Tadiran Batteries' new family of long-life rechargeable lithium-ion cells, the TLI Series, is designed for use in harsh environments.
Standard rechargeable lithium-ion cells have inherent drawbacks, including short operating life (five years max), low maximum cycle life (1,000), high annual self-discharge (up to 60 percent per year), and a limited temperature range of 0C to 60C with no possibility of charging at low and high temperatures, but TLI Series batteries utilize technology found in Tadiran's patented hybrid layer capacitor (HLC).
The HLC stores the high current pulses required for two-way wireless communications. It has been field-proven in millions of cells to deliver more than 25 years of service life. TLI Series batteries modify this technology to deliver reliable, long-term performance under extreme environmental conditions.
TLI Series batteries feature:
Wider operating temperature (-40C to 85C, with storage up to 90C)
Ability to deliver high current pulses (up to 5A)
Low annual self-discharge rate (less than 5 percent)
Up to five times more life cycles (5,000 full cycles)
Longer operating life (10 years)
Charging possible at extreme temperatures (10 hour rate)
Glass-to-metal seal (where others use crimped seals that are prone to leakage)
TLI Series cells can be recharged using DC power, or they can be used in conjunction with photovoltaic solar systems or other energy-harvesting devices to deliver reliable long-term power. They are available in several standard configurations: AA-size (1,550), 1,530, and 1,520, as well as custom battery packs.
While this sounds like good stuff - I am a little confused. It seems a new line of batteries are being introduced with the claim that the technology has been proven to be reliable for 25 years in the field. The new specs look very promising but I am wondering what are the differences between the old batteries with the 25 year service life used in the meters shown on the company website and the new line that is being introduced? Are we still comparing apples to apples here?
I don't know how Tadiran does it, but they've been very successful in making low-leakage batteries that can last as long as 25 years in energy scavenging applications.
Our HLC is used in conjunction with our primary, non-rechargeable lithium cells which keeps it from being totally discharged and therefore never see 5000 cycles.
This is how it can power applications for more than 25 years.
Great to see this energy dense tech getting a push to commercialization. Most on the time, boastful battery news comes with the tag, still in development or not available any time soon. Hope to see more energy dense cells in the near future.
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