CN104577130A - Flexible-packaged high-power lithium iron phosphate power battery - Google Patents
Flexible-packaged high-power lithium iron phosphate power battery Download PDFInfo
- Publication number
- CN104577130A CN104577130A CN201410763920.9A CN201410763920A CN104577130A CN 104577130 A CN104577130 A CN 104577130A CN 201410763920 A CN201410763920 A CN 201410763920A CN 104577130 A CN104577130 A CN 104577130A
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- Prior art keywords
- iron phosphate
- lithium iron
- electrokinetic cell
- high power
- power lithium
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
-
- 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 relates to the technical field of a lithium ion power battery, and particularly relates to a flexible-packaged high-power lithium iron phosphate power battery. The flexible-packaged high-power lithium iron phosphate power battery comprises a positive electrode plate, a negative electrode plate, a diaphragm, an electrolyte, tabs, and an aluminum plastic film, wherein the surface of a current collector of the positive electrode plate is pre-coated with a conductive coating and then coated with a positive electrode material. Each of both the positive electrode material and a negative electrode material comprises the following compositions in percentage by weight: 88-92% of active substances, 3-6% of a binder and 4-8% of a conducting agent. Through applying the modified positive electrode material, the surface of a current collector of the positive electrode plate is pre-coated with the conductive coating, so that the conductivity performance of the positive electrode material can be improved, the internal resistance of the battery can be effectively reduced, and heat release of the battery when in high-rate discharge is reduced. A mixture formed by mesophase carbon microbeads, artificial graphite and hard carbon according to certain ratio is adopted as the negative electrode material, so that a good solid electrolyte membrane is favorably formed, and the high-rate cycle performance of the battery can be improved through adding a certain amount of hard carbon.
Description
Technical field
The present invention relates to lithium-ion-power cell technical field, especially a kind of flexible package high power lithium iron phosphate electrokinetic cell.
Background technology
Energy scarcity and environmental pollution cause global extensive concern, and haze weather makes government's headache especially.Fuel-engined vehicle is main energy consumption body and air pollution source, and therefore each state is all at research and development electric automobile energetically, and is the key of Development of Electric Vehicles as the raising of the electrokinetic cell performance of electric automobile core component.
The LiFePO4 raw materials source of olivine structural is wide, cheap, environmentally friendly.Ferric phosphate lithium cell fail safe is high, has extended cycle life, and keeps stable under high temperature in the electrolytic solution, has good high temperature cyclic performance, is applicable to doing electrokinetic cell.But LiFePO4 is used as positive electrode exists ionic diffusion coefficient and the low problem of electronic conductivity, make its high-multiplying power discharge and high rate cyclic ability, larger internal resistance simultaneously makes its quantity of heat production large, wastes the electric energy of battery on the one hand, also can affect its fail safe in addition.
Summary of the invention
Poor in order to solve lithium iron phosphate dynamic battery high-rate discharge ability, the technical problems such as caloric value is large, provide a kind of packaging high power lithium iron phosphate electrokinetic cell, present invention reduces the internal resistance of cell, improve battery high-multiplying power discharge and high rate cyclic performance, make it better meet the application on electric vehicle.
The present invention is achieved by the following technical solutions:
A kind of flexible package high power lithium iron phosphate electrokinetic cell, include positive plate, negative plate, barrier film, electrolyte, lug, aluminum plastic film, it is characterized in that: the collection liquid surface of described positive plate is coated with one deck conductive coating in advance, apply anode material afterwards, anode material includes positive active material, binding agent and conductive agent, the collection liquid surface coating negative pole material of described negative plate, negative pole material includes negative electrode active material, binding agent and conductive agent.
Described flexible package high power lithium iron phosphate electrokinetic cell, is characterized in that: described anode material component and weight ratio are: positive active material 88-92%, binding agent 3-6%, conductive agent 4-8%.
Described flexible package high power lithium iron phosphate electrokinetic cell, it is characterized in that: the Graphene that the lithium iron phosphate particles Surface coating thickness that described positive active material is 40-200nm by particle diameter is less than 3.5nm is made, described positive conductive agent is selected from one or more in conductive black, flaky graphite, carbon nano-tube, and described positive electrode binder is Kynoar.
Described flexible package high power lithium iron phosphate electrokinetic cell, is characterized in that: the collector thickness of described positive plate is 10-20 micron, and the two-sided gross thickness of conductive coating is 2-5 micron.
