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Home> Articles>News>Type of Primary Batteries — High Energy Density Battery For Smartwatch

Type of Primary Batteries — High Energy Density Battery For Smartwatch

From:CTECHI GROUP Limited     Release time:2018-10-18

Overview:PRIMARY BATTERIES, sometimes also called one-off, or non-chargeable batteries because they have to be discarded after they have no power as they cannot be recharged for reuse. Primary batteries can produce current immediately on assembly. Non-chargeable batteries are intended to be used once and discarded. These are most commonly used in portable electronic devices that have low current drain, are only used intermittently, or are used well away from an alternative power source, such as in alarm and communication circuits where other electric power is only intermittently available. One-off cells cannot be reliably recharged, since the chemical reactions are not easily reversible and active materials may not return to their original forms. So, it is suggested not to recharge primary cells.

PRIMARY BATTERIES, sometimes also called one-off, or non-chargeable batteries because they have to be discarded after they have no power as they cannot be recharged for reuse. Primary batteries can produce current immediately on assembly. Non-chargeable batteries are intended to be used once and discarded. These are most commonly used in portable electronic devices that have low current drain, are only used intermittently, or are used well away from an alternative power source, such as in alarm and communication circuits where other electric power is only intermittently available. One-off cells cannot be reliably recharged, since the chemical reactions are not easily reversible and active materials may not return to their original forms. So, it is suggested not to recharge primary cells.

Primary Batteries include-

a) Carbon Zinc (aka. 'Heavy Duty') -- The cheapest primary cell (household) is the zinc-acidic manganese dioxide battery. Though they provide only very low power, they have a good shelf life and are well suited for clocks and remote controls.

b) Alkaline -- The most commonly used primary cell (household) is the zinc-alkaline manganese dioxide battery. They generate more power than Carbon-zinc and rechargeable batteries and have an excellent shelf life.

Lithium vs Alkaline Battery Life

Lithium vs Alkaline Battery Life

c) Lithium Cells -- Lithium batteries offer more performance advantages than the capabilities of conventional aqueous electrolyte battery systems. Lithium vs Alkaline battery life: their shelf-life can be well above 10-years and they will work at very low temperatures. Lithium batteries are mainly used in small sizes (from coins cells up to about AA size), because bigger sizes of lithium batteries have some safety problems ( flammable in collision ) in consumer applications. Bigger (i.e. 'Lithium thionyl chloride d cell') sizes are only used in military applications.

d) Silver Oxide Cells – These batteries have a very high energy density, but are very expensive due to the high cost of silver. Therefore, silver oxide cells are mainly used as high energy density battery for smartwatch and calculators.

e) Zinc Air Cells – These batteries have become the standard for hearing aid batteries. They have a very long run time, because they store only the anode material inside the cell and use the oxygen from the ambient air as cathode.

Lithium vs Alkaline Battery Life

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