Conventional tetrabasic lead sulfate used as positive active material additive shows the results of the low
effective lead dioxide conversion rate due to the large grain size and crossed the crystal structure. In this
paper, we study on a type of nanometer tetrabasic lead sulfate. Through the XRD and SEM test and
Material Studio software calculation, the purity of tetrabasic lead sulfate is very high, the grain size of the
nanometer 4BS is almost unanimous, and can be controlled below 200 nm. When charged and dis-
charged in 1.75 V
e
2.42 V with the current density of 40 mA g
1
,80mAg
1
and 160 mA g
1
, the effective
lead dioxide conversion rate of nanometer 4BS after formation can achieve to 83.48%, 71.42%, and 66.96%
Conventional tetrabasic lead sulfate used as positive active material additive shows the results of the loweffective lead dioxide conversion rate due to the large grain size and crossed the crystal structure. In thispaper, we study on a type of nanometer tetrabasic lead sulfate. Through the XRD and SEM test andMaterial Studio software calculation, the purity of tetrabasic lead sulfate is very high, the grain size of thenanometer 4BS is almost unanimous, and can be controlled below 200 nm. When charged and dis-charged in 1.75 Ve2.42 V with the current density of 40 mA g1,80mAg1and 160 mA g1, the effectivelead dioxide conversion rate of nanometer 4BS after formation can achieve to 83.48%, 71.42%, and 66.96%
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