Lead-Acid Battery Dissolution and Precipitation Reactions

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What is the overall cell voltage of the Nickel-Metal Hydride (Ni-MH) batteries?

1.2 V

0.83 V

1.35 V (correct)

0.52 V

Which part of the battery is responsible for the reduction reaction in the Ni-MH batteries?

Anode

Discharge cut-off

Nominal voltage

Cathode (correct)

What are the main challenges associated with Ni-MH batteries mentioned in the text?

Low cost and abuse tolerance

High self-discharge and heat generation at high temperatures (correct)

Long life cycle and safety

Control of hydrogen loss and high specific energy

What discharge cut-off voltage is normally observed for the Ni-MH batteries?

1.0 V Signup and view all the answers

What is the overall cell voltage of the lead-acid battery?

2.04 V Signup and view all the answers

What is the main factor causing degradation of battery capacity in lead-acid batteries?

The depth of discharge (DOD) of the battery Signup and view all the answers

What is the chemical process involved in the dissolution of lead-acid batteries?

$PbO_2 + 4H^+ + 2e^- \rightarrow Pb^{2+} + 2H_2O(l)$ Signup and view all the answers

What are the drawbacks of lead-acid batteries that impede their use?

Low specific energy, poor cold-temperature performance, and short calendar and lifecycle Signup and view all the answers

What were the dominant choice of battery chemistry for HEV in the past?

Nickel Metal Hydride (NiMH) Batteries Signup and view all the answers

What are some advantages of Lithium-ion batteries over NiMH batteries?

High power-to-weight ratio and high energy efficiency Signup and view all the answers

What type of batteries are mostly used in today's all-electric vehicles and PHEVs?

Lithium-ion batteries Signup and view all the answers

What are some considerations involved in EV battery pack design?

Energy density, weight, and cost Signup and view all the answers

Lead-Acid Battery Dissolution and Precipitation Reactions

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Questions and Answers

What is the overall cell voltage of the Nickel-Metal Hydride (Ni-MH) batteries?

Which part of the battery is responsible for the reduction reaction in the Ni-MH batteries?

What are the main challenges associated with Ni-MH batteries mentioned in the text?

What discharge cut-off voltage is normally observed for the Ni-MH batteries?

What is the overall cell voltage of the lead-acid battery?

What is the main factor causing degradation of battery capacity in lead-acid batteries?

What is the chemical process involved in the dissolution of lead-acid batteries?

What are the drawbacks of lead-acid batteries that impede their use?

What were the dominant choice of battery chemistry for HEV in the past?

What are some advantages of Lithium-ion batteries over NiMH batteries?

What type of batteries are mostly used in today's all-electric vehicles and PHEVs?

What are some considerations involved in EV battery pack design?

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