How Long Do Your Batteries Need to Run?

ONLY CERTAIN BATTERIES CAN OPERATE FOR DECADES IN EXTREME ENVIRONMENTS Lithium-based batteries have high intrinsic negative potential, exceeding that of all other metals, with an operating current voltage (OCV) ranging from 2.7 to 3.6 V. Lithium batteries are also non-aqueous, with the absence of wa...

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Bibliographic Details
Published in:Electronic Design 2019-11, Vol.67 (6), p.28
Main Author: Jacobs, Sol
Format: Magazinearticle
Language:English
Subjects:
Chemical reactions
Cross country running
Discharge
Electronic devices
Energy
Energy consumption
Extreme environments
Flux density
Freezing
Furniture stores
Heat
Lithium
Lithium batteries
Lithium chloride
Manganese dioxide
Marathons
Organic chemistry
Runners (Sports)
Running
Short term
Spools
Sulfates
Temperature
Thin films
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Summary:ONLY CERTAIN BATTERIES CAN OPERATE FOR DECADES IN EXTREME ENVIRONMENTS Lithium-based batteries have high intrinsic negative potential, exceeding that of all other metals, with an operating current voltage (OCV) ranging from 2.7 to 3.6 V. Lithium batteries are also non-aqueous, with the absence of water enabling them to endure extreme temperatures without freezing. Bobbin-type LiSOCl 2 batteries feature the highest capacity and highest energy density of any lithium chemistry, along with an extremely low annual self-discharge rate (less than 1% per year), enabling certain low-power devices to operate for up to 40 years. Passivation occurs when a thin film of lithium chloride (LiCl) forms on the surface of the lithium anode, thus impeding the chemical reactions that result in battery self-discharge. [...]a lower-quality bobbin-type LiSOCl 2 battery designed for ultra-long life can lose 3% of its normal capacity each year to self-discharge. [...]30% of its initial capacity is exhausted every 10 years, making 40-year battery life impossible to achieve.
ISSN:0013-4872
1944-9550