Solving Issues with Backup Power Supplies for Industrial Equipment
Introduction of all-solid-state battery power modules to reduce battery replacement frequency

Background

In response to a recent declining working population, automation has been advancing in production sites such as factories, with the aim of improving production efficiency. Industrial equipment such as robots and PLCs (programmable logic controllers), commonly used in automation, are equipped with backup power supplies to retain information in their internal memories in case of power outages or power cuts during maintenance.

Traditionally, primary batteries (single use type) have been mainly used for these backup power supplies. However, due to their limited capacity, regular checks of remaining capacity and battery replacements are necessary. As the number of backup power supplies utilized in production sites increases, the burden of battery replacements has become significant for users.

Therefore, the use of rechargeable batteries as a replacement for primary batteries can be considered, but the introduction of rechargeable batteries into the industrial equipment requires the design of dedicated charging circuits and boost circuits, which may be a technical challenge, especially for users unfamiliar with handling rechargeable batteries.

PLC
PLC

Issues

(1) When using primary batteries for backup power supplies, significant labor is required to check their remaining capacity and for battery replacement tasks.

(2) Replacing primary batteries with rechargeable batteries requires the design of dedicated charging circuits and boost circuits, which presents a high technical hurdle.

Solution

Maxell's all-solid-state battery module provides an effective solution to these challenges. This module is equipped with Maxell's ceramic packaged all-solid-state batteries, which are rechargeable and are expected to have a long battery life∗1, enabling industrial equipment with backup power supplies that do not require battery replacement for an extended period. In addition, compared to conventional lithium-ion batteries, these all-solid-state batteries exhibit superior heat resistance, making them suitable for use in high-temperature environments∗2.

Furthermore, the module comes pre-integrated with charging and boosting circuits, eliminating the need for dedicated circuit design and allowing for easy implementation in existing systems. This significantly lowers the technical barriers associated with introducing secondary batteries.

The module can be equipped with up to five all-solid-state batteries, allowing for flexible capacity design tailored to specific application requirements.

Maxell is committed to supporting industrial efficiency and reliability with its all-solid-state battery module.

  • Long-life: The Maxell conventional coin-type lithium-ion battery (927 size) can maintain 90% capacity for 10 days, while the all-solid-state battery can maintain 90% capacity for 100 days, based on accelerated testing at 60 deg. C.
  • High heat-resistant: It is possible to discharge up to +125 deg. C. The heat resistance is high compared to that of general lithium-ion batteries.

For more details on the all-solid-state battery power module, please visit the following webpage.

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