As the end of the year approaches, the lithium battery industry has entered a new round of supply negotiations. Two major battery diaphragm companies, Xingyuan Materials and Enjie Co., Ltd., recently issued announcements in succession, signing large orders for battery diaphragm supply with Yiwei Lithium Energy, totaling no less than 5 billion square meters. As one of the upstream materials of lithium batteries, the diaphragm industry is in a situation where both supply and demand have increased and the supply exceeds demand, as the upstream and downstream industrial chains of lithium batteries have intensively reduced prices in recent years. Xingyuan Materials has released a new generation of high-safety lithium battery diaphragms, the price will be higher than conventional coated diaphragms, and Enjie Co., Ltd. and Xingyuan Materials have also laid out overseas markets with higher gross profits. Industry insiders believe that in addition to seeking profits from technology, it is a major industry trend for diaphragm companies to build factories close to overseas manufacturers.