Tesla migrates batteries to Lithium Iron Phosphate Technology

In the recent presentation of Tesla’s 2nd quarter results, Elon Musk confirmed that lithium-iron-phosphate batteries (often referred to as LFP) will play a key role in powering the company’s larger vehicles, starting with the Shanghai Model 3 :

Total vehicle efficiency has gotten good enough — with Model 3 for example — that we actually are comfortable having an iron phosphate battery pack in Model 3 in China. That will be in volume production later this year. So we think that getting a range that is in the high 200s — almost 300 miles — with an iron phosphate pack taking into account a whole bunch of of powertrain and other vehicle efficiencies.
And that that frees up a lot of capacity for things like the Tesla Semi and other projects that require higher energy density [batteries]. So you have two supply chains that you can tap into: iron phosphate or nickel-based chemistries.

The fundamental advantage of LFP is that, compared to the nickel-based cathodes traditionally used, its main constituent minerals – iron, phosphates and, more recently, traces of manganese – are very abundant and relatively inexpensive. Iron ore, for example, is mined at a volume of nearly 3 billion metric tons each year, a thousand times more than the approximately 2.5 million tons of nickel that are mined annually.

Then there are the well-known problems surrounding cobalt, with ethically complex supply chains, limited quantities mined (most of which are already claimed for battery manufacturing), and high prices.

Tesla uses at least two varieties of nickel-cobalt batteries, from Panasonic (NCA) and LG Chem (NCM), and has tried to minimize the amount of cobalt needed, but there is always some exposure to cobalt, and exposure to nickel is obviously unavoidable, it is the key ingredient in this class of battery chemistry.

Overall, therefore, key minerals for LFP batteries are much more abundant, and prices are cheaper (and more stable) than those for nickel-based battery minerals. This translates into the fact that LFP batteries are already slightly cheaper than nickel-based batteries per kWh. Because the constituent minerals are so inexpensive, and the energy density of LFP cells is constantly improving, this price per kWh could drop even further in the coming years.

Article: Lithium batteries for Electro-mobility

The French company PowerTech Systems offers energy storage solutions for electro-mobility and last mile.

A French startup specialized in the market of electrical energy storage solutions using Lithium-Iron-Phosphate technology (LiFePO4 or LFP), PowerTech Systems designs and markets battery solutions that combine modularity, power, reliability, safety and above all long service life….

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The E-mobility market today

Electro-mobility becomes more democratic

It is the ability or property for people or objects to move in a space, by a means of transport using partially or totally electrical energy.

Today, electromobility meets a major challenge in the fight against global warming. That of the replacement of polluting thermal engines by electric models more respectful of the environment.

According to figures released by the IEA (International Energy Agency), the number of electric cars in circulation around the world has sharply increased in 2016. With more than 750,000 units sold (40% more than the previous year), the market of green vehicles has exceeded the symbolic bar of 2 millions of units.

Some key figures:

  • China has become the main market for electrically powered cars. With more than 336,000 new registrations, it concentrates more than 40% of global sales in 2016. Moreover, there are 200 million electric two-wheelers and more than 300,000 electric busses.
  • In second place is Europe with more than 215,000 green cars in 2016.
  • In Norway, electric cars account for 1/3 of new car sales.
  • Next come the United Kingdom, France (where electromobility represents only 1.5% of the market share), Germany, Sweden and the Netherlands.

Article : PowerTech solutions for Self-consumption

Since July 2016, French national law supervises renewable energy Self-consumption for end users.

Self consumption defines a producer (self-producer) that partially or completely consumes energy electric energy produced by his own installation.

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Self-consumption with batteries

It represents a real advantage as it maximises energy consumption locally produced.
Through this system, it is easier to reduce energy bill and get a return on investment.
Adding a battery considerably improves its efficiency. This system storages the energy produced during the day (…). See the article (only in French)

PowerTech Systems offers an advanced energy storage system with lithium ion technology. It entirely prevents from explosion or fire risks (…). See the article (only in French)

The continuous supply of electrical energy is a key issue to be addressed

The solar panels do not work at night and badly with bad weather. Also, wind turbines depend on wind conditions. Generators depend on the supply of gasoline.

The energy generated at a certain time of the day must be stored to optimise domestic use, without disrupting supply and with permanent control of the remaining energy reserve.
The batteries required for energy storage must be durable, reliable, environmentally friendly, and must be able to supply energy for long periods of time without being powered by the grid.

The Self-consumption market in France

In 2017,

  • about 15 000 households self-consume their own-produced electricity,
  • and 5,000 other households sell their surplus.
  • According to the Commission de régulation de l’énergie (CRE), France has 14,000 self-consumers in 201
PowerRack® Lithium Ion batteries system is now approved by Bureau Veritas Marine & Offshore
PowerTech Systems present on the electromobility market
Energy storage: PowerTech Systems Plug&Play solutions