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Yide New Energy

Hunan Yide New Energy Technology Co., Ltd. was established in 2019. The company is located in Shaoshan, the hometown of a great man Chairman Mao. The project is located in the standardized factory building of the Shuangchuang Demonstration Base in Shaoshan High-tech Zone. It is a company specializing in the research and development of lithium battery anode materials. High-tech enterprise with production.

2019
year
Founded
31019
㎡
Total land area
102
People
Employee

Product Series

A high-tech enterprise specializing in the research and development and production of lithium battery anode materials

YD-10

Excellent performance, low expansion, excellent cycle

YD-9

High energy density and long cycle life

YD-8

High gram capacity, low expansion, excellent cycle performance

YD-7

Excellent processing performance, low expansion, excellent cycle performance

YD-5

High gram capacity, excellent processing performance, excellent cycle performance

YD-6

High energy density, low expansion, long cycle life

YD-4

Low expansion, excellent cycle performance

YD-3

High energy density, low expansion, long cycle life

YD-2

High gram capacity, excellent processing performance, low expansion, excellent cycle performance

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Industry Application

It is widely used in electric vehicles, energy storage, 3C digital products and other fields.

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A high-tech enterprise specializing in the research and development and production of lithium battery anode materials

The University of Science and Technology of China has made a major breakthrough in the research of new lithium battery electrode materials

2021

09 -22

The University of Science and Technology of China has made a major breakthrough in the research of new lithium battery electrode materials

CCTV,Hefei,October9th(ReporterLiuJun)ThereporterlearnedfromtheUniversityofScienceandTechnologyofChinaonthe9ththattheresearchgroupofProfessorJiXingxingandcollaboratorsoftheschoolhasmadeamajorbreakthroughintheresearchofnewlithium-ionbatteryelectrodematerials:anewlydesignedblackPhosphorouscompositematerialsmakepossiblelithium-ionbatterieswithhighcapacity,fastcharging,andlonglife.Theresultswerepublishedinthe"Science"magazineonOctober9th,Beijingtime.Itisunderstoodthatelectricvehiclesarebecomingmoreandmorepopularinthemarket,butthelongchargingtimeisalsoprohibitive.Traditionalfuelvehiclescanextendarangeof500kilometerswithfullfuelinonlyfiveminutes,whileadvancedelectricvehiclescurrentlyonthemarketneedto"wait"foronehourtoachievethesamerangeextensioneffect.Thedevelopmentofhigh-capacitylithium-ionbatterieswithfastchargingcapabilitieshasalwaysbeenanimportantgoaloftheindustry.Theelectrodematerialisoneofthekeyfactorsthatdeterminethebatteryperformanceindex."Wehopetofindanelectrodematerialthatcannotonlygivetheindustryexpectationsintermsofcomprehensiveperformanceindicators,butalsoadapttotheindustrialbatteryproductionprocess."ProfessorJiHingxingsaid.Theauthorofthethesis,Dr.HongchangJin,introduced:“Energyentersandexitsthebatterythroughthechemicalreactionbetweenlithiumionsandelectrodematerials.Therefore,theconductivityoftheelectrodematerialtolithiumionsisthekeytodeterminingthechargingspeed;ontheotherhand,theelectrodematerialperunitmassorvolumecontainslithiumions.Theamountisalsoanimportantfactor."Accordingtotheintroduction,blackphosphorusisanallotropeofwhitephosphorus.Itsspeciallayeredstructuregivesitstrongionconductivityandhightheoreticalcapacity.Itisanelectrodematerialwithgreatpotentialtomeettherequirementsoffastcharging.However,blackphosphorusispronetostructuraldamagestartingfromtheedgeofthelayeredstructure,andthemeasuredperformanceisfarlowerthantheoreticalexpectations.JiHengxing'steamadoptedan"interfaceengineering"strategytoconnectblackphosphorusandgraphitethroughphosphorus-carboncovalentbonds,whichstabilizedthematerialstructurewhileimprovingtheconductivityoftheblackphosphorus-graphitecompositematerialtolithiumions.Buttheelectrodematerialwillbeenvelopedbychemicalsthatgraduallydecomposeintheelectrolyteduringtheworkingprocess.Somesubstanceswillpreventlithiumionsfromenteringtheelectrodematerial,justlikedustontheglasssurfacehinderslightpenetration.Theresearchteamusedathinpolymergeltomakeadust-proofcoatand"wore"onthesurfaceoftheblackphosphorousgraphitecompositematerialtoallowlithiumionstoentersmoothly."Weusetheconventionalprocessrouteandtechnicalparameterstomaketheblackphosphorouscompositematerialintotheelectrodesheet.Laboratorymeasurementresultsshowthattheelectrodesheetcanrecoverabout80%oftheelectricityafter9minutesofcharging,anditcanstillmaintain90%after2000cycles.Theco-author,XinSenfromtheInstituteofChemistryoftheChineseAcademyofSciencessaid,“Ifmassproductionofthismaterialcanbeachieved,matchingcathodematerialsandotherauxiliarymaterialscanbefound,andthecellstructure,thermalmanagementandOptimizingthedesignoflithiumprotection,etc.,willhopefullyobtainalithium-ionbatterywithanenergydensityof350Wh/kgandafastchargingcapability."Itisreportedthatalithium-ionbatterywithanenergydensityof350watt-hours/kgcanmakethedrivingrangeofanelectriccarcloseto1,000kilometers,whiletheTeslaModelShasadrivingrangeof650kilometersafterbeingfullycharged.Thefastchargingcapabilitywillincreasetheuserexperienceofelectricvehiclestoahigherlevel.

