Module 2 : Energy conversion & storage

Which of the following is not a secondary battery

• Mercury cell

• LiPo battery

• Na-ion battery

• Lead acid cell

Choose the incorrect statement regarding PV cell

• electrons are collected at the n- type

• electrons are collected at the p- type

• Works on the basis of photoelectric effect

• Converts sunlight into direct current

Which of the following material is not used in a PV cell

• Silicon nitride

• TiO₂

• Metal grid

• Silver nitrate

A battery that remains in the inactive state and is activated immediately before use is ____

• Primary

• Secondary

• Reserved

• Fuel cell

Electrolyte used in Na ion battery is

• Carbon

• NaMO₂

• Na salt in PF₆

• NaOH

Cell representation of Li Polymer battery

• Li | Li⁺ , C | P(EO)₆–LiAsF₆ | LiMO₂

• Li⁺ | Li , C | P(EO)₆–LiAsF₆ | LiMO₂

• Li | Li⁺ , LiMO₂ | P(EO)₆–LiAsF₆ | C

• Li⁺ | Li , LiMO₂ | P(EO)₆–LiAsF₆ | C

Cell representation of Na ion battery

• Na⁺ | Na , C | Electrolyte containing sodium salt | NaMO₂

• Na⁺ | Na , NaMO₂ | Electrolyte containing sodium salt | C

• Na | Na⁺ , C | Electrolyte containing sodium salt | NaMO₂

• Na | Na⁺ , NaMO₂ | Electrolyte containing sodium salt | C

Product formed at the cathode during discharging of Na ion battery

• MO₂

• Na-C₆

• Na⁺

• NaMO₂

______ prevents internal short circuit & iand maintains the desired ionic conductivity.

• Anode

• Cathode

• Electrolyte

• Separator

____ acts as a medium to transfer the ions across the anode and cathode inside the battery

• Anode

• Electrolyte

• Separtor

• athode