Mechanical-Recycle Technology of Automobile Shredder Residue

Shogo Izawa (Nagoya University)･Daigo Saga (Japan Steel Works)･Yuta Urushiuama･Akinori Yoshimura (Nagoya University)

we are developping mecoanical-recycle technology of automobile shuredder residue.We make automobileparts by using this recyed material.

Development of Chemical Sorting Technology for Removing Impurities from End-of-Life Automotive Plastic Parts

Yasushi Terasaka･Haruki Chiba･Shinsuke Yabunaka･Shuta Suzuki･Shoko Namera･Atsushi Hanaoka･Satoshi Hirawaki (Honda R&D)

Automotive plastic waste components typically contain various solid contaminants, including insert metals, rubber hoses, gaskets, and reinforcing materials such as glass fibers embedded within the resin matrix. These heterogeneous inclusions significantly hinder the recovery of high-purity resin through conventional mechanical separation techniques, which are often ineffective in isolating the resin from non-resin materials. To address this issue, we have developed a chemical sorting technology that enables selective dissolution of the target resin while efficiently removing contaminants. This process involves the use of solvents to dissolve the resin, followed by filtration and centrifugal separation to eliminate solid impurities. As a result, the method achieves a substantially higher separation purity compared to traditional approaches. Furthermore, the system is designed to accommodate complex composite waste and supports continuous processing, making it suitable for industrial-scale recycling operations. This technological advancement enables the high-quality recovery of resins derived from end-of-life vehicles and contributes to the realization of a sustainable circular economy in the automotive sector.

Environmental Impacts of Hydrothermal Acid Leaching of Lithium-Ion Battery Cathode Materials

Zhengyang Zhang･Muhammed Engha Isah･Panpan Wu･Qingxin Zheng･Masaru Watanabe･Kazuyo Matsubae (Tohoku University)

Urban mining and the development of green recycling technologies for spent lithium-ion batteries represent critical strategies for transitioning toward a circular economy. This research employs life cycle assessment (LCA) to quantify the environmental impacts of a newly developed hydrothermal organic acid leaching process for the recovery of lithium, cobalt, nickel, and manganese from black mass, with the aim of elucidating the environmental advantages of the proposed process compared to existing acid leaching processes.

A Circular Economy Indicator for Vehicles
-(Third Report) Examination of Methods for Evaluating Initiatives Aimed at "Promote Longer Use"-

Yoshiro Masuda (Toyota Motor)･Takamichi Iwata (Toyota Central R&D Labs.)･Kiyotaka Tahara･Mitsutaka Matsumoto (AIST)･Tomohiro Tasaki (National Institute for Environmental Studies)･Masashi Hara･Tetsuro Kobayashi･Daisuke Yamada･Hisaaki Takao (Toyota Central R&D Labs.)･Eiji Ishida･Takayuki Nagai (Toyota Motor)

Up to now, we have proposed evaluation indicators for resource circularity as a measure for assessing the circular economy, taking into account differences in material types. On the other hand, it is also important to reduce resource consumption by "promote longer use." In this report, we present our examination of methods for evaluating initiatives aimed at "promote longer use."

Optimal LCA: State of Health on End of life Automotive Systems and Their Reuse

Joël Op de Beeck･Badr-Din Lahmoumi･Krzysztof Potaczek･Marcos Carvalho-Barreto･Nissrine Harbil･Toshihiko Minami･Vincent Cuvelier･Gabin Goy･Pawel Manko (OPmobility)

The world is engaged to reduce CO2 from mobility. Until now, this roadmap has purely focussed on exhaust emissions of greenhouse gases. It neglected the sources of fuels and energy. It also neglected upstream (vehicle production) and downstream (after life) parts of an automotive life cycle. However, an LCA approach is mandatory to truly control and reduce the CO2 footprint of mobility. In this paper we will focus on the upstream and downstream phases. The CO2 emissions of system production and recycling are studied and optimised. In other studies, this is done for yet to produce systems and components. In this study we will take a close look at parts already in the field and reaching the end of their active cycle (vehicle end of life). How can we asses their State of Health? Can they be reused? Can they meet the newest regulations?