Ningde Amperex Technology Limited

Dongguan Amperex Technology Limited

Yuanjie Zhang

An electrode plate includes a current collector and an active material layer provided on the current collector. The active material layer includes a first composite particle including a first active material particle and a first binder particle and a second composite particle including a second active material particle and a second binder particle. In a thickness direction of the active material layer, the first composite particle is closer to the current collector than the second composite particle. A quantity of the first active material particle contained in the first composite particle is greater than a quantity of the second active material particle contained in the second composite particle. Components of both the first binder particle and the second binder particle include polypropylene.

Electrode plate, electrochemical apparatus, and electronic apparatus

A battery includes a packaging shell and a battery cell. The battery cell is disposed in the packaging shell, the battery cell includes a first electrode plate, the first electrode plate includes a first empty foil area and a second empty foil area where no active material is disposed on either side of the first electrode plate. The first empty foil area is arranged on a first surface, the second empty foil area is arranged on a second surface. At least one of the first surface and the second surface is adhered to the packaging shell by a bonding member. In a width direction of the battery cell, a width of the battery cell is W, a width of the first empty foil area is W1, a width of the second empty foil area is W2, and 0≤(W1+W2)/W≤40%.

Growing community of inventors

Ningde, China

Yuanjie Zhang