accompanying drawing 4).Described lug is that metal nickel strap or the nickel plated steel strip of 0.20mm is made by thickness.Described lug 3 is by metal nickel strap or nickel plated steel strip be made (accompanying drawing lug 3 is 1～5); Be assembled into the ferric phosphate lithium type lithium ion battery of the big electric current of high power capacity; Under 10～30C rate charge-discharge condition (charging voltage is lower than 4.2V, final discharging voltage 2.5V), the cycle life of the lithium ion battery of manufacturing (discharge capacity less than design capacity 65% time charge and discharge cycles number of times) is all above 700 times.
Yet therefore the preferred embodiment that the above is merely the utility model is not and the protection range of limitation the utility model that the equivalence that all utilization the utility model description are carried out changes, and all is included in the scope of the utility model.
Claims (5)
1. high power capacity ferric phosphate lithium type anode slice of lithium ion battery; Constitute by positive active material coating (1), collector (2), lug (3); It is characterized in that: positive active material coating (1) is made up of nano-grade lithium iron phosphate positive active material coating (1a), nano-grade lithium iron phosphate positive active material coating (1b); Nano-grade lithium iron phosphate positive active material coating (1a) is coated on the collector (2); Nano-grade lithium iron phosphate positive active material coating (1b) is coated on the nano-grade lithium iron phosphate positive active material coating (1a), and lug (3) is welded to the reservation blank (4) of collector (2) and locates.
2. a kind of high power capacity ferric phosphate lithium type anode slice of lithium ion battery according to claim 1 is characterized in that: the lithium-iron phosphate active material coating (1a) of described positive active material coating (1) difference particle diameter 1～20nm and the lithium-iron phosphate active material coating (1b) of particle diameter 20～200nm constitute.
3. a kind of high power capacity ferric phosphate lithium type anode slice of lithium ion battery according to claim 1, it is characterized in that: described collector (2) is processed by aluminium foil, nickel foil or nickel plating stainless steel foil.
4. a kind of high power capacity ferric phosphate lithium type anode slice of lithium ion battery according to claim 1, it is characterized in that: the number of described lug (3) is 1～5.
5. a kind of high power capacity ferric phosphate lithium type anode slice of lithium ion battery according to claim 1, it is characterized in that: described lug (3) is processed by metal nickel strap or nickel plated steel strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203216654U CN202189864U (en) | 2011-08-30 | 2011-08-30 | Positive electrode piece of high-capacity lithium iron phosphate type lithium ion cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203216654U CN202189864U (en) | 2011-08-30 | 2011-08-30 | Positive electrode piece of high-capacity lithium iron phosphate type lithium ion cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189864U true CN202189864U (en) | 2012-04-11 |
Family
ID=45921299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203216654U Expired - Fee Related CN202189864U (en) | 2011-08-30 | 2011-08-30 | Positive electrode piece of high-capacity lithium iron phosphate type lithium ion cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189864U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306777A (en) * | 2011-08-30 | 2012-01-04 | 广州市云通磁电有限公司 | Positive electrode sheet of lithium iron phosphate type lithium ion battery, and preparation method thereof |
| CN107579227A (en) * | 2017-08-31 | 2018-01-12 | 北方奥钛纳米技术有限公司 | Preparation method, silicon-carbon cathode piece and the lithium ion battery of silicon-carbon cathode piece |
| CN108352502A (en) * | 2016-03-16 | 2018-07-31 | 株式会社Lg化学 | Electrode with double-layer structure and its manufacturing method |
| CN109088050A (en) * | 2018-06-26 | 2018-12-25 | 宁德新能源科技有限公司 | Pole piece and its lithium ion battery |
| CN109937499A (en) * | 2016-11-04 | 2019-06-25 | 三星Sdi株式会社 | Positive electrode for lithium secondary battery and the lithium secondary battery including it |
| CN110249456A (en) * | 2016-11-07 | 2019-09-17 | 日产自动车株式会社 | Lithium ion battery anode and lithium ion battery |
| CN110603668A (en) * | 2017-05-31 | 2019-12-20 | 松下知识产权经营株式会社 | Positive electrode for secondary battery and secondary battery |
| CN110660965A (en) * | 2019-08-29 | 2020-01-07 | 孚能科技(赣州)股份有限公司 | Negative plate and preparation method thereof, lithium ion battery and preparation method and application thereof |
| CN113036085A (en) * | 2021-03-26 | 2021-06-25 | 湖北亿纬动力有限公司 | Positive pole piece and preparation method and application thereof |
| CN115275109A (en) * | 2022-08-23 | 2022-11-01 | 湖北亿纬动力有限公司 | Long-cycle lithium iron phosphate thick electrode, preparation method thereof and lithium ion battery |
