The automotive industry continues to be a hotbed of patent innovation. Activity in lithium-ion (Li-ion) secondary battery is driven by the growing demand for electric vehicles (EVs) and portable electronics, and growing importance of technologies such as silicon anodes, solid-state electrolytes, lithium-sulfur batteries, and graphene-based batteries. In the last three years alone, there have been over 1.7 million patents filed and granted in the automotive industry, according to GlobalData’s report on Batteries in automotive: Li-ion secondary batteryBuy the report here.

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According to GlobalData’s Technology Foresights, which uses over one million patents to analyze innovation intensity for the automotive industry, there are 300+ innovation areas that will shape the future of the industry.

Li-ion secondary battery is a key innovation area in batteries

A Li-ion secondary battery is a type of rechargeable battery that uses lithium ions to store and release energy. It consists of a positive electrode or cathode, a negative electrode or anode, and an electrolyte. During charging, lithium ions are extracted from the positive electrode and move through the electrolyte to the negative electrode, where they are stored. During discharging, the lithium ions move back to the positive electrode, releasing energy.

GlobalData’s analysis also uncovers the companies at the forefront of each innovation area and assesses the potential reach and impact of their patenting activity across different applications and geographies. According to GlobalData, there are 30+ companies, spanning technology vendors, established automotive companies, and up-and-coming start-ups engaged in the development and application of Li-ion secondary battery.

Key players in Li-ion secondary battery – a disruptive innovation in the automotive industry

‘Application diversity’ measures the number of applications identified for each patent. It broadly splits companies into either ‘niche’ or ‘diversified’ innovators.   

‘Geographic reach’ refers to the number of countries each patent is registered in. It reflects the breadth of geographic application intended, ranging from ‘global’ to ‘local’.  

Patent volumes related to Li-ion secondary battery

Company Total patents (2010 - 2022) Premium intelligence on the world's largest companies
Toyota Motor 118 Unlock Company Profile
Zeon 13 Unlock Company Profile
Reliance Industries 16 Unlock Company Profile
Samsung SDI 75 Unlock Company Profile
Robert Bosch Stiftung 23 Unlock Company Profile
Sion Power 20 Unlock Company Profile
Hyundai Motor 15 Unlock Company Profile
Nissan Motor 149 Unlock Company Profile
Hitachi 17 Unlock Company Profile
Aquion Energy 12 Unlock Company Profile
Murata Manufacturing 48 Unlock Company Profile
Envision Energy 30 Unlock Company Profile
GS Yuasa 18 Unlock Company Profile
Panasonic 103 Unlock Company Profile
Asahi Kasei 35 Unlock Company Profile
Energizer 16 Unlock Company Profile
Sony Group 31 Unlock Company Profile
Resonac 17 Unlock Company Profile
Medtronic 22 Unlock Company Profile
LG 289 Unlock Company Profile
Sumitomo Chemical 27 Unlock Company Profile
International Business Machines 15 Unlock Company Profile
Seiko Group 12 Unlock Company Profile
Albemarle 14 Unlock Company Profile
Toshiba 51 Unlock Company Profile
Kia 14 Unlock Company Profile
NEC 12 Unlock Company Profile
NGK Insulators 36 Unlock Company Profile
Seiko Instruments 13 Unlock Company Profile
Contemporary Amperex Technology 42 Unlock Company Profile
Enovix 13 Unlock Company Profile
ITEN 13 Unlock Company Profile
Samsung Group 38 Unlock Company Profile
Dyson 38 Unlock Company Profile
The French Alternative Energies and Atomic Energy Commission 14 Unlock Company Profile

Source: GlobalData Patent Analytics

LG is one of the leading patent filers  in Li-ion secondary battery technology. The company  has been granted patent for a new battery with longer lifespan, improved safety, and higher energy density. The battery is expected to be used in smartphones, laptops, and electric vehicles.  Some other key patent filers in this space include  Nissan Motor and Toyota Motor.

In terms of application diversity, Aquion Energy leads the pack, while Nissan Motor and Toshiba stood in the second and third positions, respectively. By means of geographic reach, Energizer held the top position, followed by Albemarle and Aquion Energy.

To further understand the key themes and technologies disrupting the automotive industry, access GlobalData’s latest thematic research report on Automotive.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.