Described a kind of flexible package high power lithium iron phosphate electrokinetic cell, is characterized in that: described negative pole material component and weight ratio are: negative electrode active material 88-94%, binding agent 3-6%, conductive agent 3-6%.
Described a kind of flexible package high power lithium iron phosphate electrokinetic cell, it is characterized in that: negative electrode active material is the mixture of carbonaceous mesophase spherules, Delanium and hard carbon, described negative electrode active material component and weight ratio are: carbonaceous mesophase spherules 65-75%, Delanium 10-15%, hard carbon 10-20%.
Described a kind of flexible package high power lithium iron phosphate electrokinetic cell, it is characterized in that: described cathode conductive agent is conductive black, described negative electrode binder is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber.
Described a kind of flexible package high power lithium iron phosphate electrokinetic cell, is characterized in that: described positive plate surface density is at 220-250g/m
2scope, negative plate surface density is at 116-133g/m
2scope.
Described flexible package high power lithium iron phosphate electrokinetic cell, is characterized in that: described both positive and negative polarity pole piece and barrier film adopt lamination to form battery core, are welded by positive plate, negative plate and copper nickel plating tab welding with aluminium pole ears, encapsulates in battery core loading aluminum plastic membrane shell.
The invention has the beneficial effects as follows: by applying modified positive electrode, and use the plus plate current-collecting body being coated with conductive coating, improve the electric conductivity of positive electrode, effectively reduce the internal resistance of cell, decrease heat release during battery high-multiplying power discharge.Negative plate adopts carbonaceous mesophase spherules, Delanium and hard carbon mixture by a certain percentage, and contribute to it and form good solid electrolyte film, adding of appropriate hard carbon contributes to improving its high rate cyclic performance.
Accompanying drawing explanation
Fig. 1 is that the 1C of battery in the embodiment of the present invention 2 10C that charges discharges 1000 cyclic curve figure.
Embodiment
Below in conjunction with specific embodiment, the content of the present invention of explanation clearly, but enforcement of the present invention is not limited to following embodiment.
Embodiment 1
The preparation of positive plate: the particle diameter adopting coated thickness to be less than the graphene coated of 3.5nm at the lithium iron phosphate particles of 40-200nm as positive active material.By LiFePO4, Kynoar, conductive black, flaky graphite, carbon nano-tube, prepares anode sizing agent according to the ratio of 90:5:3:1.5:0.5, and being coated in thickness is on the positive plate collector of 19 microns, and wherein conductive coating (two-sided) thickness is 3 microns.Preparation surface density is 220g/m
2positive plate.
The preparation of negative plate: by negative electrode active material 92%, sodium carboxymethylcellulose and butadiene-styrene rubber, conductive black prepares cathode size in 91:2.5:1.5:4 ratio.In positive active material, carbonaceous mesophase spherules, Delanium, hard carbon ratio are 70:15:15.Preparation surface density is 116g/m
2negative plate.
Electrolyte: electrolyte adopts the lithium hexafluoro phosphate organic solution of 1.3mol/L, and solvent is dimethyl carbonate, ethylene carbonate, and potash ethyl ester, propene carbonate mixes by a certain percentage.
Both positive and negative polarity pole piece and barrier film adopt lamination to form battery core, pole-piece pole-ear is welded together, again positive plate lug is welded with aluminium pole ears, negative plate lug and copper nickel plating tab welding, then battery core is loaded in aluminum plastic membrane shell encapsulate, by fluid injection, shelve, change into, the operations such as drawing liquid is shaping, partial volume obtain 25Ah LiFePO4 Soft Roll electrokinetic cell.
Embodiment 1 battery testing data: get a battery, with 1C charging, discharge with different multiplying respectively, test data is in table 1, as can be seen from Table 1: the high rate performance performance of battery is good, and 14C discharge capacity remains on more than 97%, 20C discharge capacity and remains on more than 80%.Whole process monitoring battery temperature is no more than 70 DEG C.
Table one:
Embodiment 2
The preparation of positive plate: the particle diameter adopting coated thickness to be less than the graphene coated of 3.5nm at the lithium iron phosphate particles of 40-200nm as positive active material.By LiFePO4, Kynoar, conductive black, flaky graphite, prepares anode sizing agent according to the ratio of 91:5:2.5:1.5, and being coated in thickness is on the plus plate current-collecting body of 19 microns, and wherein conductive coating (two-sided) thickness is 3 microns.Preparation surface density is 250g/m
2positive plate.
