HU Wenjie, ZHOU Jia, MA Chenglin, ZHAO Hua, DONG Tao
The implementation of the EU Battery Act has intensified the demand for recycled batteries in the market, single-channel recycling of retired power batteries can no longer fully meet the need of production, dual-channel recycling model is becoming a trend. In this paper, a single-channel retired power battery recycling model is proposed, and two dual-channel retired power battery recycling models are extended on the basis of the proposed model. The effects of changes in key parameters on the equilibrium results are analyzed under the three models. The impacts of government subsidy on supply chain members' strategic preferences and incentives to recycle under the dual-channel recycling model are explored in the extended analysis. The study shows that: 1) Changes in market size, market discount factor, refurbishment cost and price sensitivity factor will lead to adjustments in the strategies of supply chain members. Supply chain members can always benefit from increased marketing investment to increase the demand for new energy vehicles with refurbished batteries (uv). 2) Battery manufacturers (BM) and Third party battery recycling remanufacturer (RM) will benefit from the RE model under more stringent environmental policy. Although strict environmental policies will always have a negative impact on electric vehicle manufacturer (EV), choosing the RB model can help to minimize this negative impact. 3) Government subsidy provides more significant incentives for EV and RM, while the incentives for BM are very limited. 4) Strict environmental policy always reduce the profit of the supply chain, while government subsidy is beneficial to the performance of the supply chain. Without government subsidy, RB model should be chosen to improve the profit of the supply chain under lenient environmental policy, otherwise, single-channel mode is beneficial to improve the profit of the supply chain; with government subsidy, RB model is always more beneficial to the supply chain. The above analysis leads to the following management insights: Supply chain members should increase marketing investment to increase demand for uv. Strict environmental policy always discourages BM and EV from participating in battery recycling, and there is a need to develop specific incentives for EV and BM. Government subsidy can effectively incentivize EV and RM to participate in battery recycling, incentives for BM should be more diversified. This study only considered the effect of government subsidy on the performance level of supply chain members, the impact of EPR on the strategic choices of supply chain members and battery recycling will be further explored in the future.