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Electrified cars are grabbing market share - Power electronics market EV / HEV - Yole Développement

Power Electronics for EV/HEV 2016: Market, Innovations and Trends

Published
25/05/2016
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by Yole Développement
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EUR 6 490
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The automotive market is turning electric

Sales of battery electric cars doubled between 2014 and 2015, an occurrence considered the first sign of the widespread acceptance of electrified cars. Pushed by aggressive targets in terms of CO2 emissions, electrification is undoubtedly the “greenest” option for car makers, with “diesel-gate” strengthening this impression and improving the public’s opinion of electric cars. The offer for electric and hybrid cars is growing by leaps and bounds, with premium car makers like Aston Martin and Jaguar also involved, and established car makers like General Motors launching affordable electric vehicles with sufficient range to be competitive with gas-powered vehicles. Once seen as a fancy-yet-flawed technology, electric cars are now becoming attractive thanks to players like Tesla and the financial benefits of owning an electric vehicle. The development of a charging infrastructure and an increasing range have also helped boost the market.

Considering all of these advantages, along with the political push for the mass adoption of electric cars, the market could be even higher. However, in order for electrified cars to enjoy global appeal some obstacles still must be cleared, such as charging regulations and the high sticker price compared to ICE vehicles.

In this report, you will find a detailed analysis of electrification’s pros and cons, as well as updated market metrics and forecasts for electric cars (by electrification type) and associated power electronics (inverter, power module, and power device). Market insights are also provided for the batteries used in electrified vehicles.

Electrified cars are grabbing market share

Power Electronics: technological innovations and breakthroughs will be driven by automotive evolution

EV/HEV represented 30% of the overall power module market in 2015. By 2021, we expect this share to reach almost 50%, meaning a $2.3B market and 13M cars. Power electronics’ technical evolution is thus following automotive requirements.

Increasing the power density is one main challenge still to be conquered: volume constraints are formidable inside a car, and power is already high. Innovations are needed at all levels of power electronics (inverter, power module, and power device), and also on the battery side. Enhancing energy density to achieve higher autonomy ranges, while at the same time decreasing the battery pack price, is mandatory to generalizing the use of electric cars.

At inverter level, the general trend is to increase integration. Each electrification type demands a specific solution. In the case of mild hybrid vehicles, where volume is very limited and power is relatively low, more and more cars are equipped with a smart motor (inverter + motor) solution. For full hybrid and plug-in hybrid vehicles, other solutions are employed, such as a “centralized power electronics box”. For battery electric vehicles, many different integrated solutions are being developed (in-wheel drive for instance). This report provides presentation and analysis of different technological solutions per electrification type.

At power module level, thermal management and reliability are the two main characteristics for improvement. Progress has been made both on module design and on materials used (silver sintering, double-side cooling, over-molded modules, etc.). Among the different module shapes offered (i.e. 6-in-1, 2-in-1), Yole is analyzing the different solutions chosen by car makers for their cars, as well as general trends for the future.

Big opportunities are ongoing at the power device level thanks to the growth of wide band-gap materials like gallium nitride and silicon carbide. Toyota’s announcement that silicon carbide (SiC) will be implemented en masse in their cars by 2020 confirms that SiC for automotive is a reality. Nevertheless, Si IGBTs still have advantages (i.e. maturity, cost, multi-sourcing) and room for improvement. EV/HEV represented 23% of the IGBT market in 2015, and Yole expects this share to grow to 39% by 2021 for a $2B market.

Mechatronics trends for EV HEV

Market growth can reshape the entire value chain

The electrified vehicles market is expected to quadruple from 2015 – 2021, and the associated power electronics market at inverter level will reach $13B by 2021 too. This huge added value is attracting many players, in particular at power module level, where companies from the inverter side are getting involved and hoping to gain market share (for instance Continental, which is integrating its own power module into its solution). Meanwhile, players from the pure power electronics field like Semikron and Siemens are also entering the automotive market via the powertrain (power module or inverter).

Today, inverters are mainly provided to car manufacturers by tier 1 suppliers with off-the-shelf products. This solution is employed by car makers that still lack the know-how to make their own power electronics system. The drawback of this approach is that car makers aren’t able to differentiate from their competitors and risk losing their identity, which once came from the thermal engine. This is the main reason why car makers are becoming increasingly intrusive at inverter level. In the future, we expect car makers to secure their own powertrain and leave auxiliary converters to suppliers. In this new EV/HEV report, Yole analyzes the business models and supply chain evolution, including newcomers and the positioning evolution.

Market growth implies changing business models

Electric and autonomous vehicles: a common future?

During the last few months, several projects combining autonomous and electric vehicles have been widely discussed in the press: Apple, Google, Tesla Motors, and Faraday Future have all been named as leaders in this field. An overview of the potential synergies and differences between autonomous and electric vehicles is provided in this report.

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Report objectives

What we got right, what we got wrong

Companies cited in the report

Executive Summary 

News wrap-up

Market evolution for electrified vehicles

  • Different types of vehicles and their market
  • What made the market grow in the last years?
  • What are the remaining brakes for electrified cars growth?
  • Future and perspectives for electrified vehicles
  • What about Chinese market?

Power electronics and EV/HEV 

Technology evolutions

  • Power density increase inside electrified vehicles
  • Innovations at inverter level: topology and mechatronics

Innovations at module level: power packaging and integration

Power devices: silicon and WBG

Energy storage: a key challenge to face

  • Batteries in electrified vehicles
  • Fuel cell vehicles

Business model, supply-chain and leaders

Innovations and evolution perspectives

Conclusion

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