The preparation of negative plate: by negative electrode active material 92%, sodium carboxymethylcellulose and butadiene-styrene rubber, conductive black prepares cathode size in 92:2.5:1.5:3 ratio.In positive active material, carbonaceous mesophase spherules, Delanium, hard carbon ratio are 75:10:15.Preparation surface density is 133g/m
2negative plate.
Electrolyte: electrolyte adopts the lithium hexafluoro phosphate organic solution of 1.3mol/L, and solvent is dimethyl carbonate, ethylene carbonate, and potash ethyl ester, propene carbonate mixes by a certain percentage.
Both positive and negative polarity pole piece and barrier film adopt lamination to form battery core, pole-piece pole-ear is welded together, again positive plate lug is welded with aluminium pole ears, negative plate lug and copper nickel plating tab welding, then battery core is loaded in aluminum plastic membrane shell encapsulate, by fluid injection, shelve, change into, the operations such as drawing liquid is shaping, partial volume obtain 25Ah LiFePO4 Soft Roll electrokinetic cell.
Embodiment 2 battery testing data: get a battery with 1C current charges, 10C current discharge does loop test, as shown in Figure 1, as can be seen from Figure 1 through 1000 circulations, capacity still keeps 92% to cyclic curve, shows good high rate cyclic performance.
Claims (10)
1. a flexible package high power lithium iron phosphate electrokinetic cell, include positive plate, negative plate, barrier film, electrolyte, lug, aluminum plastic film, it is characterized in that: the collection liquid surface of described positive plate is coated with one deck conductive coating in advance, apply anode material afterwards, anode material includes positive active material, binding agent and conductive agent, the collection liquid surface coating negative pole material of described negative plate, negative pole material includes negative electrode active material, binding agent and conductive agent.
2. flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, is characterized in that: described anode material component and weight ratio are: positive active material 88-92%, binding agent 3-6%, conductive agent 4-8%.
3. flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, it is characterized in that: the Graphene that the lithium iron phosphate particles Surface coating thickness that described positive active material is 40-200nm by particle diameter is less than 3.5nm is made, described positive conductive agent is selected from one or more in conductive black, flaky graphite, carbon nano-tube, and described positive electrode binder is Kynoar.
4. flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, is characterized in that: the collector thickness of described positive plate is 10-20 micron, and the two-sided gross thickness of conductive coating is 2-5 micron.
5. a kind of flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, is characterized in that: described negative pole material component and weight ratio are: negative electrode active material 88-94%, binding agent 3-6%, conductive agent 3-6%.
6. a kind of flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, it is characterized in that: negative electrode active material is the mixture of carbonaceous mesophase spherules, Delanium and hard carbon, described negative electrode active material component and weight ratio are: carbonaceous mesophase spherules 65-75%, Delanium 10-15%, hard carbon 10-20%.
7. a kind of flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, it is characterized in that: described cathode conductive agent is conductive black, described negative electrode binder is the mixture of sodium carboxymethylcellulose and butadiene-styrene rubber.
8. a kind of flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, is characterized in that: described positive plate surface density is at 220-250g/m
2scope, negative plate surface density is at 116-133g/m
2scope.
9. flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, it is characterized in that: described both positive and negative polarity pole piece and barrier film adopt lamination to form battery core, positive plate is welded with aluminium pole ears, negative plate and copper nickel plating tab welding, encapsulate in battery core loading aluminum plastic membrane shell.