Talking about the anode material of lithium battery

2021

09 -22

Talking about the anode material of lithium battery

1.Definition:Thenegativeelectrodematerialisthecarrieroflithiumionsandelectronsinthebatterychargingprocess,andplaystheroleofenergystorageandrelease.Inthecostofthebattery,thenegativeelectrodematerialaccountsforabout5%-15%,anditisoneoftheimportantrawmaterialsforlithium-ionbatteries.2.Asacarrierforlithiumioninsertion,theanodematerialmustmeetthefollowingrequirements:Theinsertionredoxpotentialoflithiumionsinthenegativeelectrodematrixisaslowaspossible,closetothepotentialofmetallithium,sothattheinputvoltageofthebatteryishigh;``Alargeamountoflithiuminthematrixcanbereversiblyinsertedanddeintercalatedtoobtainhighcapacity;Duringtheinsertion/de-embeddingprocess,themainstructureofthenegativeelectrodehaslittleornochange;TheredoxpotentialchangeswiththeinsertionandremovalofLishouldbeaslittleaspossible,sothatthevoltageofthebatterywillnotchangesignificantly,andstablecharginganddischargingcanbemaintained;Theinsertioncompoundshouldhavegoodelectronicconductivityandionicconductivity,sothatpolarizationcanbereducedandhighcurrentchargeanddischargecanbecarriedout;ThehostmaterialhasagoodsurfacestructureandcanformagoodSEIwiththeliquidelectrolyte;Theintercalationcompoundhasgoodchemicalstabilityintheentirevoltagerange,anddoesnotreactwithelectrolytesetc.aftertheformationofSEI;Lithiumionshavealargediffusioncoefficientinthemainmaterial,whichisconvenientforrapidcharginganddischarging;Fromapracticalpointofview,thematerialshouldbeeconomicalandenvironmentallyfriendly.Three,carbon-basedanode:Fourth,silicon-basedanodematerialsaremainlydividedintotwocategories:1,crystallinesiliconmaterial;advantage:highcapacity,(4200mAh/g(Li4.4Si)),Disadvantages:Thevolumeexpansioncanreach300%,whichwillnotonlycausetheparticlesoftheSianodetobreak,butalsodamagetheconductivenetworkandbindernetworkoftheelectrode,resultinginthelossofactivematerials,whichwillseriouslyaffectthecycleperformanceofthesiliconanodematerial.TherearethreemainideasforsolvingtheproblemoflargevolumeexpansionofSimaterials:1)Nanometerization:Nanoparticlescanreducethedamageofthematerialparticlesandelectrodescausedbyvolumeexpansion,buttheyarelargerthanthetableandaffectthefirsteffect;andthemethodhasahighcost,acomplicatedprocess,andadifficultpreparation.2)Sicrystalmaterialswithspecialshapes,suchashoneycombmaterialsanddendriticSimaterials,usethedeformationoftheSimaterialitselftoabsorbthevolumechangeduringcharginganddischargingandimprovethecycleperformanceoftheSimaterial;butthecompactiondensityissmall,andtheprocessTheprocessiscomplicatedandthepreparationisdifficult.3)Si/Ccompositematerial,throughthecombinationofSiandgraphitematerial,thegraphitematerialisusedtobufferthevolumechangeoftheSimaterialduringthecycle,soastoimprovethecycleperformanceoftheSimaterial.Althoughtheexpansionspaceisreservedandthecycleperformanceisimproved,thecompactiondensityissmallandtheindustrializationisdifficult.Atpresent,scholarsatCentralSouthUniversityhavepreparedacompositeSianodematerialofsilicon,graphite,carbonnanotubesandpitchbyspraydrying.2,siliconoxidematerialSiliconoxide:Thevolumeexpansionissmall,butthefirsteffectistoolow.ThevolumeexpansionofSiOxmaterialismuchsmallerthanthatofcrystallinesiliconmaterial,butitsexpansionlevelisstillmuchhigherthanthatofgraphitematerials.Therefore,thedevelopmentofSiOxmaterialstillneedstofocusonthevolumeexpansionproblemtoreducethematerialparticlecrushingandpulverizationduringthecycle.,Improvethecyclelifeofthematerial.Therefore,nanoizationisalsoacommonmethodforSiOxmaterials;thereisalsotheuseofhigh-energyballmillingtotreatSiOxmaterials,reducingtheparticlesizeofSiOxmaterials,therebyimprovingthecycleandrateperformanceofthematerial,butthefirstefficiencyofthematerialisonly63%.InordertosubstantiallyimprovetheefficiencyofSiOxmaterialsforthefirsttime,KAISTdevelopedaSi-SiOx-Ccompositestructuresiliconanodematerial.NanoSiparticlesaredispersedinSiOxparticles,andthesurfaceoftheparticlesiscoveredwithalayerofporousCarbonmaterial.Electrochemicaltestsshowthatthematerialhasexcellentelectrochemicalperformance,withareversiblecapacityof1561.9mAh/gat0.06C,afirstefficiencyof80.2%,100cyclesof1C,andacapacityretentionrateof87.9%.5.LithiummetalanodematerialMetallithiumisoneofthemetalswiththelowestdensity.Thestandardelectrodepotentialis-3.04Vandthetheoreticalspecificcapacityis3860mAh/g.Fromthisdata,itissecondonlyto4200mAh/gofsilicon.Applicationareas:Lithium-sulfurbattery(2600wh/kg),lithium-airbattery(11680wh/kg),etc.Lithiummetalbatterieshavehighcapacityperformance,butinuse,duetothepresenceoflithiumdendrites,negativeelectrodeprecipitation,negativenegativesidereactions,whichseriouslyaffectthesafetyofthebattery,itisintheconceptualstageatthisstage.Lithium-sulfurbattery.Sulfurisalsoaverywidespreadelementinnature.Thehigherenergydensity(2600wh/kg)oflithium-sulfurbatteriesmaybethefocusofthenextgenerationoflithiumbatteryresearchanddevelopment.Lithium-airbattery.Lithium-airbatteryhasaveryhighenergydensity(11680wh/kg),whichisclosetotheenergydensityoffuel,andisenvironmentallyfriendly.Thereactionproductiswater.VI.Lithiumtitanateanodemater

