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CN101944637A 非平衡的锂离子微电池 失效 - 放弃专利权

非平衡的锂离子微电池
摘要：
本发明涉及非平衡的锂离子微电池，其中，该锂离子微电池包括由第一锂嵌入材料制得的具有Li+离子存储容量C1和第一厚度(t1)的正极、电解质、以及由第二嵌入材料制得的具有存储容量C2和第二厚度(t2)的负极。厚度(t1和t2)使比率C1/C2大于或等于10并且小于或等于1000。在所述微电池的第一次充电期间，Li+离子嵌入到负极中并且使所述第二嵌入材料完全饱和。当继续初始充电时，它们通过电镀在所述电解质和锂饱和的负极之间形成金属锂层。在后续的充电和放电循环期间，只有所述金属锂层参与锂离子的传输。
摘要（英）：

The lithium-ion microbattery comprises a positive electrode having a first Li+ ion storage capacity and a first thickness made from a first lithium insertion material, an electrolyte and a negative electrode having a second storage capacity and a second thickness made from a second insertion material. The thicknesses are such that the ratio of the first storage capacity over the second storage capacity is greater than or equal to 10 and lower than or equal to 1000. During the first charging of the micro-battery, the Li+ ions are inserted in the negative electrode and completely saturate the second insertion material. When initial charging is continued, they form a metallic lithium layer between the electrolyte and the lithium-saturated negative electrode by electroplating. During the subsequent charging and discharging cycles, only the metallic lithium layer participates in transfer of lithium ions.

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