---
title: "Solid-state EV battery patent reveals CATL’s ambitious plans"
type: "News"
locale: "zh-HK"
url: "https://longbridge.com/zh-HK/news/278743608.md"
description: "CATL has filed an international patent for its solid-state EV battery technology, which aims to address significant challenges in market implementation. The patent outlines advancements in battery chemistry, including sodium-ion and solid-state systems, enhancing driving range, charging speeds, and safety. CATL, which held nearly 40% of global EV battery sales last year, continues to innovate to maintain its market leadership. The patent was published by WIPO on March 5, 2026."
datetime: "2026-03-11T14:53:19.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/278743608.md)
  - [en](https://longbridge.com/en/news/278743608.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/278743608.md)
---

> 支持的語言: [简体中文](https://longbridge.com/zh-CN/news/278743608.md) | [English](https://longbridge.com/en/news/278743608.md)


# Solid-state EV battery patent reveals CATL’s ambitious plans

CATL filed an international patent, detailing how its solid-state battery cell and electrolyte material can help overcome one of the biggest challenges in bringing the new tech to market.

## CATL patent explains new solid-state EV battery system

CATL widened its lead in the global EV battery market last year, accounting for nearly 40% sales. To stay ahead, the company is advancing new battery chemistries, including sodium-ion and solid-state, promising to unlock considerable improvements in driving range, charging speeds, and safety.

A new patent published by the World Intellectual Property Organization (WIPO) offers a closer look at how CATL’s solid-state battery system works.

The patent, titled “Positive Electrode Sheet, Solid-State Battery Cell, Battery Device, Electric Device, and Positive Electrode Active Material and Preparation Method Therefor,” was published on March 5, 2026.

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