The journey of inventing rechargeable lithium-ion batteries is filled with scientific challenges and technological breakthroughs. The first rechargeable lithium-ion battery emerged in 1972, successfully developed by American scientist Stanley Whittingham at Exxon.
This battery utilized titanium disulfide as the cathode, metallic lithium as the anode, and employed liquid electrolytes, allowing the intercalation and deintercalation of lithium ions, thus realizing the charging and discharging functions of the battery. However, limited by the technological constraints at that time and the unclear market demands, this battery failed to achieve wide acceptance. Subsequently, scientists from all over the world delved further into the research of rechargeable lithium-ion battery technology. Notably, British scientist John B. Goodenough made a significant breakthrough in the early 1980s by developing a battery with lithium cobalt oxide as the cathode material, significantly enhancing the battery's voltage and performance. Based on this foundation, Japanese scientist Akira Yoshino further improved the battery's stability and safety by replacing the anode material with carbon-based materials derived from petroleum coke.
Ultimately, it was Sony Corporation that promoted the commercialization of rechargeable lithium-ion batteries in 1991, which were subsequently widely adopted in portable electronic devices such as camcorders and mobile phones, revolutionizing people's lifestyles. It can be stated that the invention of rechargeable lithium-ion batteries is a testament to the collaborative efforts of scientists from multiple nations.