I saw arguably new and interesting lithium battery which is Lithium Titanate Battery(LTO). It has high discharge and charge current characteristic. Also, it has lower degradation graph when comparing with lithium ion battery. For further information :
I am planning to build 18s 1p battery pack. My battery cell features: 2.3 volt nominal voltage. It varies between 1.5-2.8 volts. Single cell can charge and discharge 400 amps continuously.
Short: You very likely need a balancer.This page quotes a user who says his SCIB LTO batteries work well without one. Other people sell LTO balancers and other brands are generally ''less reputable'' than Toshiba''s SCIB.
The "good news" is that LTO balancing should be no harder than for standard LiIon cells - except that, if charging is carried out at the fast charge rate then or at the maximum permissible charge and discharge rates the switches used will need higher current ratings for a given cell Ah capacity. It would be possible to voltage monitor all cells in a string and enter balancing mode at lower charge rates when any one cell reaches its permissible limit.
LTO (Lithium Titanium Oxide) batteries have been available commercially for ''some years''. The Toshiba "SCIB" LTO battery was introduced in 2008 zuki use the Toshiba "SCIB" LTO battery in part of the battery in a number of their electric vehicles.
Substantially higher charge and discharge rates, due to the use of high surface area Lithium Titanate ''nano crystals'' rather than Carbon on the Anode. An area increase of about 25 x compared to carbon yields the increase in charge/discharge rate.
Substantially higher claimed cycle life at 100% DOD. Claimed lifetimes vary quite widely with manufacturer and "Caveat Emptor" applies with respect to lifetimes and utility of cells from little known manufacturers.
In the Suzuki EVs the LTO battery is usually used as a "front end" to the main LiIon battery, allowing fast charge and discharge for energy regeneration and hard acceleration purposes. LTO chemistry has lower energy density than standard LiIon technology making it unattractive in mobile applications where its significant improvements over LiIon are not highly valued.
Demand for SCiB™ is growing fast, and Toshiba is expanding production capacity through capital investment and alliances. In Japan, the company will construct a new production facility in Yokohama, Kanagawa prefecture, and reinforce the current manufacturing facility, Kashiwazaki Operations in Niigata prefecture. Separately, in 2017, Toshiba, Suzuki Motor Corporation and Denso Corporation agreed to establish a joint venture company to produce automotive lithium-ion battery packs in India, and Toshiba will also collaborate with Johnson Controls Power Solutions in the U.S.
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