US 2018/0123177 A1 · Flexible Solid-State Multiple-Stacked Planar Lithium-Ion Battery Module

Abstract

A flexible solid-state multiple-stacked planar lithium-ion battery module is provided. It comprises a number of lithium-ion battery groups that consist of back-to-back multiple-stacked electrochemical cells interconnected in parallel. Solid electrolytes are used in all of electrochemical cells. The battery groups are packed and sealed with flexible polymeric materials. The battery groups are combined into some battery sections. The positive and negative terminals of every battery group are connected to corresponding side terminals which are controlled with side switches. The positive terminals of the first battery groups in every battery section and the negative terminals of the last battery groups in every battery section are further connected to a positive rotary switch and a negative rotary switch, respectively. With these different switches and circuit control boxes, input and output voltages and currents of the battery module can be freely adjusted and controlled.

Claims8

Dependent claims

A flexible solid-state multiple-stacked planar lithium-ion battery module comprising:

two or more lithium-ion battery groups;
said battery groups combined into one or more battery sections;
four or more side terminals connected to the cathodes and the anodes of said battery groups via metal strips or wires;
four or more side switches or relays to control said side terminals;
one or more circuit control boxes;
one or more positive rotary switches or relays connected to the positive input interfaces of said circuit control boxes with various poles connected to the first positive side terminals of said battery sections;
and
one or more negative rotary switches or relays connected to the negative input interfaces of said circuit control boxes with various poles connected to the last negative side terminals of said battery sections.

5 more elements

A packing and sealing method to fabricate a flexible solid-state planar lithium-ion battery module comprising the following steps:

a roll-to-roll procedure to coat anode and cathode materials onto anode and cathode current collectors, wherein said anode and said cathode current collectors are coated on one side or both sides;
preparing solid electrolyte membranes;
packing multiple-stacked electrochemical cells layer by layer according to predesigned lithium-ion battery groups;
cutting or scribing said lithium-ion battery groups according to predesigned areas;
welding metal strips or wires to connect all of the anodes of said electrochemical cells in said lithium-ion battery group together;
welding metal strips or wires to connect all of the cathodes of said electrochemical cells in said lithium-ion battery group together;
welding metal strips or wires to connect each of said positive terminals (cathodes) of said lithium-ion battery group;
welding metal strips or wires to connect each of said negative terminals (anodes) of said lithium-ion battery group;
injecting liquid electrolyte solutions containing lithium salt for gel polymer electrolytes and sealing edges of said battery groups;
packing and sealing said lithium-ion battery groups according to predesigned lithium-ion battery module with the order of backplane film, ethylene vinyl acetate (EVA) film, said lithium-ion battery groups;
EVA film, and front plate film, wherein the materials of backplane and front plate films are one of below:
polyimide (PI), polybenzimidazoles (PBIs), polyamideimide (PAI), polyetheretherketone (PEEK), polyethersulfone (PES), and polyamide(PA);
laminating packed layers inside a laminator under vacuum with a temperature between 110-180° C.;
installing side terminals, side switches or relays, rotary switches or relays, light indicators, and circuit control boxes;
connecting all of said terminals, said switches and said circuits;
cutting the edges of said battery module;
and
testing the completed battery module.

15 more elements

Dependencies are inferred from the claim text.

Flexible Solid-State Multiple-Stacked Planar Lithium-Ion Battery Module

Life of this patent

Flexible Solid-State Multiple-Stacked Planar Lithium-Ion Battery Module

Life of this patent

Abstract

Claims8