Duracell manual Ni-MH Rechargeable Batteries, Able of Contents

Ni-MH Rechargeable Batteries

Tableof Contents

1Introduction

2General Characteristics

3Composition and Chemistry

3.1Active Components: Positive and Negative Electrodes

3.2Electrolyte

3.3Cell Reactions

4Battery Construction

4.1Basic Cell Construction

4.2Cylindrical Cell Construction

4.3Prismatic Cell Construction

5 Performance Characteristics
5.1	General Characteristics		5.5	Constant Power Discharge Characteristics
5.2	Discharge Characteristics: Effect of Discharge Rate		5.6	Polarity Reversal During Overdischarge
	and Temperature		5.7	Internal Impedance
5.3	Capacity: Effect of Discharge Rate		5.8	Self-Discharge and Charge Retention
	and Temperature		5.9	Voltage Depression (“Memory Effect”)
5.4	Energy Density
6 Charging Sealed Nickel-Metal Hydride Batteries
6.1	General Principles		6.3	Charging Methods
6.2 Techniques for Charge Control				6.3.1	Duracell’s Recommendation:
	6.2.1	Timed Charge			Three-Step Charge Procedure
	6.2.2	Voltage Drop (-ΔV)		6.3.2	Low-Rate Charge
	6.2.3	Voltage Plateau (zero ΔV)		6.3.3	Quick Charge
	6.2.4	Temperature Cutoff		6.3.4	Fast Charge
	6.2.5	Delta Temperature Cutoff (ΔTCO)		6.3.5	Trickle Charge
	6.2.6	Rate of Temperature Increase (dT/dt)	6.4	Thermal Devices

7Cycle and Battery Life

7.1Cycle Life

7.2Battery Life

8Safety Considerations

9Proper Use and Handling

9.1Care and Handling

9.2Transportation

9.3Waste Management: Recycling and Disposal