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In the "Expert Perspective" of the Power Battery Blue Book (2018), the consultant team of this book examined the development situation of the power battery industry in China and even the world, and made brilliant comments from multiple dimensions such as technology trend, cost expectation, difficulties and challenges, upstream and downstream industrial chains, associated technology chains and new business forms. Wang Cheng, the expert perspective figure of this issue.

Grasping Development Opportunities and Promoting High Quality Development of Power Battery Industry

On the premise of a favorable overall development environment for new energy vehicles in China, the number of new energy vehicles in China has been greatly improved in terms of policy standards, industrial supporting system, technology research and development, business model, promotion number, infrastructure, investment and financing strength, talent training, etc., providing a source of power for high-quality development of the industry. Among them, the new energy vehicle power battery industry, as the core component, has also been rapidly developed and expanded. Its scale, volume and quantity have taken the lead in the world. Under such a favorable development momentum, we still need to look at the current situation calmly. The situation is still serious, large but not strong. With a view to the future, we should steadily grasp the development opportunities, continue to pay attention to the safety of power batteries, steadily improve product quality, constantly optimize industrial upgrading, reasonably position the use of products, and truly make products and enterprises solid. The author suggests that we should focus on the following points.

First, continue to attach importance to the safety of power batteries. In the past two years, in response to the urgent need of electric vehicles to improve driving range, power batteries have also been increasing energy density. The application of new materials with high specific capacity has also increased the potential safety hazard of the battery body; Safety is the cornerstone of the development of the power battery industry and the new energy vehicle industry. It cannot be ignored and relaxed at any time. Every step taken to improve the energy density of the power battery must be cautious and safety must be ensured.

Second, guide the combination of iteration and accumulation of power battery technology and products. The financial subsidy standards for new energy vehicles in recent two years are mainly related to the indicators of power battery energy density and vehicle driving mileage. Although the 2018 new version of the subsidy policy is more refined and improved, the iteration cycle for the indicators of product energy density is too short, leading some enterprises to blindly pursue energy density and high subsidies while neglecting the optimization of product comprehensive performance, making it difficult for enterprises to accumulate technology and products, From the perspective of the overall technology chain, there are risks of prominent local indicators and instability of the overall chain, which make it difficult to lay a solid foundation for sustainable development and improvement. At present, the healthy system guiding enterprises to form a sound development at the technical and product levels needs to be further improved, focusing on the effectiveness of accumulation, and promoting the improvement and breakthrough of iterative qualitative change in the process of constant accumulation and quantitative change.

Third, guide enterprises to upgrade to intelligent manufacturing. The gap between the manufacturing capacity of China's power battery enterprises and foreign advanced enterprises is still an important factor constraining the development of the industry. The intelligent manufacturing proposed in Made in China 2025 is an important guide to the upgrading of power battery manufacturing and an important measure to enhance industrial competitiveness. However, at present, the industry's understanding of intelligent manufacturing of power batteries still has unclear concepts, weak measures, and inadequate implementation. However, the introduction process of relevant national standards is complex and takes a long time. In this context, relevant industry institutions can take corporate standards as a breakthrough, organize advantageous enterprises to actively carry out research on intelligent manufacturing specifications, and promote the upgrading and progress of enterprises' manufacturing capabilities through the strength of the industry.

Fourth, actively carry out research on the performance of power battery at low temperature. Poor low temperature performance of power battery is an important reason for the comprehensive performance of new energy vehicles to be inferior to that of traditional fuel vehicles. At present, in the winter of northern China, the driving range of electric vehicles is usually reduced by 30%. If the warm air is turned on even higher, it will bring great inconvenience to users, and it is also not conducive to the large-scale promotion and application of new energy vehicles. Therefore, in terms of policy, we can guide the technical breakthrough in this field, provide corresponding support for superior products, comprehensively promote the development and improvement of power battery performance, and solve the technical problem of high low-temperature capacity degradation.

Fifth, guide the transformation of consumer consumption concept. At the early stage of the development of new energy vehicles, especially pure electric passenger vehicles, because there was no better benchmarking model and blank use concept, we simply took the 500km driving range of traditional fuel vehicles as a reference and benchmarking to develop pure electric passenger vehicles, but failed to deeply tap the advantages of pure electric passenger vehicles. With the rapid development of new energy vehicles, we have a further understanding of the development of pure electric passenger vehicles. According to the data from the national monitoring and management platform of new energy vehicles, the total daily driving mileage of pure electric passenger vehicles is concentrated within 40 kilometers. Under this usage habit, it is very important to guide consumers to establish a new energy vehicle use concept of "solving daily travel in cities and contributing to urban traffic emission pollution", because urban travel can solve more than 90% of daily travel problems, There is no need to pursue high driving range too much, and the vehicle does not need to carry too much electricity. It is suggested that the next step of financial subsidy for new energy vehicles is to guide the optimization of comprehensive performance, product development, cost reduction and industry solidification in combination with the energy density of power battery under the premise of a certain driving range (the author thinks 250~300km is appropriate). On this basis, subsidies tend to be for products with low unit energy consumption, good safety and long battery life.

The core of the development of new energy vehicles depends on the comprehensive development of power batteries. The power battery industry needs high-quality development, and needs to constantly introduce better products. In the future, it is hoped that a better and stronger power battery industry can help promote the development and progress of the new energy vehicle industry.

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