FOCUS ON GREEN TECHNOLOGY
Why lithium ion phosphate?
Lithium ion phosphate (LiFePO4 or LFP) is the safest of the commercially available li-ion battery types. Of an LFP cell
rated voltage is 3.2V (lead acid: 2V / cell). Therefore a 12.8V LFP battery consists of 4 cells connected in series.
and a 25.6V battery consists of 8 cells connected in series.
A lead-acid battery will fail prematurely due to sulfation in the following cases:
• If the battery runs for long periods of time (eg if the battery is rarely fully charged or not fully charged at all).
• If it remains partially charged or even worse fully discharged (during the winter on a yacht or caravan).
An LFP battery does not need to be fully charged. Even in the case of partial charging instead of a full charge, the service life is partially
recover. This is a major advantage of LFP over lead-acid batteries. Other advantages are its wide operating temperature range, excellent cycle performance, low internal resistance and high efficiency (see below).
Therefore, LFP is the preferred option for very demanding applications.
Energy efficiency is vital in many applications (especially grid independent solar and / or wind)
Round-trip energy efficiency of an average lead-acid battery (discharge from 100% to 0% and recharging to 100%)
The round-trip energy efficiency of an LFP battery is 92%. The charging of lead-acid batteries becomes inefficient when the 80% charge state is reached, resulting in 50% or even lower efficiencies in solar systems (where the battery operates from 70% to 100% charge state) where several days of energy reserves are required. In contrast, an LFP battery will achieve 90% efficiency even in shallow discharge conditions.
Size and weight
Space saving up to 70%
Saves up to 70% weight
Is it expensive?
LFP batteries are expensive compared to lead-acid. But in demanding applications, longer service life, superior
The high initial cost of reliability and excellent efficiency will more than compensate.
Cell voltages, temperature and alarm status can be monitored via Bluetooth.
Very useful in locating a (potential) problem, such as cell imbalance