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N 4.2 Optimisation of the Negative Active Material and PSoC Cycle
Life of VRLA Batteries for 42V Mild Hybrid Applications
Contractor: Exide, CMP, CSIRO, University of BRNO
Objective: The team mounting project N 4.2 will explore in some
detail the mechanisms involved in the negative plate during HRPSoC
operation: charge acceptance will be monitored by means of an analysis
of the gas space in the cell, the influence of grid design will be
explored, and a systematic study will be made of combinations of
negative plate additives in various proportions. This will be followed
by post-service analysis and an overview of the results of the whole
project to clarify the mechanisms.
N 4.4 Optimization of Additives to the Negative Active Material
for the Purpose of Extending the Life of VRLA Batteries in High-Rate
Partial-State-of-Charge (HRPSoC) Operation
Contractors: Hammond Group, Lignotech, NorthStar Batteries
Objectives: Project N 4.4 will make a study of the effects of locating
effective additives near the outer surface of the negative plate
where the accumulation of sulfate appears to be most deleterious.
N 5.2 Development of Additives in Negative Active Material to
Suppress Sulfation During High Rate Partial State-of-Charge (HRPSoC)
Operation
Contractors: Japan Storage Battery
Objectives: In project N 5.2 an investigation will be carried out
of various factors involved in the degradation of the negative plate
in HRPSoC operation, including the beneficial role of bulk additives.
TE 1 Influence of Trace Elements on the Performance of VRLA Batteries
at High Temperatures and Under High-Rate Partial-State-of-Charge
(HRPSoC) Operation
Contractors: CSIRO
Objective: Project TE1 is an investigation into the effects of trace
elements on
the all-important predisposition of the negative plate to produce
hydrogen rather, than to advance in state-of-charge, under a charging
current.
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