Native name | 容百科技 |
---|---|
Industry | Lithium-ion batteries |
Founded | September 18, 2014 in Zunyi, China |
Founder |
|
Revenue | CNY 2.1 billion (2023) |
Number of employees | 4380 (2024) |
Ningbo Ronbay New Energy Technology Co Ltd, usually known as Ronbay Technology, is a Chinese company and one of the world's biggest manufacturers of cathode active material for lithium-ion batteries. [1]
Ronbay was founded on September 18, 2014 [2] [3] in Zunyi [4] by Bai Houshan and Liu Xianglie. [5] The company listed on the Shanghai Stock Exchange STAR Market on July 22, 2019, the market's first day of operation. [6] As of 2023, the company had a 30% market share in lithium nickel manganese cobalt oxides (NMC) with high nickel contents, which are widely used in electric vehicles. [1]
Ronbay's main production sites are in Ezhou, Xiantao and Zunyi in China, as well as in Chungju, South Korea. [4] [7] In 2022, the company began building further production sites in South Korea to circumvent U.S. trade restrictions put in place by the Inflation Reduction Act. [8] [9] It also announced plans to expand into Indonesia [10] and Poland. [11]
In 2024, LG Chem sued Ronbay's South Korean subsidiary, Jaesae Neungwon, alleging it had infringed on five of LG Chem's patents for NMC materials. [12]
A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li+ ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life. Also noteworthy is a dramatic improvement in lithium-ion battery properties after their market introduction in 1991: over the following 30 years, their volumetric energy density increased threefold while their cost dropped tenfold.
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Lithium nickel manganese cobalt oxides (abbreviated NMC, Li-NMC, LNMC, or NCM) are mixed metal oxides of lithium, nickel, manganese and cobalt with the general formula LiNixMnyCo1-x-yO2. These materials are commonly used in lithium-ion batteries for mobile devices and electric vehicles, acting as the positively charged cathode.
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