What is lithium hydroxide? Introduction to the characteristics and uses of lithium hydroxide

2021

09 -22

What is lithium hydroxide? Introduction to the characteristics and uses of lithium hydroxide

Lithiumhydroxideisasmallwhitemonocliniccrystal.Lithiumhydroxidehasaspicytasteandstrongalkalinity.Lithiumhydroxideisplacedintheair,itwillabsorbcarbondioxideandmoisture.Itisachemicalsubstancesolubleinwater.Lithiumhydroxideisslightlysolubleinethanolandinsolubleinether.Itisacorrosivesubstance.ThecharacteristicsoflithiumhydroxideLithiumhydroxideisaninorganicsubstancewiththechemicalformulaLiOHandtheEnglishnameLithiumhydroxide.Itisasmallwhitemonocliniccrystalwithaspicytaste,strongalkalinityandcorrosiveness.ThepHofa1mol/Lsolutionisabout14,pKb=-0.04.Itcanabsorbcarbondioxideandmoistureintheair,solubleinwater,slightlysolubleinethanol,andinsolubleinether.Therelativedensityis1.45,themeltingpointis471°C(anhydrous),anditdecomposesat925°C.AvailableinanhydrousandmonohydrateformsUseoflithiumhydroxideLithiumhydroxideisanimportantbasiclithiumsaltproduct.Lithium-basedgreasepreparedfromlithiumhydroxidehastheadvantagesoflongservicelife,oxidationresistance,andhightemperaturestability;lithiumhydroxidecanbeusedasadevelopingagentforspectralanalysis,Lubricant,asanadditiveforalkalinestoragebatteries,lithiumhydroxidecanincreasethestoragecapacityandprolongtheservicelifeofthebattery.Inaddition,lithiumhydroxidehasimportantapplicationsinmetallurgy,atomicenergy,chemicalreagents,aerospace,defenseindustryandotherfields.Itcanbeusedasanabsorbentforcarbondioxideandcanpurifytheairinthesubmarine.Usedtomakelithiumsaltandlithium-basedgrease,electrolyteforalkalinestoragebatteries,lithiumbromiderefrigeratorabsorbingliquid,lithiumsoap(lithiumsoap),lithiumsalt,developer,etc.orasanalyticalreagents;petroleum,chemical,lightindustry,Usedinthenuclearindustry.Whenusedinalkalinestoragebatteries,thealuminumcontentisnotmorethan0.06%,andtheleadcontentisnotmorethan0.01%.Usedasananalyticalreagent,photographicdeveloper,andalsousedinthemanufactureoflithium;itistobeusedasarawmaterialforthepreparationoflithiumcompounds.Itcanalsobeusedinmetallurgy,petroleum,glass,ceramicsandotherindustries.

Analysis of the market status and development prospects of the lithium battery anode material industry: natural graphite vs. artificial graphite, who has more potential?

2021

09 -22

Analysis of the market status and development prospects of the lithium battery anode material industry: natural graphite vs. artificial graphite, who has more potential?

The core data of this article: natural graphite and artificial graphite shipments, lithium battery anode material market structure, natural graphite and artificial graphite prices, artificial graphite competition pattern, artificial graphite cost structure

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ABOUT US

2019

31019

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The University of Science and Technology of China has made a major breakthrough in the research of new lithium battery electrode materials

Talking about the anode material of lithium battery

What is lithium hydroxide? Introduction to the characteristics and uses of lithium hydroxide

Analysis of the market status and development prospects of the lithium battery anode material industry: natural graphite vs. artificial graphite, who has more potential?

Contact Us