釩電池用電解液的制備及負極電解液穩(wěn)定性研究

1、中南大學碩士學位論文釩電池用電解液的制備及負極電解液穩(wěn)定性研究姓名：桑玉申請學位級別：碩士專業(yè)：應用化學指導教師：劉素琴20060720碩士學位論文ABSTRACTABSTRACTInthispaperhighconcentrationvanadiumelectrolytehasbeenpreparedbythemethod：usesV205，whichpreparatedbycalciningmulti—ammoniumvanadat

2、e，andtheV203reactinthehotsulfuricacidwaterysolutionthehighpotency(vanadiumiontotaldensityreaches20molL“)，high—purity(quadrivalencevanadiumionmorethan95％)vanadiumelectrolytecanbepreparedinthiswayThemethodofPotentiometrict

3、itrationanalysisandthemethodofultravioletfordeterminingoxidationstatesofvanadiuminthevamadiumelectrolytewasestablishedtheaverageerrorWaslessthan21％andthepHtitrimetricmethodforelectrolyteaciditywasestablished，thepHofendpo

4、intwas2InthispaperthestabilityofcathodeelectrolyteforAllvanadiumredoxflowbatteryhasberesearchedManykindsofanalysismethodbeusedtesearchthecrystalseparatedoutfromcathodeelectrolyteforAllvanadiumredoxflowbatterysuchasultrav

5、iolet，infrared，XPS，XRD，TG—DTGICP—AESandSOonTheresultindicatedthatthecrystalismainlythreepricesvanadiumion，anddetermineditsmolecularformulais：V2(804)3“6H20Theinfluenceofthedifferenttypechemicaladditiveontheelectrolytestab

6、ilityandtheelectrochemistryperformancewereinspectedThestabilityofcathodeelectrolytewasimprovedbyaddingH3P04andAcetylacetone，thedosageis2％(Volumeratio)，theelectrolyteincludedH3P04orAcetylacetoneWassteadymorethan40daysinth