The world's largest production base of zinc bromine liquid energy storage battery key materials settled in Baoding

On the morning of the 27th, the first batch of enterprises in Baoding Zhongguancun Innovation Center held a press conference. At the meeting, the world's largest zinc bromide liquid energy storage battery key material production base settled in Baoding. Baoding Mayor Ma Yufeng and other participants witnessed the signing ceremony.

The project is invested by Beijing Baineng Huitong Technology Co., Ltd. It is expected that after the completion of production, the annual energy production capacity of key materials such as diaphragms and plates will reach 200 MWh, and the annual capacity of energy storage systems will reach 50 MWh. The largest production base for key materials for zinc-bromine flow energy storage systems.

"Whether it is for the construction of the energy Internet or for the current process of energy reform, energy storage technology is a link that cannot be avoided," Lu Ke, general manager of Baineng Huitong, said in an interview with reporters after the meeting. Energy storage is also an indispensable supporting technology for the development of renewable resources, grid-connected, distributed power generation, micro-grid, and new energy vehicles."

It is predicted that by 2020, the scale of energy storage in the world power market will exceed 31.8GW, and the market size will reach 23.1 billion US dollars. This industry is accelerating due to the rise of distributed energy and microgrid in recent years, and is considered to be the new energy field most likely to be commercialized in the future.

The world's largest production base of zinc bromine liquid energy storage battery key materials settled in Baoding

Since last year, news of abandoned wind and light has been frequently heard in various places. A large number of photovoltaic and wind power projects cannot generate electricity. According to statistics, in the first half of this year, the overall wind and light rejection rates of wind power and photovoltaics in China were 38.9% and 19.7 respectively. %.

At the same time, the new energy vehicles have experienced explosive growth over the past few years. The phenomenon of “environmental paradox” and “cheat compensation” that rely on fossil energy power charging is still difficult to solve. In the current policy and technology environment, whether energy storage can be a key to solving problems has become a problem that many industry experts and companies are thinking about.

"Long-distance runner" zinc-bromine battery

The energy storage industry, whether it is technology or total installed capacity, has developed rapidly in the past two years.

In the fastest example of Europe, the compound growth rate in 2013-2015 is as high as 115%. The second only to Europe in the world is China. The compound growth rate in the past three years is close to 110%.

These large number of new energy storage projects are mainly concentrated in the field of distributed generation and microgrid and renewable energy integration. In particular, the former, the largest installed base or the number of projects occupy the largest proportion of the Chinese market, respectively, 46% and 71%.

Especially in some industrial parks on the southeast coast, through distributed renewable energy generation, combined with local electricity price policies, distributed photovoltaic subsidy policies and various preferential policies, both self-sufficiency and electricity sales can be used to generate revenue.

From the perspective of application technology, lithium-ion batteries , lead storage batteries and flow batteries are the main ones. These three categories occupy 94% of the total installed capacity of energy storage in China, which is absolutely important. Unlike lithium-ion batteries and lead-acid batteries, zinc-bromine liquid-flow energy storage batteries are flexible in configuration and are considered to be a new energy storage technology for new energy grid-connected, distributed generation and micro-grid.

"Zinc-bromine battery is a kind of flow battery. It belongs to energy-type energy storage and can charge and discharge for a large capacity and for a long time," Luke explained to reporters. "The application market is different from lithium-ion batteries."

He further told reporters that lithium-ion batteries are power-type batteries with high energy density and are suitable for electric vehicles . Zinc-bromine batteries are energy-type energy storage technologies. Although energy density is not high, they have large storage capacity and low cost. Grid level scenario applications. "This kind of battery can especially improve the current grid-connected photovoltaic and wind power generation difficulties, output instability problems, and can achieve the role of peak clipping."

After ten years of research and development work, Baineng Huitong's zinc-bromine battery has reached industrialized mass production, and its key material cost has dropped to 1/3 of similar foreign products. According to public information, the company achieved a turnaround in 2015, and it is estimated that the net profit for 2016 will reach 20 million.

Crack the new energy bottleneck?

Regardless of the angle, the vigorous new energy construction in the past few years has encountered bottlenecks this year.

Taking electric vehicles as an example, the current charging source for electric vehicles is basically ordinary commercial power, and the proportion of Chinese fossil energy in the entire power generation structure exceeds 80%. In combination with the large amount of abandoned wind and light, the actual proportion may be higher. Therefore, considering the line loss in power transmission and the loss during charging and discharging of the battery, from the perspective of energy consumption in the whole industry chain, the so-called “clean energy” vehicles may not be environmentally friendly.

In order to achieve the goal of charging electric vehicles with clean energy, Baineng Huitong is currently promoting the “light storage and charging” integrated new energy vehicle charging station project in major cities and highway network service areas across the country. The project uses photovoltaic power generation and zinc-bromine batteries to form a new energy microgrid, providing electric vehicles with a 24-hour stable clean power supply. In this area, zinc-bromine batteries have strong cost and application advantages.

In addition, the output of photovoltaic power generation is unstable. It is not necessary to say that it is raining in the cloudy sky. Even if a cloud drifts over sunny days or autumn leaves, it may cause certain fluctuations in the photovoltaic power generation process, which is a big impact on the conventional power grid. The use of energy storage to store these fluctuating new energy powers, combined with virtual synchronization technology, can achieve a smooth grid connection of new energy power.

“This project has been established at the National Energy Administration and is also a major technology support project in Qinghai Province,” Luke said. “We hope to solve the current paradox of new energy vehicles, starting with photovoltaic power generation and using clean electricity to new Energy car power supply, truly achieve 'zero emissions'."

At the end of 2015, Baineng Huitong signed a strategic cooperation agreement with Zhongguan Group, a subsidiary of China Communications Construction. "We hope to carry out the industrialization of such projects in the service area of ​​the expressway. In addition to China Communications Construction, we are also actively cooperating with the provincial and municipal trading companies," he said.

The same principle can also be applied to solve the current dilemma of abandoned wind and light. According to the situation of power limitation, zinc-bromine batteries will be built in different photovoltaic power stations or wind farms, and new energy sources that cannot be connected to the Internet will be stored and transported out when the power grid is capable, thereby reducing power generation waste caused by limited transmission. "The energy storage has a dual function, on the one hand it can be an electrical load, on the other hand it is a power supply." Luke told reporters.

Baineng Huitong called its solution for the abandoned wind and light market as “storage power bank”, stored the discarded electrical energy, and earned the difference by cutting the peak. “I think the best energy is the energy saved through energy storage technology, the energy that would have been wasted because it has no cost,” he said.

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