Active material for secondary cell, electrode for secondary cell, secondary cell, electric vehicle, and electronic device

A secondary cell is provided with a positive electrode, a negative electrode, and an electrolyte; (1) the negative electrode including a plurality of carbon particles and a plurality of non-carbon particles, (2) the carbon particles containing graphite, (3) the non-carbon particles containing a material including at least one of silicon (Si), tin (Sn), and germanium (Ge) as a structural element, and (4) the distribution (horizontal axis: particle diameter (D) (mu m), vertical axis: first order derivative (dQ/dD)) of the first order derivative of an integrated value (Q) of the relative particle amount with respect to the particle diameter (D) of the plurality of carbon particles having at least one discontinuity. 二次电池设置有正极、负极以及电解质；所述负极(1)包括多个碳颗粒和多个非碳颗粒，(2)碳颗粒包括石墨，(3)非碳颗粒包括含有硅(Si)、锡(Sn)、和锗(Ge)中的至少种作为构成元素的材料，以及(4)多个碳颗粒的相对颗粒量的积分值Q相对于粒径D的阶微分值的分布(横轴：粒径D(μm)，纵轴：阶微分值dQ/dD)具有至少个不连续点。