China’s battery electric vehicles lead the world

Achievements and Technological Breakthroughs of China’s Battery Electric Vehicles

A paper describing the achievements and technological breakthroughs of China’s battery electric vehicles (BEVs) was recently published in the journal Green Energy and Intelligent Transportation. The paper provides a summary of the current research situation and progress of the three core components of the “technology system architecture for BEVs”, namely, BEV platform, charging/swapping station, and real-time operation monitoring platform, and their key technological points.

Background

China’s automotive industry started late and had a weak foundation, leading to a long-term dependence on imported key technologies. To overcome this challenge and achieve “lane changing and overtaking”, the development of electric vehicles (EVs) has become an important choice for China’s automotive industry.

This process can be divided into four stages:

1. The first stage started in the early 1990s.
2. The second stage started at the beginning of this century, coinciding with China’s tenth “Five-Year Plan” period.
3. The third stage was the demonstration application stage marked by the green transportation of the 2008 Beijing Olympic Games.
4. The fourth stage began in 2014, the first year to open the era of Chinese electric vehicles’ commercial application.

Key Technologies of BEVs

To systematically solve the key problems of BEVs such as “driving range anxiety, long battery charging time, and driving safety hazards”, China has proposed a “system engineering-based technology system architecture for BEVs” and clarified its connotation.

The three key technologies of BEVs consist of:

• Motor and controller
• Battery and management system
• Vehicle controller

The current technical research is focused on:

• Promoting the power density, system efficiency, and control performance of the motor drive system
• Enhancing the energy density, safety, and durability of the power battery system
• Improving the vehicle-level control system architecture to achieve intelligent integrated control, reduction in energy consumption, improvement of the all-climate adaptability, and all-day safety of EVs

Charging and Swapping Infrastructure

The construction of charging/swapping compatible infrastructure, the application of new technologies such as wireless charging, and the integrated control of vehicle-pile-grid interconnection are key to solving the charging problem of BEVs and improving convenience of use. As the driving range of BEVs increases continuously, the demand for new charging technologies such as super-fast charging and charging with micro-grid energy storage is evident.

Operational Safety

Solving the operational safety problems of BEVs is crucial. To achieve this, China is focusing on:

• Improving operational safety monitoring based on the terminal-network-cloud architecture
• Building a digital twin model of power batteries
• Enriching diagnosis methods for BEV power battery SOH
• Improving safety early warning accuracy and extending the duration of safety early warnings
• Implementing active and passive safety protection for the whole life cycle of power batteries

China’s Leadership in BEV Technologies

After more than 20 years of high-quality development, China’s new energy vehicle market has ranked first in the world since 2015. China’s BEV technologies are currently leading global development, and complete sets of technologies are exported to the European Union. In the future, battery swapping technology and operating business models will receive unprecedented development. Additionally, a carbon asset platform for EVs in China will provide a foundation for supporting the development of the carbon market in the future.

Reference

Journal: Green Energy and Intelligent Transportation

Title of original paper: China’s battery electric vehicles lead the world: achievements in technology system architecture and technological breakthroughs

Author: Hongwen He, Fengchun Sun, Zhenpo Wang, Cheng Lin, Chengning Zhang, Rui Xiong, Junjun Deng, Xiaoqing Zhu, Peng Xie, Shuo Zhang, Zhongbao Wei, Wanke Cao, Li Zhai

Affiliations: National Engineering Research Centre of Electric Vehicles, Beijing Institute of Technology, Beijing, 100081, PR China

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SDGs, Targets, and Indicators

1. SDG 7: Affordable and Clean Energy

   • Target 7.2: By 2030, increase substantially the share of renewable energy in the global energy mix.
   • Indicator 7.2.1: Renewable energy share in the total final energy consumption.

2. SDG 9: Industry, Innovation, and Infrastructure

   • Target 9.1: Develop quality, reliable, sustainable, and resilient infrastructure.
   • Indicator 9.1.1: Proportion of the rural population who live within 2 km of an all-season road.

3. SDG 11: Sustainable Cities and Communities

   • Target 11.2: By 2030, provide access to safe, affordable, accessible, and sustainable transport systems for all.
   • Indicator 11.2.1: Proportion of the population that has convenient access to public transport, by sex, age, and persons with disabilities.

4. SDG 13: Climate Action

   • Target 13.2: Integrate climate change measures into national policies, strategies, and planning.
   • Indicator 13.2.1: Number of countries that have integrated mitigation, adaptation, impact reduction, and early warning into primary, secondary, and tertiary curricula.

Table: SDGs, Targets, and Indicators

Analysis

1. Which SDGs are addressed or connected to the issues highlighted in the article?

The issues highlighted in the article are connected to the following SDGs:

• SDG 7: Affordable and Clean Energy
• SDG 9: Industry, Innovation, and Infrastructure
• SDG 11: Sustainable Cities and Communities
• SDG 13: Climate Action

2. What specific targets under those SDGs can be identified based on the article’s content?

Based on the article’s content, the following specific targets can be identified:

• Target 7.2: By 2030, increase substantially the share of renewable energy in the global energy mix.
• Target 9.1: Develop quality, reliable, sustainable, and resilient infrastructure.
• Target 11.2: By 2030, provide access to safe, affordable, accessible, and sustainable transport systems for all.
• Target 13.2: Integrate climate change measures into national policies, strategies, and planning.

3. Are there any indicators mentioned or implied in the article that can be used to measure progress towards the identified targets?

Yes, there are indicators mentioned or implied in the article that can be used to measure progress towards the identified targets:

• Indicator 7.2.1: Renewable energy share in the total final energy consumption.
• Indicator 9.1.1: Proportion of the rural population who live within 2 km of an all-season road.
• Indicator 11.2.1: Proportion of the population that has convenient access to public transport, by sex, age, and persons with disabilities.
• Indicator 13.2.1: Number of countries that have integrated mitigation, adaptation, impact reduction, and early warning into primary, secondary, and tertiary curricula.

Behold! This splendid article springs forth from the wellspring of knowledge, shaped by a wondrous proprietary AI technology that delved into a vast ocean of data, illuminating the path towards the Sustainable Development Goals. Remember that all rights are reserved by SDG Investors LLC, empowering us to champion progress together.

Source: eurekalert.org

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