from chemistry to pack
What “Generation” Actually Means in Lithium Iron Phosphate Lithium iron phosphate (LFP) has spent the last five years closing the energy density gap with nickel-based chemistries, and almost none of that progress has come from changing the underlying LiFePO₄ crystal. Instead, the industry has been fighting a materials-processing battle centred on one metric: compaction density. … Read more
AION Engineering INC Anode Electrode Porosity vs. Energy Density: The Turning Point in High-Energy Lithium-Ion Cells In lithium-ion cell design, one of the most critical relationships shaping performance is the link between anode porosity and energy density. As energy density increases, conventional design logic suggests reducing anode porosity to pack more active material into the … Read more
In the battery application world everyone is always looking for power vs energy density. Wanting the maximum of both. However, as we know from a comparison of power vs energy cell design it is nearly impossible to have both. In simple terms the energy cell has thicker layers of active material, thinner current collectors and … Read more
AION Engineering INC The performance of a lithium-ion cell is fundamentally governed by its material chemistry, particularly the composition of its cathode active material (CAM). In this article, we focus specifically on the role of nickel content in Nickel Manganese Cobalt Oxide (NMC) materials and how it correlates with energy density and power capability. Although … Read more
AION Engineering INC In previous discussions, we explored the relationship between cell capacity, C-rate, and electrode density. A key parameter influencing electrode density—and thus overall cell performance—is the particle size distribution (PSD) of the active material. Why PSD Matters The PSD of active materials directly impacts their tap density and compactibility—two critical factors that determine … Read more
The energy storage industry just crossed another important milestone. CATL has launched the world’s first 9MWh energy storage system built for mass production. The system is called the TENER Stack. This isn’t simply a larger container. Rather than building a single oversized unit that would trigger regulatory and logistical issues, CATL introduced a modular “two-in-one” … Read more
AION Engineering INC The Relationship Between Electrode Density and Peak Discharge C-Rate In lithium-ion cell manufacturing, the calendering process is often not considered a critical step. However, it directly influences key performance parameters, such as capacity, C-rate capability, and cycle life. Therefore, calendering plays an important role in optimizing cell performance. The Importance of Calendering … Read more
Is there a relationship between Cycle Life and Energy Density? This is a mix of chemistry, age, size and manufacturers. Hence a lot of other information mixed into this, but there is a trend. Adding trendlines might be generous, but what we can see is that low energy density cells range in cycle life from … Read more
Battery cell ragone plot is power density vs energy density. A plot often used to compare chemistry. This plot needs to consider peak versus continuous power. The following plot is from the Cell Database. Note: as this is specification sheet data and the energy content is not established at the given discharge rate it is … Read more
Pack Volumetric Energy Density is the total nominal energy of the battery pack divided by the volume it occupies. The battery pack volumetric energy density is a simple calculation: The easiest is to perhaps just look at the best and worst of the Wh/litre values: However, the battery pack volumetric energy density is not so … Read more