Duracell Ni-MH Manual do Utilizador

TTNi-MH Rechargeable Batteriesable of Contents1 Introduction2 General Characteristics3 Composition and Chemistry3.1 Active Components: Positive and N

Ni-MH Rechargeable Batteries5.7 Internal ImpedanceDURACELL nickel-metal hydride batteries have lowinternal impedance because they are manufactured us

10Ni-MH Rechargeable BatteriesAlthough many years of premium performance can be enjoyed from a nickel-metal hydride battery thatis properly handled, t

66Ni-MH Rechargeable Batteries6.1 General PrinciplesRecharging is the process of replacing energythat has been discharged from the battery. The subs

Duracell recommends the charge termination methoddescribed in Section 6.3.1. The voltage of the nickel-metal hydride batteryduring charge depends on

13Ni-MH Rechargeable BatteriesThe following summary explains some of therecommended methods for charge control. The charac-teristics of each of these

6.2.5 Delta Temperature Cutoff (∆TCO)6.2.6 Rate of Temperature Increase (dT/dt)6.3 Charging MethodsNi-MH Rechargeable BatteriesThis technique measure

6.3.1 Duracell’s Recommendation: Three-Step Charge Procedure6.3.2 Low-Rate Charge (≈12 hours)6.3.3 Quick Charge (≈4 hours)6.3.4 Fast Charge (≈1 hour)N

6.3.5 Trickle Charge6.4 Thermal Devices16Ni-MH Rechargeable BatteriesA number of applications require the use ofbatteries which are maintained in a fu

77Cycle and Battery Life7.1 Cycle LifeThe cycle life of nickel-metal hydride batteriesdepends on the many conditions to which the batteryhas been exp

7.2 Battery LifeTable 7.2.1Recommended PermissibleLow Rate Charge 15°C to 30°C (59°F to 86°F) 0°C to 45°C (32°F to 113°F)Quick Charge 10°C to 30°C (5

Ni-MH Rechargeable Batteries1122IntroductionRapid advancements in electronic technology have expanded the number of battery-powered portabledevices in

88Safety ConsiderationsDuracell’s nickel-metal hydride batteries are designed to ensure maximum safety. Each cell includes aresealable pressure relie

20Ni-MH Rechargeable BatteriesTable 8.0.1Test Test Conditions Test ResultsFlat Plate Crush Test Cell is crushed between No explosion, sparks, or fl

Ni-MH Rechargeable Batteries2199Proper Use and HandlingNickel-metal hydride batteries can give years of safe and reliable service if they are used in

22Ni-MH Rechargeable Batteries9.3 Waste Management: Recycling and Disposal9.2 TransportationProcedures for the transportation of batteriesare specifi

Ni-MH Rechargeable Batteries33Composition and ChemistryA rechargeable battery is based on the principle that the charge/discharge process is reversibl

The sealed nickel-metal hydride cell uses the“oxygen-recombination” mechanism to prevent a build-up of pressure that may result from the generation of

4Ni-MH Rechargeable Batteries44Battery Construction DURACELL standard-sized nickel-metal hydride batteries are constructed with cylindrical and prisma

Ni-MH Rechargeable BatteriesThe basic differences between the prismaticcell and the cylindrical cell are the construction ofthe electrodes and the sha

Ni-MH Rechargeable Batteries5.1 General CharacteristicsThe discharge characteristics of the nickel-metalhydride cell are very similar to those of the

Typically, when the current is higher and thetemperature is lower, the operating voltage will belower. This is due to the higher “IR” drop thatoccurs

Figure 5.4.1 compares the gravimetric andvolumetric energy density of nickel-metal hydrideand nickel-cadmium cells. As indicated, nickel-metalhydride