Summary of NGK DEVELOPS HIGH HEAT RESISTANCE LITHIUM-ION BATTERY ACHIEVING AN OPERATING TEMPERATURE OF UP TO 105°C
NGK raised the maximum operating temperature of its EnerCera Coin semi-solid-state lithium-ion battery to 105°C, with sample shipments underway and mass production planned for September 2020. The coin-type battery maintains capacity and power; when fully charged it shows less than 20% capacity loss after 1000 hours at 105°C. Its all-ceramic stacked monolithic body with a small amount of electrolyte provides high thermal stability, targeting automotive and industrial IoT applications.
Parts used in the EnerCera Coin:
- All-ceramic stacked monolithic body
- Electrodes
- Separator
- Small amount of electrolyte
- Coin-type battery casing (implied by coin-type form)
The new battery is scheduled for mass production in September 2020, with potential applications primarily in automotive and industrial IoT devices.
NGK INSULATORS, LTD. (hereinafter “NGK”) has successfully raised the maximum operating temperature of its coin-type “EnerCera Coin” (part of the “EnerCera®” series) battery up to 105 degrees Celsius. Sample shipments are currently underway, with mass production scheduled to begin in September 2020.
In December 2019, NGK developed the world’s first lithium-ion rechargeable battery which has achieved an operating temperature range of -40 to +85 degrees Celsius. As a result of improvements to the product based on customer feedback, NGK recently succeeded in increasing the upper limit of the operating temperature by 20 degrees. The battery is now capable to be used at an operating temperature of up to 105 degrees Celsius, while still maintaining capacity and power. In its fully charged state, when the battery is most prone to deterioration, the capacity decrease is less than 20% even after it is kept at 105 degrees for 1000 hours.
NGK’s EnerCera Coin battery has a unique structure in which a small amount of electrolyte is added to its all-ceramic stacked monolithic body with electrodes and a separator. This provides high thermal stability. The EnerCera battery is categorized as semi-solid-state battery, with performance equivalent to or better than that of a conventional lithium-ion rechargeable battery. The EnerCera battery’s excellent heat resistance characteristics are comparable to those of all-solid-state batteries.
- What is the maximum operating temperature of the EnerCera Coin?
The EnerCera Coin can operate at temperatures up to 105 degrees Celsius. - When is mass production scheduled to begin?
Mass production is scheduled to begin in September 2020. - How much capacity loss occurs after 1000 hours at 105 degrees Celsius when fully charged?
Capacity decrease is less than 20% after 1000 hours at 105 degrees Celsius when fully charged. - What type of battery is the EnerCera Coin classified as?
It is categorized as a semi-solid-state battery. - What gives the EnerCera Coin high thermal stability?
Its all-ceramic stacked monolithic body with a small amount of electrolyte provides high thermal stability. - How does the EnerCera Coin performance compare to conventional lithium-ion batteries?
It has performance equivalent to or better than conventional lithium-ion rechargeable batteries. - What applications are targeted for the EnerCera Coin?
Potential applications are primarily in automotive and industrial IoT devices. - How did NGK improve the battery since its December 2019 development?
NGK increased the upper operating temperature limit by 20 degrees based on customer feedback.
