Calendar and PHEV cycle life aging of high-energy, lithium-ion cells containing blended spinel and layered-oxide cathodes

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• 作者：J.  ; Belt^a ; V.  ; Utgikar^b ; I.  ; Bloom^c ;   ; ^{ira.bloom@anl.gov}
• 关键词：PHEV battery testing ; Performance degradation ; Curve-fitting ; Calendar life ; Charge-sustaining cycling ; Charge-depleting cycling
• 刊名：Journal of Power Sources
• 出版年：2011
• 出版时间：1 December 2011
• 年：2011
• 卷：196
• 期：23
• 页码：10213-10221
• 全文大小：1636 K
• ISSN：S0378775311016107

文摘

One hundred seven commercially available, off-the-shelf, 1.2-Ah cells were tested for calendar life and CS cycle- and CD cycle-life using the new USABC PHEV Battery Test Manual. Here, the effects of temperature on calendar life, on CS cycle life, and on CD cycle life; the effects of SOC on calendar life and on CS cycle life; and the effects of rest time on CD cycle life were investigated. The results indicated that the test procedures caused performance decline in the cells in an expected manner, calendar < CS cycling < CD cycling. In some cases, the kinetic law changed with test type, from linear-with-time to about t². Additionally, temperature was found to stress the cells more than SOC, causing increased changes in performance with increasing temperature.