Trojan Smart Carbon Batteries

Trojan Smart Carbon Batteries
Trojan Smart Carbon Batteries
Trojan Smart Carbon Batteries

Trojan Battery ( introduced a product enhancement to address sulfation issues with batteries that are cycled at a partial state of charge (PSOC)—a common RE system scenario. When batteries are not fully charged, sulfation—the buildup of sulfate crystals on the batteries’ lead plates—reduces the available surface area of the lead plates, which lowers capacity and increases internal resistance. Batteries that become sulfated need to be replaced more frequently. The company’s “Smart Carbon” additive, standard in its industrial and premium flooded batteries, is claimed to help decrease the rate of sulfation and improve charge acceptance. Trojan estimates a cycle life increase of up to 15% with its Smart Carbon batteries for systems that operate in PSOC.

Justine Sanchez

Comments (3)

Donald Houdek's picture

Note that in the above press release it states..
"is claimed to help decrease the rate of sulfation and improve charge acceptance."

Here is a little more information regarding "CARBON" additive:
Carbon Additives
Not The Right Solution
For Sulfation Issues In
Renewable Energy Applications

There's been some talk recently about the use of carbon additives to reduce the effects of sulfation in renewable energy batteries. Sulfation can occur when batteries are operated in a partial state of charge (PSOC) application, common when batteries are charged with solar cells, wind turbines and other unpredictable power sources.

Several battery research groups have found that by using various new types of carbon in the negative plates of VRLA batteries, the sulfation issue could be addressed. "These new carbons are often referred to as smart carbon, hyper carbon, ultra carbon, graphene or nano-carbon," says Fred Wehmeyer, Senior VP Engineering at U.S. Battery Manufacturing. "But they may or may not be composed of carbon nano-tubes that are still too expensive for large scale applications.”

The significance of this is that negative plate sulfation is a phenomenon that applies specifically to VRLA (AGM & GEL) batteries. Smart carbon technologies intended to address negative plate sulfation in VRLA batteries do nothing to address sulfation of the positive plates in a flooded deep cycle battery, which is the primary issue when these batteries are undercharged or used in PSOC applications. Read the full story on our U.S. Battery Blog
Time will tell....

Jim and Elaine Stack's picture

Its still LEAD and that is a bad toxic material. Nickel Iron or Lithium are longer lasting and much better for the environment. When will Trojan offer some ECO choices?

Todd Cory_2's picture
Todd Cory_2 (not verified)

i understand most all lead is recycled as it is another of our many depleting, non-renewable resources... so any toxicity is mitigated. i have lead calcium wet cells on my home system. they should easily go 25 years.

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