Can reach energy storage system price of 1 watt-hour less than 1.5 yuan by 2020

Huang Shilin, the vice chairman of Ningde Times, once again accepted the high-tech lithium battery connection, and started a "sharp" question and answer with Zhang Xiaofei, chairman of high-tech Consulting. And see below:

Where is the time point when lithium electric storage can replace lead acid?

Huangshilin: There are a lot of ways to store energy, lead-acid batteries are one of them, but if we look at some particular field, the time has come for lithium batteries to replace lead-acid batteries. What I particularly want to add today is that in the early days, some battery manufacturers or hardware manufacturers expanded the energy storage market. With the rapid maturity of lithium power storage technology and the drastic reduction of costs, if some operators join this industry, Lithium storage can be used on a large scale to greatly advance or even erupt.

What are the specific areas of application you just mentioned?

Huangshilin: For example, there are many applications for lead-acid batteries at 4G/5G communication base stations. Many people think that if you replace lead-acid batteries with lithium batteries, the price will be much higher, but the operator's opinion will be different. When the lead-acid battery is matched with 200 Ah, the lithium battery may only need 120 Ah. If you work with the grid company to allow the lithium battery to play the role of peak filling, the capacity can be less than 80 %, which can save electricity.

From this point of view, lithium batteries operate for 10 years at base stations and lead acid batteries for 5 years. Compared with the entire product life cycle, it can be found that this can be replaced with low-cost, long-lived lithium batteries. This is just one example, and the industry will find more and more opportunities to come.

Compared to power batteries, what are the technical requirements for energy storage batteries?

Huangshilin: In fact, many colleagues think that energy storage batteries are better than power batteries. This is a huge misunderstanding. The technical requirements of the entire energy storage system are not lower than power batteries.

The energy storage system creates benefits through the power flow size and operating mode. The higher the efficiency and the longer the life of the energy storage system, the better the efficiency. In particular, after the application of smart grid in the future, the performance requirements for the entire system response speed and efficiency will be very high. Correspondingly, software and hardware manufacturers engaged in the energy storage industry must also have high and new technologies.

Lithium-ion battery companies that are currently entering the field of electric vehicles are much more than storage energy, and the competition is fierce. Some suggestions for battery companies that want to enter the field of electric vehicles and energy storage are given.

Huangshilin: It's okay to get into the power cell business, but it's just a matter of having the power cell that allows an electric car to compete with a conventional fuel truck. To achieve this condition requires excellent performance, safety and reliability, and outstanding cost advantages. If you can do so, welcome to enter.

The same is true for lithium battery companies entering the energy storage field. Can lithium batteries make energy storage systems more competitive than lead-acid batteries and pumping storage energy, and whether the cost and circulation capabilities are better.

Please be more specific, such as how many cycles should be reached, how low the cost, other indicators?

Huangshilin: We are the only company to undertake the "13th Five-Year Plan" project on national large-scale energy storage technology led by the national power grid and the National Energy Agency. The goal of the project is simple. The system can be used for more than 10 years. The price target of the entire system is 1 watt hour below 1.5 yuan. As long as this goal is achieved, the lithium electric energy storage system, which basically runs from the power generation side to the power side, will be promoted on a large scale by national forces. Our target date for completion is 2020, and it is hoped that this will be achieved ahead of schedule.

As you mentioned earlier about the need for operators to join in, talk about the importance of innovative business models for energy storage promotion.

Huangshilin: In fact, in the past many years, there has always been a misunderstanding, that is, many people do their own unprofessional things. Power core, energy storage system, and PCS are all trying to do energy storage operations. In fact, they are cross-border to unfamiliar and unprofessional fields. The so-called "technical industry has specialization" and should not do everything on its own, so we have been looking for people with operational needs, people with operational capabilities to cooperate with us.

However, the current state is that people who operate lithium batteries do not understand the advantages of lead acid, so they will choose "traditional products." If the people in our industry do their own things well, and the people downstream who are capable of operating are fully aware of the technical and cost advantages of our products, they will be able to open up a new market for lithium power storage applications. That's why I 've been advocating for professionals to do professional things, and our job is to do the right thing.

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