In the Special Project Implementation Plan for Promoting Strategic Emerging Industries “New Energy Vehicles” (2012–2015), power batteries and their management system are key implementation areas for breakthroughs. However, since 2016, the Chinese government hasn’t published similar policy support.
Overall, the stratospheric ozone issue, acidification issue, fine particulate matter, ecological toxicity, eutrophication of water bodies, human health, mineral resources, and water resources during the life cycle of the power battery are all insensitive to electric power energy, with data fluctuations below 2 %.
As one of the core technologies of NEVs, power battery accounts for over 30% of the cost of NEVs, directly determines the development level and direction of NEVs. In 2020, the installed capacity of NEV batteries in China reached 63.3 GWh, and the market size reached 61.184 billion RMB, gaining support from many governments.
The battery design uses carbon fiber in both the anode and cathode, where it also serves as a reinforcement and a current collector. That negates the need for current collectors made of heavy materials like copper, as well as conflict metals like cobalt in the electrode design.
Their case study manifested that the driving range could be increased by 70% for lightweight vehicles with feasible structural battery designs. In addition, the performance analysis showed that separator thicknesses, electrolyte conductivities, and current collector designs are critical to the electrical performance.
For structural batteries, the solid nature indicates that they can enhance not only the tensile and compressive properties of a battery, but also load-transfer between different layers and thus improve flexural properties.
Exploring the Problem of New Energy Vehicle Battery
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Exploring the Problem of New Energy Vehicle Battery
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