CATL, the new generation of batteries with cell-to-pack architecture is ready

The Chinese battery manufacturer CATL announced that his third generation cell-to-pack batteries are ready and will be available from next April. According to the Chinese press, the new battery is called internally “Kirin Battery“and, compared to the previous generation, it offers a higher energy density. As we know, the cell-to-pack technology offers several advantages. First of all, it does not provide for the division of the accumulator into modules. In this way, for the same volume, it is possible to to insert more cells.

This technical choice does not only allow to increase the energy density because it also simplifies the construction of the battery pack. The absence of modules, in fact, requires the presence of a lower number of wiring. Hence, these batteries are also easier to make and less expensive. However, this technology also has negative aspects. For example, given the absence of modules, the cooling system must be rethought. Furthermore, a possible repair would be much more complicated.

Waiting to know more about CATL’s third generation cell-to-pack batteries, let’s see the first data of their specifications that have been reported in the Chinese press. The Chinese manufacturer offers these batteries both with LFP cells (lithium-iron-phosphate) and both with cells of the NMC type (nickel-manganese-cobalt).

For the LFP version, we are talking about a density of 160 Wh / kg (290 Wh / l). This is a value that exceeds that of BYD’s LFP batteries which reached 150 Wh / kg in the long range version of the BYD Yuan Plus model. As we know, CATL is also a Tesla supplier. It is possible that these batteries can be used by the American car manufacturer. In that case, the breakthrough would be important as the Tesla Model 3s made in China use LFP batteries with a density of 125 Wh / kg.

As regards, however, the new NMC batteries, we speak of an energy density equal to 250 Wh / kg (450 Wh / l). Premises, therefore, very interesting, We hope to know much more soon.


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