10. flexible package high power lithium iron phosphate electrokinetic cell according to claim 1, it is characterized in that: described electrolyte is the lithium hexafluoro phosphate organic solution of 1.3mol/L, and solvent is dimethyl carbonate, ethylene carbonate, methyl ethyl carbonate, the mixed liquor of propene carbonate.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470562A (en) * | 2016-01-06 | 2016-04-06 | 深圳市沃特玛电池有限公司 | Lithium ion battery and preparation method therefor |
| CN105633359A (en) * | 2016-03-25 | 2016-06-01 | 山东精工电子科技有限公司 | Preparation method for negative electrode paste with high-rate discharging performance, and negative electrode pole piece |
| CN105895193A (en) * | 2016-06-05 | 2016-08-24 | 李科 | Silver conductive coating material of lithium ion battery, preparation method of silver conductive coating material and lithium ion battery |
| CN106356502A (en) * | 2016-11-29 | 2017-01-25 | 中国科学院青岛生物能源与过程研究所 | High-rate-performance lithium iron phosphate battery positive electrode plate and preparation method thereof |
| CN106450047A (en) * | 2016-10-17 | 2017-02-22 | 中盐安徽红四方锂电有限公司 | High-temperature lithium ion power battery and making method thereof |
| CN106450436A (en) * | 2016-10-18 | 2017-02-22 | 湖南锂顺能源科技有限公司 | Low-temperature high-energy-density lithium iron phosphate battery |
| CN106654195A (en) * | 2016-11-23 | 2017-05-10 | 深圳市山木新能源科技股份有限公司 | Lithium ion battery and preparation method therefor |
| CN111211323A (en) * | 2020-01-13 | 2020-05-29 | 合肥国轩高科动力能源有限公司 | Soft package lithium ion battery of lithium iron phosphate system and preparation method thereof |
| CN111640883A (en) * | 2020-05-27 | 2020-09-08 | 广东博力威科技股份有限公司 | Aluminum plastic film and flexible package battery |
| CN111640976A (en) * | 2020-06-10 | 2020-09-08 | 江苏开沃汽车有限公司 | High energy density lithium iron phosphate power battery of car scale |
| CN112054202A (en) * | 2020-09-10 | 2020-12-08 | 辽宁九夷锂能股份有限公司 | High-energy high-rate lithium battery positive electrode additive, preparation method thereof and positive plate containing positive electrode additive |
| CN112582667A (en) * | 2020-04-04 | 2021-03-30 | 骆驼集团武汉新能源科技有限公司 | High-power lithium ion battery for automobile start-stop power supply |
| CN112688022A (en) * | 2020-12-28 | 2021-04-20 | 安普瑞斯（无锡）有限公司 | Quick charge-discharge lithium ion battery and preparation method thereof |
| CN113707882A (en) * | 2021-08-28 | 2021-11-26 | 江苏久泰电池科技有限公司 | Low-temperature lithium iron phosphate lithium ion power battery and low-temperature discharging method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162789A (en) * | 2007-11-16 | 2008-04-16 | 山东神工海特电子科技有限公司 | 1.5V charging capacitor battery |
| CN101373829A (en) * | 2008-10-07 | 2009-02-25 | 深圳市贝特瑞新能源材料股份有限公司 | Titanium-series cathode active material and preparation method thereof, titanium-series lithium ion power battery |
| CN101826634A (en) * | 2010-05-17 | 2010-09-08 | 江西省福斯特新能源有限公司 | Lithium ion battery and manufacturing method thereof |
| CN101964428A (en) * | 2010-08-05 | 2011-02-02 | 深圳市贝特瑞新能源材料股份有限公司 | Preparation method of lamellar lithium manganese battery |
| CN102412396A (en) * | 2011-11-11 | 2012-04-11 | 深圳市德方纳米科技有限公司 | Lithium ion battery electrode material coated with non-continuous graphene |
| CN102479975A (en) * | 2010-11-26 | 2012-05-30 | 韩国首尔步瑞株式会社 | Electrolyte additive, electrolyte including the same and lithiumsecondary battery including the electrolyte. |
| CN102544516A (en) * | 2012-02-20 | 2012-07-04 | 上海交通大学 | Method for producing graphene-coated lithium iron phosphate |
| CN102683751A (en) * | 2012-05-25 | 2012-09-19 | 浙江振龙电源股份有限公司 | High-capacity high-magnification square lithium ion power battery and manufacturing method thereof |
| CN102709587A (en) * | 2012-01-09 | 2012-10-03 | 宁德新能源科技有限公司 | Lithium ion battery and cathode current collector thereof |
| CN102768901A (en) * | 2012-08-06 | 2012-11-07 | 张宝生 | Long-life capacitance battery |
| CN103633318A (en) * | 2012-08-24 | 2014-03-12 | 海洋王照明科技股份有限公司 | Preparation method for cobaltosic oxide-graphene composite material and preparation method for lithium ion battery |
