貯氫合金電極性能的工藝因素影響及其電子結(jié)構(gòu)的微觀機(jī)理研究.pdf

1、廣西大學(xué)碩士學(xué)位論文貯氫合金電極性能的工藝因素影響及其電子結(jié)構(gòu)的微觀機(jī)理研究姓名：李衛(wèi)申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：材料物理化學(xué)指導(dǎo)教師：郭進(jìn)2001.5.1一[塑查蘭堡主堡壅關(guān)鍵詞貯氫合金金屬氫一鎳電池活化自放電充放電制度模式識(shí)別電子結(jié)構(gòu)AbstraetInthispaperthecharacteristicsandregularitiesofeffectsofactivationandselfdischargeandcharge／disc

2、bargerateonthepropertiesofNi—MHbatteryhavebeeninvestigatedThedischargecapacitiesandthecyclelifeforNiMHbatterieswithdifferenttechnologyfactorsareanalyzedbychemicalpatternrecognitionmethod，andsomecriteriaforimprovingbatter

3、ypropertiesareobtainedTheelectronicstructuresofRENis(RE=La’Ce，PrNd)andLaNi4M(M=Ni、Cu、Mn、AI)aswellastheirhydrideswereinvestigatedbytheSCCDV—Xa(SelfConsistentChargeDiscreteVariationalXq)methodTheinfluenceofelectronicstruct

4、uresonpropertiesofabsorbinghydrogenandelectrodewerestudiedTheseresultsshowedthat：1Ifthecapacityofaelectrodeisbigduringthecourseofactivating，thecapacityofthecorrespondingbatteryisbigsoactivationcanserveasthefirststepinqua

5、lityexamining，ThecyclelifetimecanbepredictedbycomparingthevariationofthedischargecurveinselfdischargeThebatteriesactivatedbymoderateelectriccurrenttakeonhighdischargecapacityandhavelongcyclelifeforpreservinghighratioofel

6、ectriccapacityandsteadypropertyofdischargevoltageplateauduringthecourseoftheusingincycle’2BinderconductorandadditiveareimportantinfluencingfactorsonbatterypropertiesBesides，binderandconductoractondischargecapacitiesandcy