Heat storage technology | Photothermal power generation Philippines Sugar level combined with energy-saving calcined salt battery

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Technical CreationSugar daddyNew Energy promotes the development of solar energy-heating power industry in a step-by-step manner. Teacher Zhang Jiancheng, a senior student of photothermal power generation, combined the optical heat generation system, the Internet’s request for energy storage equipment, and the experience and teaching of the 2018 Energy Acquisition “Tianbo Plan” of the american Power Department proposed to use a slurry melted salt battery as the main trick of electrochemical energy storage, and the circulation of the battery in the ducted optical heat generation system can realize the heat storage and electricity storage interchange. He pointed out that Sugar baby needs to carry out overhead innovation in traditional slurry melted salt battery structures to meet the long-term network time and large capacity energy, and at the same time apply chemical heat generated by slurry melted salt battery charging and discharging for ladder heat applications. The full text is as follows for reference.

(Source: WeChat public number “Solar Energy Optoelectronics and Thermal Industry Technology Innovation Strategic Alliance” ID: nafste Author: Zhang Jiancheng)

1. Technical problems facing the energy accumulation of melting salt

1. Real problems facing the energy accumulation technology

Photothermal power generation uses melting salt energy accumulation. In order to develop the advantages of the heat absorption of the light-heat electric power generation, it further reduces the cost. If it is necessary to innovate or choose re-energized energy technology.

In the commercial demonstration applications of various types of energy technology, although the advantages of energy power in the future of smart networks have been demonstrated, they have also exposed unavoidable problems, especially electrochemical energy technology, which is still quite different from the development goals of “low cost, long life, high safety, safe, easy to accept and take over”, and there is a need for overwhelming technological innovation and breakthrough.

2. Melted salt batteries have excellent recharge energy

(1) The existing technology-proven high-temperature melting Sugar babySugar babySugar batteries include: sulfur-sugar batteries, salt-sugar batteries, and liquid metal batteries (liquid metal batteries are newly derived melting salt batteries).

(2) Characteristics of high temperature melting salt batteries: high industrial environment temperature, 200 to 600 degrees Celsius; the energy density is centered, reaching more than 100Wh/Kg; the circulation life is longer; the energy cost reduction space is large, which is easy to graft into the optical heat generation system circulation ring, and can meet the power energy accumulation and economic technology requests at the same time. The function of the calciner battery is excellent.

2. Comparison options for high temperature melted salt batteries

1. Structure and application of sulfide-solid battery columns produced by japan (Japan) NGK

<p style="text-align: Figure 1: japan (Japan) NGK company's slurry battery technology

japan (Japan) NGK company’s slurry battery stack features:

NAS battery system continues to discharge for 6 to 7 hours, and can be used in combination with renewable power, with the largest system at 50MW/300MWh. (Not heat-absorbing performance) Plans to reduce capital from US$300/kW to US$200/kW by 2020.

On June 5, 2015, the first 200KW/1440KWh sulfur-retaining (NAS) battery energy conservation demonstration project in China, jointly constructed by Nanruibao and NGK, was put into operation at the Nanruibao Military Intelligent Electrical Equipment Park in Jiangning, Nanjing. Sugar baby has been denied the domestic market due to safety risks and environmental protection problems.

2. Important features of calcined slurry battery

√ High circuit voltage (2.58V at 300℃)

√Higher energy (theoretically 790Wh/kg, actual reach 150Wh/kg)

√Energy conversion effect is good to rest, without makeup, just a “filling” gift, high whiteness (no self-discharge, 100% guillotine effect)

√Carry out rapid charging (30 minutes charge up to 50% Discharge capacity)

√The task temperature range is wide, and the trough type CSP system can be melted (250℃~350℃)

√The capacity has no correlation with the discharge rate (the battery internal resistance base is OEM internal resistance)

√Overage overcharge and over discharge (the second electrolytic quality NaAlCl4 can participate in reaction)

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√No liquid-free shank during production (battery is installed under discharge state)

√Simple maintenance (full seal structure, low resistance method for battery damage), safe and reliable (no low boiling point, high steam pressure quality, is unique through the American Advanced Battery Association (USABC) 22 ） ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ ９ �It is very convenient to graft the light heat generation and circulation system, and is the first choice for heat storage.

3. AmericanGE’s “Big Pine” Pine Pot Battery Production and Application

Figure 2: GE’s slurry battery structure

americanGE bought the British Beta R&D slurry battery factory in 2007 and set up the “Durathon” or “big slurry” slurry battery brand in american. After 11 years of research and development, the investment funds exceeded US$400 million. Due to poor sales, it announced its suspension of production in January 2015.

Afterward, Chaowei and GE cooperated with deep cultivation of chlorine-based batteries. In January 2017, Chaowei Company issued a notice that Chaowei and GE jointly established Zhejiang Green Energy (Anli) Power Co., Ltd. to enter the field of military calcined battery (simplified as calcined battery). Chaowei and GE will invest 30 million RMB 10 million RMB respectively, with US$5 million, corresponding to 85.7% and 14.3% of shares. According to the technical transfer and special agreement, the United Capital Company will pay GE US$14 million (for the privilege), exclusive prices (for the privilege independence), and actual application fees; GE will pay technical documents to the United Capital Company and provide technical support to help the United Capital Company to commercialize its products.

Picture3: German Fleenkhov’s solid electrolytic quality β-Al2O3 ceramic tube

After 2016, calcified chloride batteries returned to the market. German Fleenkhov focused on calcified chloride batteries and developed its own technical advantages to improve the solid electrolytic quality structure and sealing methods.

Figure 4: Fleenhoff, Germany’s calc

Europe Energy Exhibition in March 2019. At the conference, the Fleenhoff Institute of Ceramic Technology and Systems (IKTS) exhibited its latest “cerenergy” ceramic calendering high-temperature battery. When “Cerenergy” is 5 kW, it consists of 20 single batteries and the cost will be less than 100 EUR per kW.

<p style="text-align: Figure 5: my country's research results

In 2018, information was released that the Solid Physics Research Institute of Hefei Physics Research Institute of the Chinese Academy of Sciences successfully broke the β-Al2O3 ceramic technology, grasped dynamic burning technology and batch static burning technology, and reached the international advanced level. Ceramic glass sealing, metal and ceramic connection were successfully carried out.

4. Comparison of functions of calcined src=”http://img01.mybjx.net/news/UploadFile/201908/6370258361821041081524635.jpg” style=”” title=”20190828_100142_004.jpg”/>