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AN-1052

更新时间： 2024-10-29 12:54:11

品牌	Logo	应用领域
CYMBET		/
页数	文件大小	规格书
10页	971K
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Operating the EnerChip in High Temperature Environments

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AN-1052

Application Note

Operating the EnerChip™ in High Temperature Environments

Introduction

EnerChip™ solid state rechargeable batteries are distinct from conventional rechargeable batteries. The

EnerChip can be used in environments typically ill-suited for batteries and other storage devices at risk of

leaking toxic and volatile solvents, catching ﬁre, exploding in high temperature environments, or that are simply

too large to ﬁt within space-constrained enclosures. The EnerChip CC combines the EnerChip with integrated

power management, for use in applications requiring backup or bridging power, or as the main power source.

Some applications demand occasional operation at temperatures above the +70°C rated speciﬁcation of the

EnerChip. If such temperature excursions are not properly compensated for in the system design, the result

can be degraded performance or outright failure of the energy storage device. This Application Note provides

information on how to mitigate the detrimental effects of high temperature operation on the EnerChip in such

environments. The following topics are addressed:

•

Factors that inﬂuence the operating characteristics of EnerChips and the parameters that are affected

Effects of high temperature, bias voltage, and state of charge on operation and service life of EnerChips

Recommendations for mitigating detrimental high temperature effects on EnerChip performance

Conﬁguring the EnerChip CC to offset temperature-induced effects using the integrated functions

•

Operating the EnerChip in medical sterilization and high temperature food processing environments

Figure 1 illustrates the beneﬁts of proper EnerChip management in high temperature environments.

Figure 1: Relative Capacity Retention with and

without Proper EnerChip Management

Factors affecting parameters such as cell resistance, self-discharge, and capacity fade include:

•

Time

Temperature

State of charge (SoC)

Bias condition (i.e., continuous charging vs. ﬂoating terminal voltage)

Depth of discharge

With a fundamental understanding of how these factors interact to affect battery life and performance, it is

possible to deploy readily available circuit techniques to mitigate such effects. By controlling or compensating

for these factors with proper battery management, the service life of a battery that might otherwise not meet

the requirements of a given application can be greatly extended – even under operating conditions beyond the

speciﬁed rating of the battery. The data and analysis in this Application Note are presented in several forms,

describing the inﬂuence of these factors on the EnerChip and means to achieve desired performance and

service life objectives under the particular application operating conditions.

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