-
2011
- 2011-08-30 CN CN2011203216654U patent/CN202189864U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306777A (en) * | 2011-08-30 | 2012-01-04 | 广州市云通磁电有限公司 | Positive electrode sheet of lithium iron phosphate type lithium ion battery, and preparation method thereof |
| CN108352502B (en) * | 2016-03-16 | 2021-09-24 | 株式会社Lg化学 | Electrode having double-layer structure and method for manufacturing same |
| CN108352502A (en) * | 2016-03-16 | 2018-07-31 | 株式会社Lg化学 | Electrode with double-layer structure and its manufacturing method |
| CN109937499A (en) * | 2016-11-04 | 2019-06-25 | 三星Sdi株式会社 | Positive electrode for lithium secondary battery and the lithium secondary battery including it |
| US11296323B2 (en) | 2016-11-04 | 2022-04-05 | Samsung Sdi Co., Ltd. | Positive electrode for lithium secondary battery and lithium secondary battery comprising same |
| CN110249456A (en) * | 2016-11-07 | 2019-09-17 | 日产自动车株式会社 | Lithium ion battery anode and lithium ion battery |
| CN110249456B (en) * | 2016-11-07 | 2022-06-14 | 日产自动车株式会社 | Positive electrode for lithium ion battery and lithium ion battery |
| CN110603668A (en) * | 2017-05-31 | 2019-12-20 | 松下知识产权经营株式会社 | Positive electrode for secondary battery and secondary battery |
| CN107579227A (en) * | 2017-08-31 | 2018-01-12 | 北方奥钛纳米技术有限公司 | Preparation method, silicon-carbon cathode piece and the lithium ion battery of silicon-carbon cathode piece |
| CN109088050A (en) * | 2018-06-26 | 2018-12-25 | 宁德新能源科技有限公司 | Pole piece and its lithium ion battery |
| CN109088050B (en) * | 2018-06-26 | 2021-02-02 | 宁德新能源科技有限公司 | Pole piece and lithium ion battery thereof |
| CN110660965B (en) * | 2019-08-29 | 2021-12-17 | 孚能科技(赣州)股份有限公司 | Negative plate and preparation method thereof, lithium ion battery and preparation method and application thereof |
| CN110660965A (en) * | 2019-08-29 | 2020-01-07 | 孚能科技(赣州)股份有限公司 | Negative plate and preparation method thereof, lithium ion battery and preparation method and application thereof |
| CN113036085A (en) * | 2021-03-26 | 2021-06-25 | 湖北亿纬动力有限公司 | Positive pole piece and preparation method and application thereof |
| CN115275109A (en) * | 2022-08-23 | 2022-11-01 | 湖北亿纬动力有限公司 | Long-cycle lithium iron phosphate thick electrode, preparation method thereof and lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202189864U (en) | Positive electrode piece of high-capacity lithium iron phosphate type lithium ion cell | |
| CN102306777A (en) | Positive electrode sheet of lithium iron phosphate type lithium ion battery, and preparation method thereof | |
| CN101425605B (en) | Nickel-cobalt lithium manganate high power lithium ionic cell | |
| CN107978732B (en) | Pole piece and battery | |
| CN102386379A (en) | Manufacturing method of lithium iron phosphate-cobalt acid lithium composite anode plate of lithium ion battery | |
| CN104659332B (en) | High-magnification lithium iron phosphate battery positive electrode and manufacturing method thereof | |
| CN105406033A (en) | Cathode Mixture, Cathode, Solid Battery And Method For Producing Cathode Mixture, Cathode And Solid Battery | |
| CN203746972U (en) | Positive electrode plate | |
| CN101867037A (en) | Iron-phosphate-based lithium-ion battery positive plate and preparation method thereof | |
| CN108172767A (en) | A kind of lithium ion battery electrode piece and preparation method thereof | |
| CN105552302A (en) | Foldable sulfur cathode composite electrode structure | |
| CN105742695A (en) | Lithium-ion battery and preparation method thereof | |
| CN106602069A (en) | Lithium ion battery positive electrode material, positive electrode and lithium ion battery | |
| CN202268433U (en) | Lithium iron phosphate and lithium cobaltate composite positive pole sheet of lithium ion battery | |
| CN101165947A (en) | Carbon nanometer composite nickel-hydrogen power battery cathode sheet preparation method and its uses | |
| CN116825962A (en) | Sodium ion battery composite negative electrode, battery and preparation method of negative electrode | |
| CN111129425A (en) | Lithium ion battery thick pole piece and preparation method thereof | |
| CN102593524A (en) | Manufacturing method of orthohexagonal lithium ion battery cell | |
| CN201773894U (en) | Special nickel hydroxide positive plate for SC type nickel-metal hydride batteries | |
| WO2016045622A1 (en) | Battery, battery pack and continuous power supply | |
| CN105489839A (en) | Copper-silicon negative electrode and preparation method therefor | |
| CN108963241B (en) | Battery, battery pack and uninterruptible power supply | |
| CN101752546A (en) | Preparation method of iron phosphate lithium electrode | |
| CN102544453A (en) | Method for manufacturing anode special for nickel-hydrogen power battery | |
| CN102054979B (en) | A kind of battery electrode, its preparation method and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20140830 |
|
| EXPY | Termination of patent right or utility model |