副産物から製品へ：高出力リチウムイオン系デュアルカーボン電池のための統一インターカレーション軟炭素

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides insights into soft carbon materials for dual-ion batteries, offering a new approach to high-power energy storage.

🏢実務担当者:Relevant for battery manufacturers and energy storage companies seeking cost-effective, high-performance materials.

Abstract The pursuit of cost-effective energy storage systems with high power and long cycle life has driven increasing interest in carbon-based dual-ion technologies. Herein, we present a by-product-to-product strategy that transforms petroleum pitch—an abundant industrial by-product—into a high-value soft-carbon framework, enabling a dual-function intercalative system in which a single precursor-derived soft carbon serves as both cathode and anode in lithium-ion-based dual-carbon batteries. As-prepared soft carbon delivers 153 mAh g-1 at a high current density of 2 A g-1 at the anode, enabled by enlarged near-surface domains that facilitate fast, reversible ion storage. Similarly, as a cathode, it delivers 55 mAh g-1 at 2 A g-1, exceeding that of a conventional graphite cathode, owing to abundant active sites and short diffusion pathways, supporting fast charging and enhanced structural stability. The dual-role intercalative behavior establishes a balanced system with a high energy density of ~114 Wh kg⁻¹ even at a high-power density of ~3665 W kg⁻¹ and a durability of 2000 cycles. This work demonstrates pitch-derived soft carbon as a unified bipolar electrode framework, advancing the design of next-generation lithium-ion batteries with high power and long life.

• openalex https://doi.org/10.1149/1945-7111/aea1c4first seen 2026-09-04 05:06:08