LITHIUM-ION BATTERY
卷宗概要
发明人
Xiaodong Cao; Fei He; Suli Li
IPC 分类
CPC 分类
The disclosure provides a lithium-ion battery that satisfies the equation (2M+3)(S+2)/W≥20, where M=exp(m/d)+(d−2)(m−0.26). Wherein, mis the tensile strength of the negative electrode current collector in the length direction, and dis the thickness of the negative electrode current collector. Additionally, S=exp(m/d)+(d−2)(m−0.16), wherein mis the puncture strength of the separator, and dis the thickness of the substrate within the separator. Furthermore, W=(((exp(−10q))/(φ−6)+exp(10q))(d−13.5)(ρ−3.5))/100. This disclosure effectively addresses the issue of pressure exerted on the battery casing due to volume swelling of the negative electrode material, thereby significantly enhancing the battery's cycle life and safety performance.
原文（中文）
The disclosure provides a lithium-ion battery that satisfies the equation (2M+3)(S+2)/W≥20, where M=exp(m/d)+(d−2)(m−0.26). Wherein, mis the tensile strength of the negative electrode current collector in the length direction, and dis the thickness of the negative electrode current collector. Additionally, S=exp(m/d)+(d−2)(m−0.16), wherein mis the puncture strength of the separator, and dis the thickness of the substrate within the separator. Furthermore, W=(((exp(−10q))/(φ−6)+exp(10q))(d−13.5)(ρ−3.5))/100. This disclosure effectively addresses the issue of pressure exerted on the battery casing due to volume swelling of the negative electrode material, thereby significantly enhancing the battery's cycle life and safety performance.