Abstract

The invention relates to production of thin batteries. In order to achieve a fast and simple production process, the method comprises: bringing into use (A, B, C, D, E) an anode web comprising anode half cells consisting of multiple material layers applied on top of each other, and which layers are mutually aligned and sized for use in a thin battery, bringing into use (F, G, H, I, J) a cathode web comprising cathode half cells consisting of multiple material layers applied on top of each other, and which layers are mutually aligned and sized for use in a thin battery, aligning said anode web and said cathode web into a mutual predetermined position, and bringing (K) said anode web and said cathode web into contact with each other in order to attach said anode half cells to corresponding cathode half cells for producing thin batteries.

IPC Classes  ?

• H01M 6/12 - Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes
• H01M 10/04 - Construction or manufacture in general
• H01M 6/40 - Printed batteries

Abstract

A thin battery with improved properties containing a cathode paste is presented. The cathode paste comprises a cathode active material, an electrolyte solution, one or more binding agent and boric acid. A method for preparing a cathode paste and a cathode are also provided.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 6/40 - Printed batteries
• H01M 6/12 - Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes