Industrialization and Technological Progress of Solid-State Batteries in the New Energy Power Sector

Qingxiao Du

doi:10.54097/26bzt935

Authors

Qingxiao Du

DOI:

https://doi.org/10.54097/26bzt935

Keywords:

Solid-state battery, Solid electrolyte, Energy storage, Electric vehicle, Lithium metal anode, CATL, BYD, Tesla, Sulfide, Oxide, Polymer, Industrialization

Abstract

In recent years, the rapid growth of the electric vehicle and energy storage markets has driven significant advancements in power battery technology. While traditional liquid lithium-ion batteries dominate the market, their inherent safety risks and limited energy density have prompted exploration of next-generation technologies. Solid-state batteries (SSBs), which utilize solid electrolytes in place of flammable liquid ones, offer promising advantages in safety, energy density, and high-temperature performance. This paper systematically reviews the working principles and material systems of SSBs, focusing on the three main electrolyte types: polymers, oxides, and sulfides. It also examines key application scenarios in electric vehicles, consumer electronics, and grid storage, highlighting the benefits of SSBs in each sector. Based on data from 2020–2025, the paper analyzes market trends in China and globally, showing exponential growth in both output and investment. Case studies of major industry players including CATL, BYD, and Tesla are discussed, comparing their technological routes and commercialization timelines. Finally, the paper addresses the major technical and industrial challenges facing SSB adoption and proposes development strategies including interface engineering, hybrid electrolyte systems, and policy support. The study concludes that SSBs are likely to play a critical role in the next phase of the energy transition, with large-scale commercialization expected in the early 2030s.

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