The largest battery in the world? The Chinese are building an energy storage unit with a capacity of 800 kWh
The largest energy storage facility in the world is being built in the Dalian province of China. It uses flow-through vanadium cells that were hailed as a miracle in the battery world a few years ago.
Table of contents
- Vanadium flow cells (VFB) - what it is and what it is used for
- Energy storage = the future of every country
Vanadium-based electrolytes are used in flow-through vanadium cells. The potential difference between the different forms of vanadium ions makes it possible to generate energy. Flowing vanadium cells have a much lower energy storage density than lithium-ion cells, so they are not suitable for use in automobiles, but they are well suited for power plants.
The Chinese decided to launch such an energy storage device. Its capacity will be 800 megawatt-hours (MWh) or 800 kilowatt-hours (kWh), and its maximum capacity will be 200 megawatts (MW). It is believed to be the largest energy storage facility in the world.
> Hyundai Electric & Energy Systems wants to BE Tesla's RECORD. Will start a battery with a capacity of 150 kWh.
Energy storage = the future of every country
The main task of the warehouse will be to reduce the load on the power grid at peaks and store energy during its overproduction (at night). The advantage of vanadium flow cells is that they are virtually non-degradable because only one component (vanadium) is present. Electrek even states that Vanadium batteries must withstand 15 charge cycles, and the first twenty years of use must not result in a loss of capacity..
For comparison, the expected life of a lithium-ion battery is 500-1 charge / discharge cycles. The most modern designs allow for up to 000 charge / discharge cycles.
> How do Tesla batteries wear out? How much power do they lose over the years?
Pictured: flow-through vanadium cells in one of the energy storage facilities in China (c) Rongke
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