Alkaline Batteries

Alkaline Batteries

PMBL design, assemble and manufacture alkaline battery packs. We have full production and testing facilities in the UK and a team of engineers on hand to discuss your requirements and develop the ideal solution for you.

Advantages of Alkaline Batteries

  • High energy output
  • Long shelf life
  • Good leakage resistance, and
  • Superior low temperature performance.

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In comparison to the zinc-carbon cell, the alkaline cell delivers up to ten times the ampere-hour capacity at high and continuous drain conditions, with its performance at low temperatures also being superior to other conventional aqueous electrolyte primary cells. Its more effective, secure seal provides excellent resistance to leakage and corrosion.

The most popular primary batteries are alkalines. Based on manganese dioxide, zinc and a caustic potassium hydroxide-zinc oxide electrolyte, alkaline-cell technology offers greater capacity for a given cell size compared with Leclanche types, but they cost more and weigh about 25 percent more.

There have been major improvements in alkaline cell performance over the decades. These improvements have been a result of changes in packaging and manufacturing techniques rather than any improvements to the basic chemical system.

In the past, alkaline batteries were made with complex sealing systems and thick steel outer cases and end caps. During the 1980s, a method was developed that allowed manufacturers to use thinner packaging materials and more efficient seals. More room was created for active materials within a given standard cell size, and that increased capacity.

In the early 90s, government mandate ruled out the use of mercury in alkaline cells providing a major challenge to manufacturers. Mercury, an environmental pollutant, was used in alkaline batteries as an anti-passivation stabilizer for the zinc electrode. Without mercury, chemical processes within the battery cause the zinc to function less efficiently as discharge proceeds because of passivation of zinc surface, thus limiting useful battery life.

Battery Manufacturers, such as Energizer and Duracell rose to the challenge and we now have mercury free cells that function as well as their predecessors. They provide excellent performance at a price premium for applications such as toys, radios, and flashlights. Brand name recognition, i.e. Energizer and Duracell, make this chemistry an excellent choice when product image is important.

Key Features Of Alkaline Batteries:

  • Cell Voltage: 1.5V (nominal) 0.8 (cut-off)
  • Capacity: 34 mAh to 15,000 mAh
  • Energy by Weight: 75 Wh/lb. (163 Wh/kg)
  • Energy by Volume: 6.5 Wh/cubic inch (398 Wh/litre)
  • Shelf Life: 5 years to 80% capacity (20° C)
  • Temperature Range: -20° C to 55° C
  • Sizes: AAAA, AAA, AA, C, D and 9 volt
  • Weight: 12grams to 135grams

Applications For Alkaline Batteries:

  • Cameras,
  • Electric Shavers,
  • Electronic Calculators,
  • Electronic Door Locks,
  • Fire Detectors,
  • Flashlights
  • Pagers,
  • Strobes,
  • Tape Recorders,
  • Toys, and
  • other cordless products.

For more information about the Alkaline Batteries and how they can help you build your application or if you would like advice from one of our Battery Specialists, please get in touch.

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