Abstract
ConocoPhillips has engaged in research and development of carbonaceous materials as anode material for lithium ion batteries for the past 10 years and developed a technology platform for producing graphite anode materials for Li-ion batteries (Li-B). The CPreme® graphite powders were developed as anode material for Li-ion batteries, specifically addressing the challenging needs of Li-B in automotive and other high-power applications. The CPreme® graphite powders provide excellent combination of power, energy density, long cycle life and safety. This presentation provides details behind the technology platform used in making CPreme® graphites. Examples of how CPreme® graphites can help the LiB manufacturers meet the difficult requirements of future automobiles are discussed.
Highlights
ConocoPhillips is a global integrated energy company with extensive petroleum refining capability
While most refiners dispose of petroleum coke as a solid fuel, ConocoPhillips has been producing high value specialty cokes and other carbon products from petroleum for approximately 50 years and is a leading supplier of graphite grade coke to electric arc furnace electrode manufacturers worldwide for the production of steel
ConocoPhillips launched a R&D effort in the late 1990s to develop graphite based anode powders for high performance and high power Li-ion batteries. This effort has resulted in commercialization of CPreme® graphite powders that are finding increasing acceptance in the Li-ion batteries targeted for electrical vehicles slated for rollout in the few years
Summary
ConocoPhillips is a global integrated energy company with extensive petroleum refining capability. While most refiners dispose of petroleum coke as a solid fuel, ConocoPhillips has been producing high value specialty cokes and other carbon products from petroleum for approximately 50 years and is a leading supplier of graphite grade coke to electric arc furnace electrode manufacturers worldwide for the production of steel Using this background, ConocoPhillips launched a R&D effort in the late 1990s to develop graphite based anode powders for high performance and high power Li-ion batteries. We found a novel way to coat a powder with a carbon layer that would cover the entire surface of a particle and reduce any surface cracks and dislocations This invention resulted in the development of a process that can reduce the surface area of graphitic particles and improve first cycle efficiency of graphite materials
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