同兴环保：钠离子电池正极材料及电池产品中试实验正在开展

array(1) { [442819]=> array(2) { [2]=> array(4) { [0]=> string(9) "锂电池" [1]=> string(9) "钠电池" [2]=> string(12) "正极材料" [3]=> string(12) "同兴环保" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }