“Summary: The power battery big data analysis system based on the Internet of Things and blockchain technology has broad application prospects and can change the current dilemma faced by the new energy vehicle industry. Although its real implementation needs to coordinate the interests of many parties, it is definitely It will be a direction for the future power battery industry. In addition to new energy electric vehicles, another emerging industry – shared electric bicycles may be an industry that is easier to apply power battery big data systems.
The application of Internet of Things, blockchain and big data technology in the power battery industry
Not long ago, a dynamic of Li Xiang detonated the circle of friends of the Autobots. What did Tesla do right to beat a number of car companies? In my opinion, new energy vehicles need to do two things right at this stage.
1. Get customers to forget about range anxiety (or forget about batteries).
2 Endow new energy vehicles with new attributes (such as autonomous driving, smart cockpit).
Faced with the burden of cost accounting for 40%-60% and weight accounting for 20%-40%, the industry has been suffering from batteries for a long time. How to solve the anxiety that batteries bring to enterprises and customers has become a persistent problem. At the recent Blue Book Forum held in Wuhan, many industry leaders pointed out that the key to the rapid development of the new energy vehicle industry is the purchase and use of fuel vehicles. In my opinion, the current power battery hinders the development of the new energy vehicle industry mainly due to the following factors.
01. The current problems of the power battery system
1.1 Security Issues
Since 2018, with the increase in the number of electric vehicles, the spontaneous combustion and explosion problems caused by the battery system of new energy vehicles have occurred frequently. Since 2020 (July 30), there have been 17 cases reported by the media. As a result, the national regulatory department has issued corresponding national standards, requiring car companies to trigger an alarm signal to remind passengers to avoid danger after the battery thermal runaway, and to ensure that there is no visible fire outside the system within 5 minutes. But this standard is only a rescue measure after a battery thermal runaway occurs. In terms of electrochemical principles, as the battery is continuously recycled, the health of the battery decreases, and the risk of thermal runaway continues to increase. What should really be pursued is to analyze the health of the battery at any time by continuously monitoring its usage during the use of the battery system, and predict the risks in advance.
1.2 The one-time purchase price of new energy vehicles is high
Due to the high cost of the power battery system (generally 1~1.2 yuan/Wh in the industry, the cost of the battery system is about 50,000 to 100,000), the cost of new energy vehicles is much higher than that of fuel vehicles with the same configuration. With the pursuit of high mileage by customers, the cost of car purchases has risen, resulting in a decrease in sales.
1.3 The residual value of second-hand new energy vehicles is low
The power battery accounts for 40%-60% of the cost of the whole vehicle. It can be said that the second-hand residual value of the battery almost determines the second-hand residual value of the new energy vehicle. Due to the fact that the health status of a certain node in the power battery life cycle cannot be estimated, customers and second-hand car dealers are reluctant to accept second-hand new energy vehicles, resulting in low second-hand valuations of new energy vehicles, and even two years for some models. Nearly 50% off the car price.
1.4 Echelon utilization is difficult to implement
Due to the lack of health status assessment of the power battery, it is difficult to evaluate the safety and remaining life of the power battery system retired from the new energy vehicle, and it is impossible to conduct transactions, which hinders the implementation of cascade utilization. As a result, the residual value of the power battery system cannot be effectively utilized.
The essence of the problems encountered in the power battery industry
In my opinion, the current problems encountered by power batteries can be summarized into the following two points:
The power battery cannot monitor the status at any time (temperature, Voltage, current, time, etc.)
The collected data cannot be accurately collected, transmitted and analyzed
The current efforts and problems of the industry to solve the above problems
In order to solve the above problems, national regulatory authorities, various car companies and battery manufacturers have also made various attempts. But there are various practical problems.
Data collection: At present, with the application of intelligent network connection system in passenger cars, T-BOX (4G) transmission modules are generally equipped in the car to interact with the network. Some car companies will use the T-BOX installed on the car to transmit power battery data to the background. However, in this way, data cannot be sent when the vehicle is still powered off, and the state of the power battery cannot be updated at any time.
