Power battery cost will drop to $100/kWh

Although the cumulative sales of electric vehicles in the world has reached more than 1 million, the construction of charging facilities is becoming more and more perfect, but to achieve real popularity, price is still the biggest consideration in consumers' minds. Recently, the United States General Motors Group (GM) held a global conference in Michigan, the company's executive MarkReuss mentioned that the future cost of electric vehicle lithium-ion battery is expected to drop to 145 US dollars / kWh, and even more likely to reach 100 after 2021. USD/kWh level.

Such predictions are not unfounded. Tesla Electric Vehicles (Tesla) has also stated that battery costs will fluctuate significantly in 2020, with the help of advances in battery technology, the growing scale of sales also helps to distribute battery costs.

What is the concept of the $100/kWh price?

The General Motors Group believes that the current battery cost is about $300/kWh. Taking the Tesla model as an example, the 70 kWh battery of the basic model 70 d is deducted from the US federal tax credit and subsidy, and the current price is $71,200 (post-drive, no option), of which the battery accounts for 2.1. The cost of 10,000 US dollars shows that pure electric vehicles are still affected by the cost of batteries. Therefore, major auto companies are looking forward to benefiting from lowering battery costs in the future, and thus significantly adjusting vehicle prices.

GM's Chevrolet's first pure electric car bolt is expected to begin mass production in 2017, with a cruising range of 200 miles (322 km) and a price of about $37,000. The sales target is currently the best-selling Nissan Leaf (leaf). More and more new models are joining the scale competition. The biggest beneficiary is of course consumers. In the face of the high market share of the wind, what advantages will there be in the future? Everyone is watching.

How and when will it fall to $100/kWh?

Sakti3 may play a key role in the battery life of the Chevrolet SonicEV launched by GM in 2017. Sakti3 was founded by Ann Marie Sastry, a former engineering professor at the University of Michigan, and supported by the General Motors Ventures (GMVentures) department, which in August this year, Sastry claimed The solid-state battery they produce is more than twice the energy density of the best lithium-ion batteries on the market today, which may help GM achieve a $100/kWh forecast. If the Chevrolet SonicEV is equipped with this battery, the cost will be the only current. One-fifth the cost of a lithium-ion battery.

Ultra-thin battery prototype in Sakti3 lab for testing

Sakti3's mysterious battery uses new materials and production techniques to achieve higher energy density. They claim to be able to store 1000 watt-hours per liter, and the cruising range of electric vehicles can be increased from 256 miles to 480 miles (about 772 kilometers). Low, fast charging and discharging, more environmentally friendly, and safer than some standards. This technology eliminates the use of flammable liquid electrolytes in traditional lithium batteries, technological advances through its high-energy storage materials, and most importantly, its lower price, about $100 per kWh, far below current 200 to 300 The market price of the dollar can be applied to electric vehicles that are subject to cost and mileage restrictions in the future. However, KevinSee, an analyst at the Lux Institute, believes that Sakti3 still faces cost and production challenges.

GM's data shows that the economies of scale of lithium-ion battery production may be earlier than previously expected. Two years ago, the Viggo research institute predicted that the battery component would have reached $180/kWh in the next decade. NatureClimateChange's 2014 study predicts that the battery composition is about $300/kWh, while GM's forecast of $145/kWh is clearly much lower than these research institutions.

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