BYD , CATL & Sinopoly , Winston LFE Cells

Engineer34 said:

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I was also curious about the economical view of as well. These prismatic batteries promise like -cycles.
But how many cycles can salvaged from batteries can offer ?

I checked some new has 500 cycle life, can not imagine salvaged cells cycle life. If so why everybody use ?
It should be 4 times cheaper then prismatic new cells. Right ? Can anybody give some figures in order me to understand ?

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(lithium-ion) can definitely last longer than 500days in a solar DIY system... but I agree its a question of how long that is interesting to me.
Here's a thread by @Generic -

There's also the famous Battery University page -

One thing about (s) is that they are 'many small units' (as apposed to a prismatics bank that would likely be fewer/larger units) and it might be that as my battery bank ages it will die in groups of cells here and there rather than 1,000(s) of cells all at once - so I may have a chance to extend the life by ongoing cell maintenance... which is why I designed my packs to be serviceable.

(lithium-ion) can definitely last longer than 500days in a solar DIY system... but I agree its a question of how long that is interesting to me.Here's a thread by @Generic - https://secondlifestorage.com/showthread.php?tid= - whose's cycling some s @ 100% DOD to see what happens - he's reached the 1,200cycle mark recently and a couple of the cells still have 75% of the starting capacity.There's also the famous Battery University page - https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries - showing that 1,000(s) of cycles are possible at low DOD %(s). My oldest 14s120p battery is now 2yrs old with 603 cycles at average DOD of 44%and going strong. ButI need 7,000 cycles to break even, so it will be a while yet before I have serious data....One thing about (s) is that they are 'many small units' (as apposed to a prismatics bank that would likely be fewer/larger units) and it might be that as my battery bank ages it will die in groups of cells here and there rather than 1,000(s) of cells all at once - so I may have a chance to extend the life by ongoing cell maintenance... which is why I designed my packs to be serviceable.

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This is a very special cell that was developed for extreme conditions. Its unique features include a 5,000 cycle lifespan and it can discharge at a constant 3C (5C pulse) at an impressive temperature range between -30 and 55 degrees Celsius (-22 to 131 degrees Fahrenheit). It can also be mounted on its side or work just as well upside down which makes it perfect for mobile (Marine/RV), or extreme battery builds.

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Sinopoly Battery Limited (Sinopoly) is an integrated high-tech group which specializes in production, sales and R&D of high capacity lithium-ion battery and its related products. Sinopoly is headquartered in Hong Kong and is a member of FDG Electric Vehicles Limited, which is listed on the Main Board of the Hong Kong Stock Exchange (stock code: SEHK ). Sinopoly has more than 10 subsidiaries, including Sinopoly (Tianjin) New Energy Investment Co., Sinopoly Battery Research Institute, etc. The subsidiaries are located in Beijing, Shanghai, Shenzhen, Tianjin, Jilin, Hangzhou and other main cities in the PRC.

Core business of Sinopoly includes research and production of 40AH-400AH large capacity lithium-ion battery cells, design and integration of electric vehicle and energy storage systems, technical consultation and services. Its battery products are widely used in transportation, power, industrial, communication and other fields. The group has world-class lithium battery production bases, institute for technology innovation and center of engineering and technology. Sinopoly has obtained more than 70 patents, various quality management system certifications (such as ISO, ISO, TS) and product quality certifications (such as PONY, UN38.3, ROHS, CE, UL, QC / T743-). Its products has been distributed and operated in over 30 provinces and cities in the PRC, and has entered the United Kingdom, Germany, Italy, United States, Australia, New Zealand, Malaysia and other international markets. Sinopolys products are highly recognized by domestic and foreign users.

Sinopoly, the Professional Battery Manufacturer, follows national industrial policy and sticks to the trend of green and energy-saving development. With sound support of adequate funding resources, leadership from outstanding operational and managerial talents, world class industry experts and significant market influence. Sinopoly aims at being the best brand in lithium battery industry and promoting the sustainable development of new energy and advanced battery industries.

 

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