Abstract
Spherical Ni(OH)_(2) was coated with CoOOH through chemical precipitation and electrolytic oxidation.The influences of CoOOH coating on fast charge performance ofMH/Ni battery were studied by preparing high capacity and fast charge AA size MH/Ni batteries.The sample coated with CoOOH was characterized by Infrared spectrum(IR) and scanning electron microscopy(SEM).The results showed that the internal resistance decreased 3.4 mΩ,the charge plateau lower and the cell temperrature was below 55 ℃ at the end of charging process when the cathode active material used Ni(OH)_2 coated with CoOOH as compared with that doped by CoO.In addition,an initial discharge efficiency of 90.6% and over 300 cycles lifetime were achieved when the batteries were fast charged.
Keywords
Spherical nickel hydroxide, Surface modification, CoOOH, Fast charge
Publication Date
2006-05-28
Online Available Date
2006-05-28
Revised Date
2006-05-28
Received Date
2006-05-28
Recommended Citation
Min-jie YANG.
Preparation of Spherical Ni(OH)_2 Coated with CoOOH and Its Fast Charge Performance[J]. Journal of Electrochemistry,
2006
,
12(2): 205-209.
DOI: 10.61558/2993-074X.1723
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol12/iss2/15
References
[1]KohlerU,Anton ius C,Bauerlerin P.Advance in alka-line batteries[J].J.Power Sources,2004,127:45.
[2]Tan iguch i A,Fu jioka N,Ikom a M,et al.Developm entof n ickel/m etal-hydride batteries for EVs and HEVs[J].J.Power Sources,2001,100:117.
[3]Nelson R F.H igh-power batteries for the new 36/42Vautomotive system s[J].J.Power Sources,2001,100:117.
[4]L iaw B Y,Yang X G.Reliab le fast recharge of n ickelm etal hydride cells[J].Solid State Ion ics,2002,152~153:217.
[5]L iaw B Y,Yang X Y.L im iting m echan ism on rap idcharging N i-MH batteries[J].E lectroch im ica Acta,2001,47:875.
[6]Zhang Y S,Cao X Y,Yuan H T,et al.Oxygen evolu-tion reaction on N i hydroxide film electrode contain ingvarious content of Co[J].International Journal Hydro-gen Energy,1999,24:529.
[7]Faure C,Delm as C.Preparation and characterization ofcobalt-substitutedα-n ickel hydroxide stab le in KOH m e-d ium PartⅠ.-αhydroxide w ith an ordered pack ing[J].J.Power Sources,1991,35:249.
[8]Faure C,Delm as C.Preparation and characterization ofcobalt-substitutedα-n ickel hydroxide stab le in KOH m e-d ium PartⅡ.α-hydroxide w ith a turbostratic structure[J].J.Power Sources,1991,35:263.
[9]Delm as C,Faure C,Borthom ieu Y.The effect of cobalton the chem ical and electrochem ical behaviour of n ickelhydroxide electrode[J].M aterial Sc ience and Engineer-ing,1992,B13(2):89.
[10]W ang X Y,Yang J,Yuan H T,et al.Surface mod ifi-cation and electrochem ical stud ies of n ickel hydroxideelectrode m icroencapsu lated by cobalt[J].J.PowerSources,1998,72(2):1026.
[11]E lum alai P,Vasan H N,Mun ichandraiah N.E lectro-chem ical stud ies of cobalt hydroxide-an add itive forn ickel electrodes[J].J.Power Sources,2001,93(1~2):201.
[12]D ingW an-chun,Yuan An-bao(袁安保),Zhang Jian-q ing(张鉴清),et.al.Stud ies on electrochem icalcharacteristics of pasted n ickel hydroxide electrode w ithsurface deposited cobalt(Ⅱ)hydroxide[J].Ch ineseJournal of Power Sources(in Ch inese),2004,24(8):204.
[13]Tang Zh i-yuan,Xu zheng-rong,Rong Q iang,et al.Characteristics of chem ically synthesized CoOOH[J].Battery B imonthly,2004,34(2):96.
[14]L ichtenberg F,K le insorgen K.Stab ility enhancem entof the CoOOH conductive network of n ickel hydroxideelectrodes[J].J.Power Sources,1996,62(2):207.
[15]Sato N,Yagi K.Therm al behavior analysis of n ickelm etal hydride batteries for electric veh ic les[J].JSAEReview,2000,21:205.
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