Hyundai is taking a significant step towards the future of electric vehicles (EVs) with its latest patent filing for an all-solid-state EV battery system. The South Korean automaker aims to enhance battery stability and energy density, ultimately leading to better-performing and longer-lasting EVs.

The recently published patent, titled "All-Solid-State Battery System Provided with Pressurizing Device," demonstrates Hyundai's dedication to advancing EV technology. By utilizing an all-solid-state battery system, the company aims to address the limitations of traditional lithium-ion batteries and unlock the full potential of EVs.

Unlike conventional batteries that rely on a liquid electrolyte, solid-state batteries use a solid electrolyte, which offers improved stability and performance even in the event of electrolyte damage. This technology promises lighter and safer batteries, along with faster charging and better overall performance.

While solid-state batteries show great promise, their adoption has been hindered by challenges associated with the sourcing and cost of solid materials. Hyundai's patented system aims to overcome these obstacles by applying constant pressure to each battery cell during charging and discharging.

The patent details a closed pressurized chamber, housing battery cells that are pressurized by fluid in an isostatic pressure. To maintain optimal conditions, sensors measure the pressure and temperature inside the chamber, while a voltage detector monitors the voltage of each cell. A controller manages the charging and discharging process when the temperature and pressure are within a predefined range. Furthermore, the system incorporates a temperature-adjusting device to ensure optimal battery temperatures.

Hyundai's pursuit of solid-state battery technology aligns with its ambition to become one of the top three EV producers by 2030. CEO Jae Hoon Chang has expressed Hyundai's intention to develop solid-state LFP and NCM batteries, aiming to lower costs and increase flexibility.

Hyundai joins various other automakers, including Toyota, GM, Volkswagen, Ford, Nissan, Honda, and Mercedes-Benz, in their efforts to revolutionize the EV industry with solid-state battery technology. While Toyota has been promising the launch of solid-state batteries for years, Hyundai is confident that its all-solid-state EV battery system will further propel the company's position in the market.

As EV adoption continues to rise globally, the development of advanced battery technologies like all-solid-state batteries holds immense potential. Hyundai's latest patent filing signifies its commitment to driving the EV revolution forward with safer, more efficient, and longer-lasting EVs.

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