The Chinese Tesla Model Y will carry CATL’s M3P batteries with LMFP technology

The Chinese battery manufacturer CATL will begin supplying Tesla with its M3P batteries whose marketing will start early next year, but are already mass-produced at their facilities. The information, which comes from the local environment Late Postindicates that they will be implemented in Tesla Model Y units that have a battery of 72 kWh capacitywhich will be manufactured in Shanghai Gigafactory early next year.

Although some doubts had been raised about the nature and composition of M3P batteries of CATL, finally it is about LMFP batteries of lithium ferrophosphate to which manganese is added. By adding this new component to the well-known LFP formula, the working voltage of the cells and the energy density are increased without this implying a significant increase in production costs, since manganese is a particularly cheap material.

The material used in CATL’s M3P batteries will be supplied by Shenzhen Dynanonic Co, which has announced that it plans to produce 110,000 tonnes of LMFP material in the second half of this year. In Tesla’s plans there is also the production of LMFP batteries, but its development cycle is much longer than that of CATL, so its strategy goes through first obtain these batteries from third-party suppliers.

After completing the tests with the samples sent by the Chinese manufacturer, Tesla will take approximately three months to close the terms of the agreement, carry out the contract for the acquisition of the batteries and start the production of the vehicles with them already implemented.

Batteries are generally named after the materials that make up the cathode. LMFP cathode materials can be made by adding manganese to LFP cathode materials that are currently used to make LMFP batteries. It is also possible to dope LMFO materials with aluminum or magnesium to create the cathode. In the case of M3P batteries, lithium ternary materials and LMFP materials are added to the cathode, a solution that solves the problem of short cycle life and high internal resistance of LMFP batteries according to information from LatePost.

M3P batteries use the olivine structure of LFP as the base lattice structure. By doping two of the metallic elements, magnesium, zinc and aluminum replace iron at some points, explains a research note from Shengang Securities published at the end of last month. This design generates a phosphate of ternary materials that improves charge and discharge capacity and stability of charge and discharge cycles.

CATL’s vice president and research director, Wu Kai, assured during a press conference that the new M3P batteries are already being mass-produced at its facilities and will be available for sale to starting next year. According to Wu, these batteries are intended for electric cars that require a autonomy of more than 700 kilometers (in the NEDC cycle).

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