Hans-Walter Praas

Title: The Innovations of Hans-Walter Praas

Introduction

Hans-Walter Praas is a notable inventor based in Kelkeim, Germany. He has made significant contributions to the field of electrochemical technologies, particularly in lithium-ion batteries. With a total of 3 patents to his name, Praas has been instrumental in advancing battery technology.

Latest Patents

One of his latest patents is focused on an electrochemical lithium secondary element. This invention is suitable as active cathode material for an electrochemical lithium secondary cell, utilizing oxygen-deficient spinels Li,Mn,O, where 0 ≤ x ≤ 0.33 and 0.01 ≤ δ ≤ 0.5. The phase diagram for lithium manganese oxide compounds is defined by specific corner compounds, and the spinels are produced through a modified ceramic process. Another significant patent is for a laminated lithium-ion cell and the process for fabricating it. This cell comprises flexible layers, with a negative electrode made of lithium metal or a lithium-intercalating material, and a positive electrode that includes lithiated manganese dioxide and other lithium-metal compounds.

Career Highlights

Hans-Walter Praas is currently associated with Varta Batterie Aktiengesellschaft, a leading company in battery technology. His work has contributed to the development of advanced battery systems that are crucial for various applications.

Collaborations

Throughout his career, Praas has collaborated with notable colleagues such as Rudolf Herr and Peter Bauerlein. These partnerships have fostered innovation and have been essential in the development of his patented technologies.

Conclusion

Hans-Walter Praas is a distinguished inventor whose work in lithium-ion battery technology has made a significant impact. His patents reflect a commitment to innovation and advancement in the field of electrochemistry.