These battery technologies could power future electric mobility

Solid-state battery, sodium-ion batteries could change the face of EV battery industry.
By : HT Auto Desk
| Updated on: 10 Apr 2022, 13:45 PM
Battery technology for electric vehicles has been changing constantly.
Battery technology for electric vehicles has been changing constantly.
Battery technology for electric vehicles has been changing constantly.
Battery technology for electric vehicles has been changing constantly.

The electric powertrain is the latest technology disrupting the auto industry. While thee are several battery technologies, the lithium-ion one is the dominant battery technology. However, lithium-ion has some shortfalls as well. Battery technology is being developed constantly in order to find alternative cell chemistry, which will make sure the batteries are cheaper and more energy-efficient compared to the current ones.

(Also Read: Electric vehicle retail sales in India witness three-fold jump in FY22: FADA)

Here are three upcoming battery cell chemistry that could power future electric vehicles.

Lithium-sulphur battery

Lithium-sulphur batteries could be the alternative to Lithium-ion batteries. In Li-ion batteries, the lithium ions are stored in active materials acting as stable host structures during charge and discharge. Li-S batteries come minus any host structures. While discharging, the lithium anode is consumed and sulfur is transformed into a variety of chemical compounds. The reverse process takes place during charging. Li-S battery comes with a higher energy density.

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Solid-state battery

Solid-state batteries could bring a paradigm shift in battery technology. In current li-ion batteries, ions move from one electrode to another across the liquid electrolyte. In solid-state batteries, the liquid electrolyte is replaced by a solid compound allowing lithium ions to migrate within it. This technology is safer at cell and battery levels. Despite heating, solid electrolytes are non-flammable, unlike their liquid counterparts. These batteries are denser and lighter with a better shelf-life.

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Sodium-ion battery

Sodium-ion battery uses sodium ions (Na+) as charge carriers instead of lithium ions. The working principle and cell construction of sodium-ion batteries are identical to the lithium-ion battery types. The sodium-ion batteries are safer than lithium-ion batteries in terms of thermal efficiency. Compared to lithium-ion batteries, sodium-ion batteries are slightly costly and subtly lower energy density, but they come with similar power delivery characteristics.

First Published Date: 10 Apr 2022, 13:45 PM IST
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