City-Level Potential of Echelon Utilization of Electric Vehicle Batteries to Meet Wind and Solar Storage Demand in China
中国における電気自動車バッテリーの段階的利用による風力・太陽光発電貯蔵需要への都市レベルの可能性 (AI 翻訳)
Yihao Guo, Xin Chen, Tong Zhang, Zhi Cao
🤖 gxceed AI 要約
日本語
本論文は、都市レベルの統合モデリングフレームワークを開発し、2010年から2060年までの中国における電気自動車（EV）バッテリーの段階的利用（セカンドライフ）の可能性を評価した。高電化シナリオでは、2040年代半ばまでに風力・太陽光発電の貯蔵需要を満たすことができ、リチウム・コバルト消費を50%以上削減できることを示した。地域格差は残るものの、EVと再生可能エネルギーの統合戦略の重要性を強調している。
English
This paper develops a city-level integrated modeling framework to assess the potential of echelon utilization (second-life) of retired EV batteries in China from 2010 to 2060. Under a high electrification scenario, second-life batteries can fully meet wind and solar storage needs by the mid-2040s, reducing lithium and cobalt consumption by over 50% compared to new batteries alone. Persistent regional disparities exist, highlighting the need for coordinated EV, renewable, and circular economy policies.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本でもEVバッテリーのリユースと再生可能エネルギー貯蔵の統合が課題となっている。中国の都市レベルでの詳細なモデリング手法は、日本の地域特性に応じた政策立案や資源効率向上に示唆を与える。特にリチウム・コバルトの消費削減効果は、国内の資源制約を考慮する日本企業にとって重要である。
In the global GX context
This paper provides a rigorous framework for assessing second-life battery potential, relevant globally as countries scale up EVs and renewable energy. The finding that echelon utilization can significantly reduce critical material demand supports circular economy targets under the Paris Agreement and aligns with ISSB and CSRD disclosure expectations on materiality and resource efficiency.
👥 読者別の含意
🔬研究者:This paper offers a novel integrated modeling framework combining vehicle stock, battery degradation, renewable storage, and material flow analysis for second-life batteries.
🏢実務担当者:Corporate sustainability teams can use these insights for battery lifecycle management, supply chain risk assessment, and circular economy strategy development.
🏛政策担当者:Regulators should note the potential of echelon utilization to reduce material demand and align EV adoption targets with renewable energy storage goals.
📄 Abstract（原文）
The rapid expansion of wind and photovoltaic power is intensifying demand for large-scale electricity storage, while the transition to electric vehicles (EVs) is accelerating consumption of critical materials. Retired EV batteries are increasingly considered for echelon utilization in stationary energy storage, yet their long-term system-level potential remains poorly quantified, particularly at fine spatial resolution. Here we develop an integrated, city-level modeling framework that couples vehicle stock projections, climate-sensitive battery degradation modeling, renewable energy storage demand estimation, and dynamic material flow analysis to assess the role of echelon utilization of retired EV batteries in China from 2010 to 2060. We show that under conservative EV penetration pathways, second-life batteries remain insufficient to meet renewable storage demand. Yet, under a high electrification scenario aligned with China's decarbonization goals, echelon-utilized batteries can fully satisfy national wind and solar storage requirements by the mid-2040s, despite persistent regional disparities. Large-scale echelon utilization substantially reduces cumulative demand for critical materials, lowering lithium and cobalt consumption by more than 50% compared with reliance on new batteries alone. These results demonstrate that reuse of EV batteries can enable renewable energy integration while enhancing resource security, underscoring the importance of coordinating transport electrification, energy storage deployment, and circular economy strategies.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acs.est.6c00979first seen 2026-06-18 05:51:43
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