-
2014
- 2014-12-13 CN CN201410763920.9A patent/CN104577130A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162789A (en) * | 2007-11-16 | 2008-04-16 | 山东神工海特电子科技有限公司 | 1.5V charging capacitor battery |
| CN101373829A (en) * | 2008-10-07 | 2009-02-25 | 深圳市贝特瑞新能源材料股份有限公司 | Titanium-series cathode active material and preparation method thereof, titanium-series lithium ion power battery |
| CN101826634A (en) * | 2010-05-17 | 2010-09-08 | 江西省福斯特新能源有限公司 | Lithium ion battery and manufacturing method thereof |
| CN101964428A (en) * | 2010-08-05 | 2011-02-02 | 深圳市贝特瑞新能源材料股份有限公司 | Preparation method of lamellar lithium manganese battery |
| CN102479975A (en) * | 2010-11-26 | 2012-05-30 | 韩国首尔步瑞株式会社 | Electrolyte additive, electrolyte including the same and lithiumsecondary battery including the electrolyte. |
| CN102412396A (en) * | 2011-11-11 | 2012-04-11 | 深圳市德方纳米科技有限公司 | Lithium ion battery electrode material coated with non-continuous graphene |
| CN102709587A (en) * | 2012-01-09 | 2012-10-03 | 宁德新能源科技有限公司 | Lithium ion battery and cathode current collector thereof |
| CN102544516A (en) * | 2012-02-20 | 2012-07-04 | 上海交通大学 | Method for producing graphene-coated lithium iron phosphate |
| CN102683751A (en) * | 2012-05-25 | 2012-09-19 | 浙江振龙电源股份有限公司 | High-capacity high-magnification square lithium ion power battery and manufacturing method thereof |
| CN102768901A (en) * | 2012-08-06 | 2012-11-07 | 张宝生 | Long-life capacitance battery |
| CN103633318A (en) * | 2012-08-24 | 2014-03-12 | 海洋王照明科技股份有限公司 | Preparation method for cobaltosic oxide-graphene composite material and preparation method for lithium ion battery |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470562A (en) * | 2016-01-06 | 2016-04-06 | 深圳市沃特玛电池有限公司 | Lithium ion battery and preparation method therefor |
| CN105633359A (en) * | 2016-03-25 | 2016-06-01 | 山东精工电子科技有限公司 | Preparation method for negative electrode paste with high-rate discharging performance, and negative electrode pole piece |
| CN105895193A (en) * | 2016-06-05 | 2016-08-24 | 李科 | Silver conductive coating material of lithium ion battery, preparation method of silver conductive coating material and lithium ion battery |
| CN106450047A (en) * | 2016-10-17 | 2017-02-22 | 中盐安徽红四方锂电有限公司 | High-temperature lithium ion power battery and making method thereof |
| CN106450436B (en) * | 2016-10-18 | 2019-11-15 | 湖南锂顺能源科技有限公司 | A kind of low form high-energy density ferric phosphate lithium cell |
| CN106450436A (en) * | 2016-10-18 | 2017-02-22 | 湖南锂顺能源科技有限公司 | Low-temperature high-energy-density lithium iron phosphate battery |
| CN106654195A (en) * | 2016-11-23 | 2017-05-10 | 深圳市山木新能源科技股份有限公司 | Lithium ion battery and preparation method therefor |
| CN106356502A (en) * | 2016-11-29 | 2017-01-25 | 中国科学院青岛生物能源与过程研究所 | High-rate-performance lithium iron phosphate battery positive electrode plate and preparation method thereof |
| CN111211323A (en) * | 2020-01-13 | 2020-05-29 | 合肥国轩高科动力能源有限公司 | Soft package lithium ion battery of lithium iron phosphate system and preparation method thereof |
| CN112582667A (en) * | 2020-04-04 | 2021-03-30 | 骆驼集团武汉新能源科技有限公司 | High-power lithium ion battery for automobile start-stop power supply |
| CN111640883A (en) * | 2020-05-27 | 2020-09-08 | 广东博力威科技股份有限公司 | Aluminum plastic film and flexible package battery |
| CN111640976A (en) * | 2020-06-10 | 2020-09-08 | 江苏开沃汽车有限公司 | High energy density lithium iron phosphate power battery of car scale |
| CN112054202A (en) * | 2020-09-10 | 2020-12-08 | 辽宁九夷锂能股份有限公司 | High-energy high-rate lithium battery positive electrode additive, preparation method thereof and positive plate containing positive electrode additive |
| CN112688022A (en) * | 2020-12-28 | 2021-04-20 | 安普瑞斯（无锡）有限公司 | Quick charge-discharge lithium ion battery and preparation method thereof |
| CN113707882A (en) * | 2021-08-28 | 2021-11-26 | 江苏久泰电池科技有限公司 | Low-temperature lithium iron phosphate lithium ion power battery and low-temperature discharging method thereof |
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