An electrochemical apparatus includes an electrode assembly and a conductive plate. The electrode assembly is of a wound structure and includes a first electrode plate. The first electrode plate includes a first conductive layer and a first conductive mate...

An electrochemical apparatus includes a positive electrode plate. The positive electrode plate includes a positive electrode material layer. The positive electrode material layer includes a fluorine-containing polymer and a cyano-containing polymer. A rati...

According to one embodiment of the present invention, a lithium ion battery having desirable safety performance is provided. The lithium ion battery includes a battery housing, a battery cover assembled to the battery housing, a pressure relief valve coupl...

An electrochemical energy storage device comprises a cell (1), an electrolyte and a package (2). The electrochemical energy storage device further comprises a binding material (3) positioned between the cell (1) and the package (2). The binding material (3...

The invention discloses a soft-package lithium battery edge fold structure, comprising a side edge of a soft-package lithium battery and a double edge fold folded by using a packing aluminum foil of the cell of the soft-package lithium battery, wherein a g...

The present invention provides a cell cap assembly including a grommet defining a through hole, a stripper contact plate defining at least one gas hole securely received in the through hole, an rupture plate securely positioned in the through hole and in e...