▎ 摘　　要

NOVELTY - Energy storage system has at least one electric core (100) comprises positive electrode, diaphragm (170), electrolyte and negative electrode. The inner side of the at least one electric core located at the outer most two electrode respectively is provided with a positive electrode active material layer (110) and negative electrode active material layer (130). The only inner side of the electrode sheet of the positive electrode material layer is a total positive electrode sheet. The only electrode sheet of the inner side provided with the negative electrode material layer is the total negative electrode sheet. The electrode sheet between two electrode sheets at the outermost side is a bipolar electrode sheet, The two sides of the bipolar electrode sheet is provided with a positive electrode active material layer and negative electrode active material layer. The opposite surfaces of the adjacent two electrode sheets are provided with opposite active material layer polarities. USE - Energy storage system. ADVANTAGE - The system has combine the electronic conductivity design of the current collector, performs the design with active safety function, avoids the lithium-ion electrochemical behavior runaway performance caused by battery short circuit and so on, avoids the fire explosion, and realizes the purpose of the high-safety battery. DETAILED DESCRIPTION - Energy storage system has at least one electric core comprises positive electrode, diaphragm, electrolyte and negative electrode. The inner side of the at least one electric core located at the outer most two electrode respectively is provided with a positive electrode active material layer and negative electrode active material layer. The only inner side of the electrode sheet of the positive electrode material layer is a total positive electrode sheet. The only electrode sheet of the inner side provided with the negative electrode material layer is the total negative electrode sheet. The electrode sheet between two electrode sheets at the outermost side is a bipolar electrode sheet, The two sides of bipolar electrode sheet is provided with a positive electrode active material layer and negative electrode active material layer. The opposite surfaces of the adjacent two electrode sheets are provided with opposite active material layer polarities. The energy storage system is filled with electrolyte. The electrode sheet comprises a current collector. The current collector comprises a polymer material. An INDEPENDENT CLAIM is included for a method for manufacturing energy storage system, which involves: (A) crushing the polymer; (B) mixing completely in the high speed crusher, if the polymer contains conductive agent, the conductive agent is added to the mixture for three-dimensional mixing; (C) dispersing uniformly polymer and conductive agent to obtain a mixture; (D) melting; (E) mixing the obtained mixture at a certain temperature of 180-240 degrees C; (F) using casting process to prepare the conductivity controllable polymer current collector; (G) adhering the active substance film on the obtained conductivity controllable polymer current collector; (H) coating carbon coating layer by dry bonding or coating directly the active substance slurry on the obtained conductivity controllable polymer current collector by wet method; (I) using energy storage system adopts multiple electrode sheets; (J) assembling into electric cores in the form of alternate lamination assembly of electrode sheet, diaphragm and electrolyte or solid electrolyte; (K) assembling the outer casing of the electric core; (L) making two outermost electrodes are not coated or bonded with material layers, because the current collector is conductive, the battery management system is connected to the outermost electrode; (M) coating the inner surface of the outermost electrode with single-sided electrode with a positive electrode material layer and a negative electrode material layer; (N) placing the separator in a manner that closely adheres to the material layer, and only one separator is needed for each positive electrode material layer and the adjacent negative electrode material layer; (O) making each positive electrode material layer, diaphragm and negative electrode material layer constitute a small power supply unit, the power supply unit; and (P) making the electrolyte cannot be connected to the power supply unit, where the energy storage system is composed of multiple such power supply units in series. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an energy storage system. Electric core (100) Positive electrode active material layer (110) Negative electrode active material layer (130) Diaphragm (170)