2 Power battery data monitoring platform: In 2016, a national testing and management platform for new energy vehicles, led by the Ministry of Industry and Information Technology and undertaken by Beijing Institute of Technology, was established. This platform uniformly collects the power battery data transmitted by various car companies through T-BOX. However, due to the limitation of T-BOX, the data is discontinuous and the stability is poor, and various car companies are worried about the problem of data security. The data provided to the platform is very limited, which limits its application value.
Using the Internet of Things technology, the power battery operation platform based on blockchain and big data analysis technology may be a solution to the Internet of Things (IOT) technology, which can realize power battery status monitoring under power-off conditions, and has low cost, stable transmission, and IOT. The electrical energy of the module can be directly derived from the power battery. With the T-BOX module, the status monitoring and data uploading of the battery life cycle can be realized. Using blockchain technology, a shared data monitoring platform that can be trusted by regulatory authorities, car companies and other relevant parties can be established. Blockchain technology itself has the characteristics of immutability, sharing and encryption. The data is trustworthy, and the use of private chains can also realize the storage of sensitive data. Based on the above data, regulators and enterprises can build a power battery operation platform, make full use of these data, and unify the needs of power grids, users, car companies, and other stakeholders, which can create huge value and potential markets.
Application prospect of power battery operation platform
It provides users with battery safety warning, and integrates the in-vehicle intelligent interactive system to intelligently plan user charging and driving plans. You can also use the CRM system to analyze customer behavior, guide customers in battery usage through APP, and give early warning before danger occurs. The APP can also integrate various scenarios such as electricity bill payment and charging facility repair.
This system can provide insurance companies with more accurate estimates of new energy vehicle insurance costs. At present, the spontaneous combustion insurance of new energy vehicles is the most troublesome business for various insurance companies. After the power battery big data system is realized, the health status of the power battery system can be judged at any time, and the insurance premium of the vehicle can be more accurately calculated for the insurance company according to the calculated failure probability. In turn, due to the reduction of insurance premiums and protection, customers will in turn promote vehicle sales, and car companies will also benefit from it.
The vehicle-electricity separation mode can be better realized. Users only buy vehicles and rent batteries to reduce the cost of vehicle purchases. Car companies can get more sales because of the reduction in car purchase costs.
Better realize the V2G mode and improve the overall efficiency of the power grid. Through the ERP system, the power in the vehicle battery is combined with the peaks and valleys of the power grid, the remaining power of the vehicle is taken out through the charging system during the peak period of electricity consumption, and the vehicle is charged during the valley period to achieve efficient use of electricity.
Potential problems of power battery big data system
Although the application of power battery big data system has broad prospects, the problems of data acquisition, transmission and data security can be solved by current technology, but there are still some potential obstacles
There is a game between car companies, power battery manufacturers, and regulators, and it is difficult to cooperate. Due to the huge value of power battery-related data, all three parties want to gain dominance and it is difficult to reach cooperation. But in fact, this is also an opportunity. The common value of the tripartite cooperation has been clear, and it is to see who can step in.
The rapid development of power battery technology has caused its computing model to change all the time, making the system unable to play its role
Summary: The power battery big data analysis system based on the Internet of Things and blockchain technology has broad application prospects and can change the current dilemma faced by the new energy vehicle industry. Although its real implementation needs to coordinate the interests of many parties, it is definitely It will be a direction for the future power battery industry. In addition to new energy electric vehicles, another emerging industry – shared electric bicycles may be an industry that is easier to apply power battery big data systems. Because the charging mode of shared electric bicycles has been proved to be impossible, most companies are now studying the shared electric bicycles in the battery exchange mode. Its battery capacity is small and the battery replacement frequency is high. It needs to accurately control the power battery status to provide sufficient battery life, and it needs to be mass-scaled, with few stakeholders, and can be managed in a unified manner. This is the perfect testing ground for the power battery big data system.