Celgard, a subsidiary of Polypore International (NYSE:PPO), has filed a complaint against LG Chem, alleging that the Korean chemical giant has infringed one of Celgard’s US patents for a battery separator. The patent in question covers ceramic composite layer lithium-ion battery separators. Celgard filed the lawsuit following a lengthy period of discussions with LG regarding… Read more »
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LG Chem secures international patents for its safety-reinforced battery separator
LG Chem, the world’s largest lithium-ion battery maker, has obtained a patent for its safety-reinforced separator (SRS) in Europe and Japan. The company already has patents for the technology in South Korea, the US and China. The separator is an important component of lithium-ion polymer batteries, separating the negative and positive poles to prevent internal… Read more »
Maxwell and SK to jointly develop ultracap/battery combo
Ultracapacitors (aka ultracaps or supercapacitors) are the toast of the town, thanks to their rapid charge and discharge capabilities, tolerance of extreme temperature conditions and long operational life. However, their killer application may be as partners with lithium-ion batteries, which offer higher energy density. Maxwell Technologies (Nasdaq: MXWL), a manufacturer of ultracapacitor-based energy storage products,… Read more »
South Korean/Chinese joint venture to become China’s biggest maker of EV batteries
South Korea’s SK Innovation Company, China’s state-owned Beijing Automotive Industries Holding Co. and LCD maker Beijing Electronics Holding Co. have agreed to form a joint venture to produce battery packs for EVs, Asian Power reports. The new JV will invest $166.4 million to build a battery plant that will have an annual production capacity of… Read more »
