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The development history of power battery of pure Mini Electric Vehicle
- Aug 29, 2018 -

When it comes to electric or pure electric cars, they have been around for over a hundred years.

A telex device completed by nyos Jedlik in the laboratory in 1828.


The first actual electric car was invented by American Anderson between 1832 and 1839.

The battery used in this electric car is simpler and cannot be recharged.


In 1899, the German bosher invented a hub motor to replace the chain drive that was common in cars at the time.

The lohner-porsche was then developed, powered by lead-acid batteries and driven directly by hub motors in the front wheels, the first car named after Porsche.


The lohner-porsche rear wheel also carried two hub motors, giving birth to the world's first four-wheel-drive electric vehicle.



The most important reason why electric vehicles haven't been developed on a large scale in nearly 200 years is the restriction of battery technology.


It can be seen how significant the impact of battery on the development of pure electric vehicles is. Over the past 100 years, the battery technology has not made any revolutionary progress in the world, until the 21st century after some breakthroughs in the field of materials, the battery technology has gradually gained new development.


Today, we will talk about the development history of automobile battery technology in the world.



Japan electric battery development advantages obvious


The research of battery for pure electric vehicle mainly focuses on lithium battery followed by lead-acid battery, nickel-metal hydride battery and sodium battery.

In terms of the total number of patent applications worldwide, Japan has the largest number of patent applications related to battery for pure electric vehicles and its management system.

In terms of the number of patent applications in Japan, more than 90% of patent applications also come from Japanese applicants.

Japan is the most powerful in the field of pure electric vehicle battery and its management system, and controls most of the patented technologies, both from the perspective of the world patent application volume and the share of Japanese applicants in Japanese patent applications.



American pure electric car USES battery next


As the world's largest automobile production and consumption country, the research on pure electric vehicle batteries in the United States mainly focuses on lithium batteries, which account for more than 70% of the number of power battery patents, followed by lead-acid batteries, nickel-metal hydride batteries, air batteries and sodium batteries.

In terms of the total number of patent applications worldwide, as of June 2010, the United States ranked second behind Japan in the number of patent applications related to pure electric vehicle batteries and their management systems.

In terms of the number of patent applications in the United States, among the patent applications related to pure electric vehicle battery and its management system, the number of patent applications from Japanese applicants is the highest, nearly 60% of the total, while the number of patent applications from American applicants is inferior to Japan.



Batteries for German all-electric cars seem to be dispensable


The research mainly focuses on lithium battery, followed by lead-acid battery, nickel-metal hydride battery, sodium battery and air battery.

In terms of the total number of patent applications worldwide, as of June 2010, Germany ranked sixth in the world in the number of patent applications related to pure electric vehicle battery and its management system, which was greatly different from the number of patents in Japan, accounting for only 11% of the number of patent applications in Japan.


German applicants hold about 43 per cent of all patents filed in Germany, higher than second-place Japan.

On the global scale, Germany's technical strength in the field of battery and management system for pure electric vehicles is far less than that of Japan. However, Germany has strong technical advantages in its domestic scope, and its patent ownership is higher than that of Japan.



China's ev battery technology is developing fast


China, Japan and South Korea continue to dominate the market, taking 37%, 28% and 33% of the battery market in 2012, with China accounting for the largest share, partly boosting the development of electric vehicles.


At present, electric vehicle battery technology develops rapidly in China, but there are two obvious disadvantages.

The first shortcoming of electric vehicle batteries is the lack of in-depth technologies, such as chemical problems, physical problems, temperature problems, structural problems, etc. In these aspects, we have not developed enough, and have not been able to establish mathematical models to figure out these problems.

Another disadvantage is the lack of evaluation system. Although some electric vehicles in China are running well, they lack good evaluation system.

There is no good assessment of how safe the battery is, or whether it will work at high or low temperatures.


A report released on June 7, 2013 in Shanghai by Roland berger, a well-known European consulting company, said that global electric vehicle manufacturing prospects are not very optimistic, but China is the exception.


China's automotive power battery has entered the industrialization stage from research and development, and has appeared the momentum of accelerated development.

The main performance of electric vehicle power battery research and development products has been in the international advanced level, but some weak links need to be solved.

At present, the domestic power battery has shown obvious cost advantage.



conclusion


At present, the global power battery industry is faced with technological and cost constraints. Only when the performance of power battery is improved, the cost is greatly reduced, and the large-scale application can drive the development of other mature links.


Therefore, the power battery is the most valuable part of the electric vehicle industry chain, and it is most likely to gain excess profits. Other parts, such as the electric motor and electric control system, have relatively mature technology and market foundation, and there are many competitors, which may only get average profits.